Chevrolet Trailblazer overheating problems

Filed Jul 20, 2026 · Electrical · NC · 1 injury

purchased a brand new vehicle in 2022 Since purchase I have had multiple issues with said vehicle for which I will list. I understand vehicles will and can have issues but there is no excuse for all the problems I have had to deal with a new vehicle. A. Muffler has fallen off 3 times and replaced all 3 times During the leakage part of why it was not fully disconnected every time I was driving the car I was inhaling the fumes because the brake was under the seat of the car driver side B. Emergency Blinkers on dashboard had to be replaced because they overheated and melted C. The vehicle has 13,000 miles And now I am getting error messages that say the car needs to be put in park and won’t shut off and just keeps having a buzzard ring when the car is actually in park

Filed Jun 15, 2026 · Engine · OH

The two components that failed were the water pump and the coolant control valve which caused the engine to overheat, resulting in me having to pull over along the side of a busy highway putting me at risk for injury while the vehicle cooled down. It would be available for inspection upon request. This was dangerous mostly to myself due to having to pull over on the side of a busy highway and wait until the vehicle could be somewhat ok to be driven the rest of the way home. I had to drive very slowly home with my hazards on at a very low speed. Vehicle was brought to a nearby Chevy dealership the following morning. They had the vehicle for two days and claimed they could not get the problem to present itself, however, within five minutes of me driving it off the lot it overheated resulting in having to pull over again on a busy highway. An independent service center had the vehicle and diagnosed it initially as an intermittently failing water pump. This repair did not resolve the issue 100% as the vehicle began to slowly overheat again within 18 minutes of highway speed driving. Car was towed back to repair shop from my place of employment. They were able to get it to present the issue and diagnosed it as the coolant control valve. This has so far appeared to resolve the overheating issue. The vehicle has not been inspected by the manufacturer, police or insurance rep/others. The only warning that came up was on the info screen above the steering column advising me the engine was overheating and was in idle. Immediately upon seeing this I pulled over to prevent any damage. Temp gauge was all the way in the red. Fan was blowing hard. This has never happened previously and there were no other warning lights of any kind on the dash to indicate an issue. This incident happened on 6/2. Please be advised, this vehicle has since been repaired and has ran me $2300 as it is out of warranty.

Filed Apr 16, 2026 · Engine · TX

My vehicle started overheating out of no where towed it to the shop, it’s been there for 2 weeks they’re actively waiting for a manufacturer engineer to tell them what to do because they can’t figure out how to fix it. On top of that there have been a lot of overheating issues cause by different parts on the vehicle. There was another trailblazer in the at the same time as mine that was also overheating! A 2025 vehicle should not be having issues at this point gmc should just take all the trailblazers off the market! Also they need to change their manufacturing warranty on rentals because not one person should not have to pay out of pocket for a rental when it’s the manufacturers fault!

Filed Sep 5, 2025 · Engine · CA

Coolant Vavle malfunction Engine could overheat Yes Manufacturer No warning lights..check engine light came and I had the car diagnosed

Filed Jun 22, 2024 · Engine · MI

Coolant control valve causes car to overheat leaving car and passengers stranded on the side of the road. This is dangerous as it increases the risk accidents. The part is on back order since most of the vehicles with the original part are defective. Something needs to be done to correct this problem!

Filed Jan 25, 2022 · Brakes, Engine · 3,051 miles · WI

The contact owns a 2022 Chevrolet Trailblazer. The contact stated that while operating the vehicle, the engine fans were activated however, the engine overheated. The vehicle was taken to the local dealer who diagnosed the engine thermostat as faulty. The thermostat was replaced, and the failure was remedied. Also, while driving the vehicle would jerk and hesitate while changing gears. The cause of the failure was not yet determined. The contact was informed by the dealer that the failure was a transmission issue. No further information was available. Also, while driving 27 MPH, the service brake system failure" message suddenly displayed, and the brake pedal was hard while pressed. The parking brake was activated. Moments later the message "power steering failure" displayed and the steering wheel was difficult to turn in either direction. The vehicle was towed to the dealer who diagnosed that the brake master cylinder was faulty and needed to be replaced. The brake master cylinder was replaced, and the braking and steering failures were remedied. The manufacturer was not yet notified of the failure. The failure mileage was 3,051.

Filed Jul 26, 2019 · Lights · 173,400 miles · GA

Daylight/headlights sometimes do not turn on upon starting truck and also have shut off seven different times while driving at night forcing me to drive with fog lights and high beams on endangering not only the oncoming traffic, but my family which includes a 5 and 9 year old child. As stated in the recall and which is the exact action occurring not every time but (7 times)1 time alone is enough to be a major safety concern to me and my family, the headlamp driver module (hdm) may overheat and fail, causing the headlamps and daytime running lights to not illuminate.this is the recall on this issue currently which 2006-2007 chevy trailblazers, yet hendricks chevy says that my vehicle is not included in this recall. This is obviously a huge safety issue especially when my family?s safety and lives are seriously in danger every time we travel or drive at night due to the recurring issue of the lights not being reliable at all times of turning on due to an overheating issue, that once again is occurring in these models yet my VIN is not a part of the recall. The most recent occurrence of this issue was on july 12, 2019! Please address this issue to have other VIN numbers apart of this recall with whom ever necessary so my family?s safety as well as other driver?s safety are not at risk every time we get into our 2006 chevy trailblazer! Again the main issue at hand is headlamps that do not illuminate reduce the driver's ability to see the roadway and reduce the vehicle's visibility to oncoming vehicles, both of which increase the risk of a vehicle crash. Regards, [xxx] information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6).

Filed Jun 12, 2018 · Engine · 180,000 miles · MI

Overheating, replaced water pump thermostat clutch fan, radiator is good, fuel valve and clutch fan all new, still overheating when it's hot or city driving with stop and go. Mechanic reports he cannot find anything causing it. Found info on 2004 PCM clutch fan setting but, not 2003

Filed May 24, 2018 · Electrical · FL

Control panel on drivers door is no longer functional, during a heavy rainstorm I got out of my truck, closed the door and ran to my house. The next day the controls no longer worked. This is not the first time I've left my vehicle while raining but the first time the controls stopped working. This was a recall item in other years 2006-2007. Chery does not recognize this being the same issue in the 2005 model. Chevrolet trailblazer recall - #13v248000. Fluid may enter the driver's door module, causing corrosion that could result in a short in the circuit board. A short may cause the power door lock and power window switches to function intermittently or become inoperative. The short may also cause overheating, which could melt components of the door module, producing odor, smoke, or a fire.

Filed May 19, 2017 · Electrical, Lights · 95,000 miles · NV

When driving vehicle both left and right low beam headlights go out. The first time it happened was when I was driving long distance in the dark. Had to drive with my high beams on for the rest of the trip. There is no specific time frame, but generally it happens anywhere from 10- 30 minutes of driving. I suspect it is heat related. I have changed the headlight relay #46, bit it only fixed the problem for a week. Again the lights will go out after driving several minutes. I noticed there is a recall for a similar issue on the 2006 chevy trailblazer. Could this be the same problem with my vehicle. There are also multiple forums explaining the same exact issue with early 2000 model trailblazers. This issue happened approx 6 months ago. Last week we ran into another problem. Our ABS light comes on periodically. Like the headlights going out, the ABS light comes on after driving the vehicle for a certain amount of time anywhere from 10 minutes to 30 minutes. Again, I feel it electrical components/wiring is overheating and causing these issues. I feel there should be a safety recall for this this issue as it is affecting hundreds of customers USA wide.