2002 Chevrolet Trailblazer technical service bulletins
641 technical service bulletins and manufacturer communications cover the 2002 Chevrolet Trailblazer.
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
- Unknown or other
- Electrical system
- Unknown or other
- Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles
- GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities
- This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves...
- This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as...
- This service bulletin provides information for dealers/technicians on Service Programming System (SPS)...
- This bulletin provides information for electrical ground repairs using new General Motors replacement...
- This bulletin advises the technician of possible location of an internal coolant leak from a specific...
- This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake...
- This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil...
- This informational bulletin provides information for dealers/technicians on Headlamp, Tail Lamp, License...
- This PI bulletin advises the technician on the proper way to install the pistons in an engine.
- Equipment: other: owners/service/other manual
- This service bulletin provides information on Concerns or Questions Regarding Installation of Dealer...
- This service bulletin provides information about the Hunter wheel Road Force balancers that should be...
- This service bulletin provides information for dealers on how to submit a product information report (PIR)...
- The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle...
- This service bulletin provides graphics, information and guidelines for engine component wear to assist...
- Engine
- This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter...
- This service bulletin provides service information on new torque specification and installation procedure...
- This warranty administration bulletin provides information regarding the field action courtesy...
- This service bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Water...
- Visibility: defroster/defogger/HVAC system: rear window: electrical heating element
- This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to...
- This service bulletin provides information on Module Harvesting.
- Unknown or other
- This service bulletin provides information on Handling Requests for Modifications to Permanently...
- This diagnostic tip advises the tech not to separate the flexplate from the torque convertor or damage my...
- Power train
- This bulletin provides information on tools available to find an intake vacuum leak or exhaust leak to...
- Equipment
- Fuel system, gasoline
- Equipment
- Equipment
- Engine and engine cooling: cooling system
- This informational bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake...
- Engine and engine cooling
- This informational bulletin provides information on key code security rules and information on GM keycode...
- Equipment: electrical: anti-theft devices
- Electrical system
- This informational bulletin provides information for dealers/technicians on Exterior Lamp Condensation and...
- This informational bulletin provides information for dealers how to submit a product information report...
- This informational bulletin provides information on key code security and information on GM key code look...
- Equipment: appliance: air conditioner
- Equipment
- This informational bulletin advises of a new fuel injection kit used for decarbonizing the intake valves,...
- Electrical system
- This bulletin provides information for electrical ground repairs using new replacement fasteners with...
- Engine and engine cooling: exhaust system: emission control
- Equipment: electrical: radio/tape deck/cd etc.
- Visibility: rearview mirrors/devices
- Equipment: electrical
- Equipment: electrical: radio/tape deck/cd etc.
- Equipment
- Power train: transfer case (4-wheel drive)
- Equipment
- Equipment
- Engine
- Equipment
- Electrical system: instrument cluster/panel
- Equipment: electrical
- Electrical system: software
- Equipment: other: owners/service/other manual
- This informational bulletin advises the possible issues that may occur using a scotch brite pad or highly...
- This informational bulletin explains how to update the older Onstar module software to new software over GSA.
- This warranty administration bulletin provides policy information with the field action courtesy...
- This informational bulletin provides information for dealers how to submit a product information report.
- Electrical system: software
- Steering
- Electrical system: software
- Engine
- This informational bulletin provides information on OnStar® VCIM is currently restricted parts
- Electrical system
- Equipment adaptive/mobility
- Electrical system
- This preliminary information communication provides information to the technician about vehicles that have...
- This preliminary information communication provides information to the technician about vehicles that have...
- This informational bulletin provides additional information on how to install pistons and suggest what...
- This technical bulletin provides a procedure to reprogram the media disc player with the latest...
- This informational bulletin provides information to gm dealers on the correct cleaning methods when...
- This preliminary information communication advises the technician if unable to place an onstar call in the...
- This preliminary information communication advises the technician on the steps to diagnose and repair the...
