2020 Toyota 4RUNNER technical service bulletins
158 technical service bulletins and manufacturer communications cover the 2020 Toyota 4RUNNER.
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Abnormal noise that may be described as cracking, clicking, or creaking from the driver and/or passenger...
- Obsolete notice
- Some 2018 – 2024 model year Toyota vehicles equipped with a Premium Audio with Dynamic Navigation System...
- Condition in which a musty odor is present
- The air conditioning dye injection tool kit has been developed to aid in identifying the location of air...
- To assist with the early detection and early resolution of audio related concerns you may be asked to...
- Some 2018 – 2024 model year Toyota vehicles equipped with a Premium Audio with Dynamic Navigation System...
- Cracking noise from the driver and/or passenger front seat cushion track
- Acid rain results from rainwater or other airborne moisture that become acidic due to industrial chemical...
- To prevent brake rotor rust from forming during transportation and storage, wheel film will be used...
- The condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix...
- Toyota vehicles are currently protected with RapgardTM protective film designed to protect the horizontal...
- Vehicles may occasionally be subjected to contamination by airborne iron particles shed from railroad...
- Some customers have expressed concern that the wireless functions of their Key Fob stop working
- Condition in which a musty odor is present
- This Service Bulletin provides updated non-electric water pump leak inspection and diagnostic tips for...
- Toyota vehicles are currently protected with RapgardTM protective film designed to protect the horizontal...
- This is to advise of various price adjustments that will affect Toyota Genuine Motor Oil and Long Life...
- Some 2018 ? 2022 model year Toyota vehicles equipped with a Premium Audio with Dynamic Navigation System...
- All 2020 ? 2023 model year 4Runner, 2018 ? 2022 model year Sequoia, 2018 ? 2023 model year Tacoma, and...
- Abnormal noise when in Reverse with the wheels at or near full lock due to interference between the tire...
- The air conditioning dye injection tool kit has been developed to aid in identifying the location of air...
- TT: A very small percentage of customers experience operational difficulties with some telematics features...
- Replacement certification labels (the vinyl label installed on the driver door or door post) and VIN...
- The Immobilizer and Smart Key Reset is a feature that allows the registration of new keys when all master...
- TT: To assist with the early detection and early resolution of audio related concerns, it may be requested...
- Some 2018 ? 2022 model year Toyota vehicles equipped with a Premium Audio with Dynamic Navigation System,...
- Condition in which a musty smell is present
- TT: If you see this condition, please create a TAS case and contact TAS for instruction prior to...
- TT: If you see this condition, please create a TAS case and contact TAS for instruction prior to...
- One or more of the following conditions: ?Barge in function defaulted to OFF. ?Limited phone book grammar
- Paint stains after the removal of Rapgard?. The paint stains may appear to be under the clear coat but are...
- Obsolete notice
- Squeal/squeak noise from the front brakes with light to moderate braking
- TT: To improve customer support of telematics connected services features, additional resources have been...
- TT: Vehicle control apps might not operate as expected at times due to preconditions (normal operating...
- TT: Some Toyota vehicles installed with Toyota Complete Maintenance Care (TCMC) brake pads may exhibit a...
- Squeal/squeak noise from the front brakes with light to moderate braking
- TSB This Service Bulletin includes guidelines meant to help determine whether to repair or replace a wire...
- TT: Some customers may experience the inability to activate Remote Connect or Remote Connect becoming...
- POL: This consolidated Tire Warranty Guide contains the complete warranty terms for all brands of ground...
- Following condition: ?Distorted screen when using Apple CarPlay® while making a hands-free phone call
- TT: Some customers may encounter Bluetooth® connectivity concerns such as: ?Difficulty to pair the phone
- TT: When used in conjunction with the Repair Manual, these Blind Spot Monitor, Forward Recognition Camera,...
- Grease leak from the edge of the inboard joint boot of a front drive shaft where the clamp is located
- Condition where the HVAC evaporator drain hose has become obstructed with an insect nest
- Updates to the 2014-2021 toyota universal flat rate manual
- One or more of the following conditions: ?Intermittent blank screen
- Toyota Safety Recall and Service Campaign
- TT: Some Toyota vehicles installed with Toyota Complete Maintenance Care (TCMC) brake pads may exhibit a...
- Paint stains after the removal of Rapgard?. The paint stains may appear to be under the clear coat but are...