- This preliminary information communication advises the technician the steps on repairing the concern
- This preliminary information communication provides information to help the dealership technicians perform...
- This preliminary information communication advises the technician on the steps for diagnosing the concern
- This preliminary information communication advises the technician, if unable to place an onstar call in...
- Equipment: electrical
- This informational bulletin provides information on vehicles may rock or move slightly forward or rearward...
- Engine and engine cooling: exhaust system: emission control: catalytic convertor
- Fuel system, other: storage: fuel gauge system
- Equipment: electrical
- This informational bulletin provides an out line on Headlamp, Tail Lamp, License Lamp or Fog/Driving Lamp...
- This informational bulletin provides information on Clarification of Use
- This preliminary information communication provides information to the technician about finding needle...
- This informational bulletin provides information on exterior lamp condinsation and replacement guidelines
- This informational bulletin provides information on Part Restriction and Ordering Process Information for...
- Special coverage (revised service procedure). a fuel tank inlet check valve (ICV) could fracture. the icv...
- Special coverage (revised part information and service procedure). a fuel tank inlet check valve (ICV)...
- Special Coverage Adjustment ? Fuel Tank Inlet Check Valve Fracture
- Electrical system
- Equipment: electrical: radio/tape deck/cd etc.
- Fuel system, gasoline
- Equipment: electrical: anti-theft devices
- OnStar® Voice Fallback Number Update Some customers may have received a letter from OnStar® stating that...
- OnStar Voice Fallback Number Update
- Special Coverage Adjustment Fuel Tank Inlet Check Valve Fracture
- Engine and engine cooling: exhaust system: emission control: catalytic convertor
- Equipment: electrical: navigational system(global positioning system)
- Special coverage. some vehicles contain a fuel tank inlet check valve (ICV) that could fracture. the icv...
- Electrical system
- Fuel system, gasoline
- This informational bulletin provides information to advise dealers about seat belt buckles not operating...
- Electrical system
- This informational bulletin provides information on a GM of Canada OnStar® cellular communication upgrade.
- Equipment adaptive/mobility
- Electrical system
- This informational bulletin provides dealership personnel with information on flexible fuel vehicles...
- This informational bulletin provides information to assist dealership personnel with the identification of...
- Equipment: other: owners/service/other manual
- Buick/saab/chevrolet/hummer/gmc: some vehicles are experiencing, at a cold start for engines, reduction in...
- This informational bulletin provides information to dealership personnel on upgrading certain OnStar...
- Engine
- This informational bulletin provides information on communication with OnStar® module after Canadian...
- Equipment: electrical
- This informational bulletin updates information on electrical ground repairs using new replacement...
- Engine and engine cooling
- This preliminary information communication provides information to the technician about changing the tire...
- Equipment: electrical
- This informational bulletin provide information for the technicians to repair the rear window defroster...
- This warranty bulletin clarifies the use of dealer empowerment to satisfy the customer.
- Canadian Customers Unable To Place Calls And Turn By Turn Inoperative In The United States.
- XM Audio Traffic And Travel Link Availability And Operation.
- Equipment: electrical: radio/tape deck/cd etc.
- This information bulletin provides the dealers on how to submit a product information report.
- This information bulletin provides the technician the information on how to properly clean a metal surface...
- This informational bulletin provides information on what products GM has to aid in the eliminating...
- Vehicle Recalls
- Equipment: electrical: radio/tape deck/cd etc.
- Equipment: electrical: radio/tape deck/cd etc.
- Programming And Activation Of Replacement OnStar Modules.
- This informational bulletin advises the technician to update the Onstar from an analog system to a digital...
- This informational bulletin provides the technician with information on what E85 fuel may due to a non E85...
- This informational bulletin is to assist with the identification of issues that are not considered...
- This informational bulletin explains condensation in exterior lights and replacment guidelines for...
- Equipment: electrical: radio/tape deck/cd etc.
- Electrical system: software
- Canadian Customers Unable To Place Calls In The United States
- Information On Requests To Add OnStar Bluetooth Option.
- Electrical system: software
- Refinishing Aluminum Wheels
- Equipment
- Underbody Component Corrosion The following information may be helpful when addressing underbody component...
- This informational bulletin provides directions on submitting different PIRs
- This informational bulletin provides information on how to save fuel and proper maintenance without using...
- Electrical system
- Equipment
- Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
- Electrical system
- This informational bulletin provides information on key codes security rules and information on GM key...
- This informational bulletin provides information for Engine Squealing Type Noise on Start-up or Vibration...
- This informational bulletin provides a revision for 11-00-89-005D to add additional Mandatory Minimum...
- This informational bulletin provides a revision for 05-08-48-001B to add 2010-2014 model years and update...
- Electrical system: instrument cluster/panel
- This technical bulletin provides Warranty Administration
- This technical bulletin provides a revision of 99-04-20-002G to add 2013-2014 model years.
- This warranty administration bulletin provide policy information on clarification of use-dealer...
- This informational bulletin provides information on the appearance of chromed aluminum wheels due to...
- Electrical system
- This informational bulletin provides information pre-painting/cleaning process for TPO plastic fascias.
- This warranty administration bulletin provides information on the Clarification of Use for Dealer...
- Electrical system
- Engine and engine cooling
- Wheels
- This informational bulletin provides information regarding the aftermarket device interference with onstar...
- This informational bulletin provides a step by step procedure on how to properly use the GM chemicals to...
- Power train: axle assembly
- This warranty administration bulletin provides information regarding customer concerns not duplicated and...
- This informational bulletin provides information and rules for GM keycode look up applicationa dn the key...
- This informational bulletin provides a single point reference and strategy document to aid in reducing...
- This informational bulletin provides a list of newly released PI and Bulletins in regards to recent...
- Service brakes
- Electrical system
- Electrical system
- Equipment adaptive/mobility
- This warranty administrational bulletin provides information on Clarification of Use
- Repeat rear blower motor failure or inoperative
- Gm: there are seat belt problems: difficulty latching and unlatching buckle
- General motors: information provided by bulletin for all 2012 and prior general motor trucks and passenger...
- General motors corp: special coverage adjustment; analog onstar deactivation.
- Buick chevrolet gmc oldsmobile service campaign: special coverage adjustment - fuel tank modular reservoir...
- Gmc: fluid leak from transmission oil cooler lines due to corrosion
- Buick chevrolet gmc service campaign: special coverage adjustment-analog onstar deactivation
- Gmc: fuel gauge fluctuation in park or neutral, causing the low fuel light to illuminate.
- Buick cadillac chevrolet gmc hummer oldsmobile pontiac saab saturn service campaign: special coverage...
- Rattle, clunk, pop, snap noise from front and/or rear suspension while driving over rough, uneven, wash...
- Eaton locking differential chatter shudder noise on turns, equipped with a locking rear differential rpo G80
- Intermittent boom, rumbling noise at highway speed
- ABS, red brake ,svc and 4WD light on HVAC blower inoperative
- DTC C0327 with or without additional dtc's setting
- Boom/rumbling noise at highway speed nj
- Center high-mount stop lamp (CHMSL) applique loose (re-tape applique) tt updated 11/02/07 nj
- Release of steering gear stub shaft bearing kit for service
- Lights flicker erratic operation of vehicles electronics
- ABS light on, dtc's C0265, C0201, U1041 set and/or loss of communication with brake module
- Doors hard to close
- Horn inoperative at times
- Multiple driveability symptoms of long or hard starts, chuggle, rough idle and light or intermittent...