- Replacement certification labels (the vinyl label installed on the driver door or door post) and VIN...
- TT: Vehicle control apps might not operate as expected at times due to preconditions (normal operating...
- Following concern: ?Distorted screen when using Apple CarPlay® while making a hands-free phone call
- All 2018 ? 2021 model year Sequoia, Tacoma, and Tundra and 2020 ? 2021 model year 4Runner vehicles are...
- Obsolete notice
- TT: Some vehicles may experience an issue related to the DCM, the following information is consolidating...
- TT: HVAC drain tube is found to be blocked/clogged.
- This Service Bulletin provides updated non-electric water pump leak inspection and diagnostic tips for...
- Gap due to disengagement of the front bumper cover clips and the fender retainer near the headlamp assembly
- 2020 model year Toyota vehicles are equipped with driver side floor mat retainers to secure the floor mat...
- Knocking noise when driving at low speeds over uneven road surfaces (small bumps and dips) in cold conditions
- Some 2018 ? 2020 model year Toyota vehicles equipped with a Premium Audio with Dynamic Navigation System...
- TT: The Toyota Quality group is looking to better understand our customers expectation regarding vehicle...
- Obsolete notice
- TT: The new DCA-8000 Diagnostic Charger may
- TT: Some 2019-2020 model year 4Runner SR5 and TRD Off Road grade models with Dunlop Grandtrek AT20...
- Some 2014
- TT: The microphone circuit passes through the DCM before reaching the radio/navigation system
- TT: Due to the challenges caused by the COVID-19 virus threat, some dealers are experiencing reduced...
- Supersession notice
- One or more of the following conditions: ?Barge in function defaulted to OFF ?Limited phone book grammar...
- Safety Recall and Service Campaign
- All 2018 ? 2021 model year Sequoia, Tacoma, and Tundra vehicles and All 2020 ? 2021 model year 4Runner...
- Long-term or off-site storage requires special care to keep vehicles factory fresh and ready for delivery
- An initialization procedure is required to activate the Entune? 3.0 App Suite Connect for Audio, Audio...
- TT: Some new vehicles may experience the SOS/Telematics functions inoperative during Pre-Delivery...
- TT: Some 2020 model year vehicles may display abnormal Safety Connect operation during PDS or after...
- This Technical Service Bulletin provides procedures to inspect and repair certain model year 2020 Toyota...
- Pre-Delivery Service (PDS) is a critical step in satisfying our dealership?s new car customers
- TT: Some vehicles equipped with Dynamic Navigation may experience a pop-up message notifying them that...
- To prevent paint damage during transportation, the roof rack leg covers are kept inside the vehicle so...
- An initialization procedure is required to activate the Entune? 3.0 App Suite Connect for Audio, Audio...
- TT: Some vehicles may experience a ?New software is not compatible with the system.? Pop-up while...
- TT: Some 2014-2020 model year 4Runner vehicles may experience the ABS Light ON with DTC C0226, C0236,...
- Vehicles may display evidence of a fluid leak or fluid seep from powertrain components
- Revision notice
- TT: In certain cases of leaking air conditioning systems, the root
- Revision notice
- Revision notice
- TT: Some 2020 model year vehicles may display abnormal Safety Connect operation during PDS due to DCM...
- TT: Some customers may experience the Remote Connect becoming inoperative when attempting to send commands...
- Revision notice
- One or more of the following conditions: ? Barge in function defaulted to ?OFF? ? Limited phone book...
- TT: Safety Connect is a vehicle option which requires a subscription fee for the system to be active after...
- Poor sound quality coming from the dash speakers or static/feedback heard by the incoming caller
- TT: Some customers may encounter Bluetooth® connectivity concerns such as: ? Difficulty to pair the phone
- TT: Some new vehicles may experience the SOS/Telematics functions inoperative during Pre-Delivery...
- Pre-Delivery Service (PDS) is a critical step in satisfying our new car customers
- Revision notice
- Revision notice
- TMNA Accessory Sales and Marketing has developed a Toyota paint protection film (PPF) decal (treated with...
- Supersession notice
- TT: The new 12V Battery Warranty Testers (DSS-5000 & DCA-8000) require certain information to generate a...
- A battery in a stored vehicle is subject to conditions that can reduce its performance and life
- During the manufacturing process, tires are mounted on the vehicle as matched sets to help reduce...
- Replacement vin plates.
- Product general information.
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