- Liftgate glass will not lock unless lock is press a second time
- Bind or shudder on turns
- Whine noise from rear axle
- 4WD inoperative and or erratic fuel gauge and or diagnostic trouble code's
- Misfire, bump or multiple bumps after a 1-2 upshift
- Service engine soon (SES) or check engine light on, DTC P0526, P0480, P1481, and P1484 set
- 4.2L LL8 engine flashing and/or MIL/ses light
- Rear liftgate binds, improper fit
- Wet front floor carpet
- Proper connection information to avoid blown 125 amp fuse and various interior electrical system...
- Ses light after internal engine repairs due DTC P0016 or P1345
- IPC, interior lights and/or headlamps flicker
- Revised liftgate lock cylinder replacement
- Operating characteristics of the electro-viscous (EV) fan clutch and diagnostic tips for cooling fan...
- P0300 due to random misfires not felt - possible accessory pulley
- Information on avoiding front seat belt retractor jamming when storing seat belt
- Vibration felt and heard at low RPM during parking lot maneuvers
- Electronic transfer case unable to complete shift
- Anti-lock brake system (ABS) light on, diagnostic trouble codes (DTCS) C0265, C0201, U1041 set and/or loss...
- Wiper/washer will not shut off or other possible issues
- No crank no start no diagnostic trouble codes
- Supplement to campaign 04087 / screws break in the tail lamp housing
- 4L60E, 4L65E replacement valve body gaskets does not seem to fit
- Engine is hard to start after filling the fuel tank
- Ping, pop or click noise from under the rear
- Automatic headlamp defeat inoperative after BCM replacement
- Information on use of bolt extractor tool kit part number EN-47702 for removing broken cylinder head or...
- Diagnosis of cracked or broken transmission case
- Hiss/rush noise from steering (STRG) column area
- Ignition key will not remove from ignition lock cylinder
- Intermittent malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) C0374 or erratic 4WD/AWD...
- 1999 - 2005 gen II cold engine misfire at idle with possible P0171 and/or P0174
- Revised front brake caliper bracket mounting bolt fastener tightening specification
- Unable to achieve alignment specifications after campaign 01034
- Sir light on steady after bulb test and no diagnostic trouble codes (DTCS)
- 4WD models with noise, vibration on dry pavement
- Headlamps flicker or dim while driving
- Heated seat operation clarification
- Engine no crank no start with possible (DTCS) diagnostic trouble codes P0116 and/or P1682
- A rough idle, service engine soon light, reduced engine power and diagnostic trouble codes P0507 and P1514
- Application of horn at horn pad inoperative
- Fuel tank inlet check valve fracture
- Cargo cover handle broken
- Diagnostic aids for diagnostic trouble codes P0440, P0455 and/or P0442 - evaporative emission (EVAP)...
- Diagnostic information on headlamps flicker or momentarily dim while driving
- Exhaust moan at idle or parking lot maneuvers
- Reduced power light on and diagnostic trouble code P1680 P1221 and or P1271 stored in the powertrain...
- Unlocking liftgate latch
- Installation of a power steering hose to a new steering gear
- Steering noise when turning
- 125A mega fuse opens when attempting to jump start
- Misfire at idle cold and possible P0171 and or P0174
- Anti brakes system brake light and or service brake message with diagnostic trouble code C0238
- Rear parking brake shoe retaining spring clip service kit for drum-in-hat (DIH) equipped vehicles
- New essential tool for HVAC mode door actuator replacement
- Reduced engine power message and/or check engine light with any combination of the following diagnostic...
- Outside rear view mirror moves in the wrong direction compared to the switch
- Diagnostic trouble code C0327 with or without additional diagnostic trouble codes setting
- Repeat front axle fluid leak
- Erratic operation of personalization with ignition cycle
- Intermittent boom, rumbling noise and / or disturbance heard in passenger compartment while driving at...
- Revised steering wheel replacement procedure
- Blower speed changes on its own
- Cylinder liner replacement information - inline truck engines
- 4WD switch indicator lights flashing, 4WD inoperative, diagnostic trouble codes C0327, P0550 set
- Pop or snap noise from the rear of the vehicle during aggressive acceleration or deceleration maneuvers
- Tail lamps/stop lamps product field action announcement
- Engine stalls when air conditioning is turned on at idle
- Washer motor for the front wipers continuously runs while the key on
- Tail lamp that may become inoperative prematurely
- Tick noise at idle
- Paint chipping behind front wheels/front of rear wheels, damaged lower door/cladding and rocker panels
- Information on correct piston usage
- Rear license plate pocket gasket loose or out of position
- Tail lamp/stop lamp(s) may become inoperative
- Fuel gauge fluctuation in park or neutral
- Squeak, squeal or whistle noise from front axle
- Various interior electrical concerns, ip gauges/lighting inoperative, HVAC controls inoperative, blower...
- Front or rear side door glass scratched
- 4L60E/4L65E intermittent neutral condition while accelerating from a stop or while driving
- Special policy adjustment - tail lamp/stop lamp inoperative
- Tail lamps/stop lamps
- Higher than normal engine coolant temperature gauge readings
- Vehicle is difficult to fill with fuel or filling station pump shuts off before tank is full or fuel spits...
- Release of rear transmission mount separate from exhaust mount
- Rear wiper does not clean rear window
- Automatic dual zone HVAC battery draw
- Higher that perceived normal engine coolant temperature gauge readings when operating the vehicle in very...
- Water seep into the windshield wiper module
- New cylinder bore liner/piston sleeve replacement procedure
- Oil life system reset procedures-trucks
- Tail lamp circuit board now available for service use
- Front fascia wavy
- Rattle noise under hood
- Liftgate glass unlatches on rough/bumpy road surfaces
- Rear license plate pocket parts new available individually
- On-board diagnostic (OBD) system improvements - service engine soon light on, diagnostic trouble code...
- New design oil pick up tube and front cover
- Delayed engagement of front wheels during a slip condition
- Revised rear brake caliper bracket mounting bolt fastener specification
- Inoperative 4WD/AWD lamps, inoperative 4WD/AWD system
- Poor heater performance - 2ND and 3RD row seats
- Inadequate HVAC for passengers seated in the second and third row
- Water CAN enter the windshield wiper module causing a short circuit or corrosion of components while in use
- Diagnostic information for intermittent vehicle no crank dead battery
- Engine knock noise initial startup in cold ambient 10 degrees centigrade/50 degrees fahrenheit
- Engine oil leak at intake gasket
- Rattle noise and/or transmission fluid leak from transmission cooler line contact with catalytic converter
- Radio displays calibration error after replacing radio
- Perceived high engine RPM transmission slip, delayed upshifts on cold start
- No 2ND, no 4TH and no reverse
- Slip condition in 2ND, 3RD or 4TH damaged 2-4 band 3-4 clutch on the 4L60E/4L65E automatic transmission
- Vehicle difficult to fill with fuel/ filling station pump shuts off before tank full
- Vibration noise from under hood, sounds like sheet metal vibrating
- Under hood fuse block - 125 amp mega fuse blown
- Tech 2 engine data incorrect- gen l-terminal signal command data parameter
- Diagnostic trouble code P0130
- Diagnostic trouble code B1000
- 4.2 LL8 engine diagnostic trouble code P0016 or P1345 with no driveability symptoms
- 4.2 4L60E engine cooling fan contacts shroud after replacing radiator
- Diagnostic trouble codes P1271, P1275 low power
- Intermittent no crank no start
- 4L60E, 4L65E forward and low reverse waved steel clutch plate appearance change
- Oil pan drain plug threads - information
- Clunk, rattle noise from front of vehicle over bumps
- Diagnostic trouble code (DTC) P0171
- Diagnostic trouble code (DTC) C0327 with or without additional diagnostic trouble codes (DTCS) setting
- Onstar system is attempting and/or completing phone calls which the operator of the vehicle did not initiate
- The liftgate or liftgate glass binds when opening or does not open completely because the center high...
- Automatic volume feature diagnosis on the uqa bose radio
- Tccm will not program through tis
- Noise from instrument panel cluster tachometer
- Anti-lock brake system (ABS) light on, red brake light on, service 4WD light on, HVAC blower motor inoperative
- Noise from front of vehicle over bumps or under light acceleration
- 4.2L LL8 engine rough idle - run possible P1345 or P0016
- Information on resurfacing the park brake portion of the rear brake rotor
- Ping, pop or click noise from the propeller shaft
- 4L60E, 4L65E intermittent neutral from a stop or steady speed
- Engine misfire due to injector fretting corrosion
- Calibration for improved transfer case operation in AWD mode
- App sensor 2 and/or tp sensor 2 signal circuit voltages drop
- Intermittent lack of heat in 2ND and 3RD row seating positions
- Various electrical concerns
- 02-04 4.2L LL8 diagnostic trouble code P0171
- When using voice recognition dialing, some numbers or commands may not be understood by the system...
- Front brake noise or squealing on the first few light brake applies after the vehicle has sat for a long...
- High coolant temperature gauge readings during low RPM operation
- Breakpoints for release 5 for the F1 (gen 5) equipped products
- 99 through 05 year vehicles, equipped with three-button onstar systems
- Cruise control disengages after accelerating
- Location of the headlamp driver module (HDM)
- Rattle noise in front suspension over small bumps, clunk or loose lumber type noise over uneven/wash board...
- Inside rear view mirror does not display ambient temperature with CJ2 option
- Reduced power light on and diagnostic trouble code P1680 P1221 and/or P1271 stored in the power control module
- Chmsl applique contacts roof when opening rear gate/glass
- Upper and lower intermediate shaft parts restriction
- Broken head bolt repair
- Only replacement of evaporator core or pipes for rear HVAC
- Diagnostic trouble code P0171
- Operation of rear glass release key cylinder
- Multiple electrical concerns and diagnostic trouble code U1064
- Driver and/or passenger front seat belts lock up in retracted position
- Automatic dual zone HVAC battery draw supplement to 02-01-39-007A
- Rattle type noise coming from under the vehicle
- Cold idle fluctuation at altitude, hesitation on acceleration or 1-2 upshift delay
- Rattle from front of vehicle
- Rattle noise underneath the vehicle or an automatic transmission fluid leak
- 4.2L LL8 engine stall while running evap diagnostics
- Intermittent dead battery
- Rear brake light bulb out
- Poor performance from a stop in 2WD, auto or 4WD hi
- Cold idle stall that occurs during or immediately after evap diagnostics are run
- 4L60-E automatic transmission oil pump first and second design identification
- Intermittent hesitation, stumble or idle stall within minutes of starting after the vehicle has been...
- Memory power seat inoperative
- Intermittent hesitation, stumble or idle stall after soak, harsh 1-2 shift, slipping 1-2 shift followed by...
- Intermittent dead battery
- Tail lamp circuit board part number information
- Daytime running lamp feature cannot be disabled after body control module (bcm)replacement
- Availability of replacement parts for outside rearview mirror
- Availability of replacement mirror actuator
- This vme states that gm has decided that certain vehicles do not comply with federal motor vehicle safety...
- Perimeter seal/gasket pulls away from license plate housing and/or excessive adhesive around gasket
- Radio and / or HVAC systems change while driving
- Service engine soon light on, diagnostic trouble code P0135 set
- Windshield washer nozzles being clogged ir aimed improperly
- Rear license plate pocket seal being rolled over due to improper installation
- Unusual vibration felt at idle or at very low RPM during parking lot maneuvers
- Power window motors occasionally or intermittently inoperative
- Cracking of an engine cylinder bore liner resulting in engine noise, poor performance and/or stalls with...
- Air conditioning (a/c) inoperative / intermittent, air conditioner blows warm air
- Programming of replacement onstar vehicle communication and interface modules (VCIM)
- Lift gate glass hard to close
- Parts availability for sunroof repairs
- Special policy adjustment 03019 - 4.2L bore liner cracking resulting in engine noise, poor performance,...
- Air conditioner low pressure cycling switch intermittently inoperative or stuck open/ intermittent air...
- Product field action 03012
- Intermittent condition at vehicle start up in which the instrument panel cluster may not power up...
- Instrument panel cluster gauges inoperative
- Diagnosing poor air conditioner performance - air conditioner stops blowing cold, air conditioner cycles...
- Headlamp low beam bulb socket now available for service use
- Idle fluctuation and/or hesitation on acceleration
- 1-2 upshift delay condition at throttle openings
- Unable to disable the daytime running lamp feature when following the procedure in the owner's manual
- The lift gate, or lift gate glass, binds when opening or does not open completely because of center high...
- Squeak, rub / scrub type noise in steering column
- Shudder, rocking motion, binding, feels like vehicle is tuck in 4WD when turning at low speeds
- Service 4WD indicator illuminated, diagnostic trouble code (DTC) B2725 set, transfer case selector switch...
- Information on replacing a full frame assembly on a collision repair
- Engine overheat condition with little or no heater output
- Front brake noise or squealing after the vehicles has sat overnight
- Programming / re-programming, setup, configuration of modules
- Error messages when programming a new module
- Buzz or rattle noise coming from the front end of light accelreation at 25 to 45 miles per hour or over bumps
- Revised wiper inoperative - rear diagnostic
- Revised differential carrier assembly replacement
- Revised compressor oil balancing procedure
- Whine, buzz, generator whine, whine type noise heard on acceleration
- Discoloration / fading of door glass molding
- Instrument panel cluster (IPC) gauges read zero at times, gauges inoperative at times
- Front fascia wavy
- Servicing the rear tail lamp bulb or socket assembly
- Idl emerging issues broadcast covering topics such as the onstar, california emissions, an overview of the...
- Outside rearview mirrors do not return to their original position after using curb view assist feature
- Interference with center console rear auxiliary power outlet cover and rear seat cushion
- Exhaust noise / leak
- Oil leak at oil pressure switch
- Shudder, rocking motion, binding, feels like vehicle is stuck in 4WD (crow hop) when turning at low speeds
- Squeak noise in steering column
- Outside mirrors do not return to the original position after using the reverse tilt curb assist feature
- Tapping noise and installation concerns with the molded hood protector
- HVAC system inoperative for a drive cycle, poor HVAC system performance in high ambient temperatures
- Passenger seat shoulder belt too tight or cinches up
- Some customers may comment that the front fascia on the vehicle appears to be loose
- Some customes may comment that the vehicle will not start and / or the door electrical functions may be...
- Some customers may comment on an intermittent booming, rumbling noise and / or disturbance heard in the...
- Customers may comment that the service four-wheel drive / all-whell drive indicator illuminated or the...
- Concerns with ext and xl models exhibiting inoperative rear HVAC controls and / or diagnostic trouble code...
- Some customers may comment that the 4WD/AWD indicator lights on the selector switch do not work or the...
- Some ext owners may comment that the emblem on the rear side doors reads ltz
- Some customers may comment that at times all the instrument panel cluster gauges are inoperative or read...
- Some customers may comment that the assist step skid pad is warped
- Information on diagnosing electrical wiring connector problems on 2000 through 2001 u-vans as well as...
- Product safety recall 02016 regarding a condition where a fuel filter fitting may become disconnected
- Subject regarding proper position and installation of roof rack cross rails to reduce wind noise
- Information regarding the on-star module cover retaining tab breaking
- Some customers may comment that the headliner sags at the rear of the sunroof opening
- Subject regardng the addition of diagnostic trouble code U1500 for generation 4 onstar
- Subject regarding change to flywheel to crankshaft attaching bolts
- Information on installing roof rack crossbows reversed to reduce wind noise
- Subject regarding vehicles incorrectly built with ltz badges on the b-pillars
- Information pertaining to the underhood upper radiator support baffle or beauty cover
- Some customers may comment that the paint on the liftgate around the edges of the license plate housing or...
- Some customers may comment that the outside rearview memory mirrors may wander or may not go back to a...
- Information pertaining to revised harmonic balancer
- Subject regarding gm oil life system
- Subject regarding engine damage of replacement engines attributed to debris from the intake manifold being...
- Some owners may comment on the service 4WD indicator illuminating, in addition to diagnostic trouble code...
- Information on proper programming for the transfer case control module
- Concerns with no start, turn/hazard, interior lamps, driver information center (DIC), radio, theft alarm,...
- Some customers may comment that the heater does not warm the driver's feet
- Subject regarding radio speaker noise with brake applied
- Subject regarding bulletin 010604052 on board diagnostic (OBD) system improvements upgrade
- Subject regarding service engine soon light on, delayed transmission downshift and/or excessive fan noise
- Subject regarding diagnostic tips for slipping or missing second, third and/or fourth gear
- Some customers may comment that the service engine soon lamp is illuminated, no 3RD and 4TH gear, the...
- This bulletin is being issued to clarify the torque specifications and the proper tightening sequence for...
- Customers may indicate a concern of a front axle seal high-pitched noise coming from the front of the...
- Information regarding click or ratchet type noise from outside rearview mirrors
- Service engine soon lamp illuminated, incorrect transmission shifts, poor performance of engine,...
- Some owners may comment on the service engine soon lamp being illiminated, a delayed transmission...
- Vehicles may experience an inoperative cigarette lighter
- Brief information regarding the availability of an enhanced calibration for engine cooling fan noise and...
- On some vehicles, the calibration of the active transfer case control module may cause insufficient high...
- Safety recall regarding the calibration of the active transfer case control module or a range shift collar...
- Information on clean neutral test for 4-WHEEL drive vehicles invovled in recall bulletin 01064 transfer...
- Some vehicles may exhibit an intermittent 1-2 shift shutter or possible 1-2 harsh shift condition
- Information regarding headlight or instrument panel dimming or flicker condition
- Some all-wheel drive or four-wheel drive vehicles may exhibit a bump or surge that CAN occur while the...
- Information on recalibrating vehicles exhibiting a service engine soon lamp on, a delayed downshift of the...
- Information regarding engine soon lamp being illuminated for diagnostic trouble CODE,P0014, P1683 or P0116...
- Concerns with understanding the driver information personalization language options
- Memory power seat inoperative
- Information regarding unresolved DTC P0014, false DTC P0116 and P1683
- Information regarding delays in transmission downshifting
- Information regarding fan noise
- Subject regarding calibrations available to correct unresolved diagnostic trouble code P0014, delays in...
- Information regarding calibrations available to correct delays in transmission downshifting and complaints...
- Unable to connect to onstar following a dropped cellular call during an onstar configuration attempt
- Customers may complain of an anti-lock brake system (ABS) or brake indicator light illuminating or a...
- Customers may complain of 4-WHEEL drive light illuminating
- Information on programming of replacement onstar vehicle communication and interface modules (VCIM)
- Information regarding LL8 engine labor operations
- Information regarding roof mounted luggage carrier bow positioning
- Information regarding flywheel holding tool j 44226-3A modification or replacement
- Campaign information to replace the left and the right front lower control arm brackets
- This message applies to a possible delayed engagement of the transmission that may occur after the vehicle...
- Subject regarding exchange program, bulletin number 010420003 implemented for the 2002 eight inch ring...
- Information on using the seat and should belt extenders
- Subject regarding tech 2 information on 4L60-E shift adapts
- Information on headliner replacement, headliner harness routing, and replacing or servicing the sunroof on...
- Subject regarding rear axle exchange program
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