Owner-reported complaints naming the engine system, filed with NHTSA
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Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components. Every record below is an owner-reported complaint about the 2022 Chevrolet Trailblazer submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 18 reports on file name it.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Shown in the owner’s own words, exactly as filed
I was driving down the highway when the 3 bolts holding the exhaust under the car broke off. My exhaust was dragging down the highway until I could safely get pulled over. The bolts are welded in of course so you can’t just put new bolts in you have to replace the whole catalytic converter, which is a pain to do unless you take it to the dealer and pay $2000.
All 3 bolts that connect my tailpipe underneath my car failed. This caused the tailpipe to disconnect from the car, meaning I was pushing the pipe as I drove. Luckily it failed when I was at an intersection, and I heard the noise. I was able to drive slowly into a parking lot and disconnect the exhaust for a repair. However, if I had been traveling down a highway when it occurred the pipe surely would've hit a bump and then jammed the rest of the exhaust back up into the under carriage of the vehicle and perhaps causing an accident. I did email the dealership I purchased the vehicle from, but they were unaware of an issues on the vehicle. However, from searching online, there are other 2022 Trailblazer owners experiencing the same issue. There were no warning lights before during or after.
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.
The studs that connect the front exhaust to the rear exhaust and muffler rusted and the exhaust fell down and crumpled up. Basically tore the exhaust off of the car when this happened.
Purge pump failure at 33442 miles, should be included in customer satisfaction program #N242484740. Dealership denied it.
Vehicle experiences intermittent loss of acceleration at highway speeds. While driving at highway speed or going uphill, up ramp, down hill, down ramp the engine loses power and enters reduce power mode, making it difficult or impossible to maintain speed or safely merge with traffic. The issue is unpredictable and has occurred despite prior repair attempts. Vehicle is covered under a GM special turbo warranty for a known defect. Warranty came out Oct 2022, Due to the loss of power the vehicle is unsafe to operate and is currently at the dealer.
The three bolts at the flange attaching the muffler to the upper muffler sheared off due to rust and the whole rear muffler fell off when driving the car on an interstate. Car is 3 years old and at the time had 65,000 miles. The bolts used are of poor quality, and to make matters worse, there is no exhaust hanger near this flange so the muffler is supported at the front by just this flange. Poorly designed by GM.
The exhaust and muffler completely detached from the catalytic converter/exhaust manifold while driving down the road. If we were driving at a higher rate of speed, the exhaust pipe could've caught on any imperfection on the roadway and shot the rear end of the vehicle up and then potentially caused an accident/death. This has happened to many I have discovered upon further research and is a common problem with the vehicle according to the dealership. Vehicle has been towed to the dealership to be inspected and/or repaired. Zero warning signals, lamps, or messages.
The contact owns a 2022 Chevrolet Trailblazer. The contact stated while driving approximately 35 MPH, the check engine warning light illuminated. The contact drove the vehicle to a dealer to be diagnosed and it was determined that the Evaporator Emissions Canister Pump had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was informed of the failure and referred the contact to the NHTSA Hotline to report the failure. The contact researched online and related the failure to manufacturer Special Coverage Number: N242441120 (Evaporative Emissions Purge Pump - Engine and Engine Cooling); however, the vehicle was not covered under the special program. The failure mileage was approximately 62,500.
The check engine light and other error codes are on. The vehicle would run fine and then the engine would go into 1/2 power and go slow while driving. This has happened other times too. It has been in the shop and the dealership and GM do not know what is wrong with it. It has been there for almost 2 weeks.
Noise only when cold at front tire passenger side Nosie at front tire passenger side while steering. Check engine lite code PO299 Turbocharger/supercharger underboost-engine power is reduced. Replaced tire at 24600 miles. While driving at 65 mph, the forward collision avoidance system activated, and the car stopped at 65 mph. It happened 5 times that car fully stopped, and numerus time I get forward collision activated but then nothing happens. Imagine on freeway from 65 to 0 brakes by itself. Hard shifting and body shaking while accelerating. Hood is shaking while driving on freeway.
Alerting to shift to park and not turning off while vehicle is already in park
Bolts/studs that attach/hold exhaust system together rotted/rusted/broke after only 2 years of use causing entire exhaust system to become detached from vehicle.
We own a 2022 Chevy Trailblazer and we have experienced the “shift to park” issue more times than we can count. We receive the “shift to park” message on the dash screen after the car has been shifted to park and we attempt to turn the vehicle off. This problem has caused me to be late to my job on numerous occasions and late to an exam that determines my graduation at school. Many users report being able to just shift through the gears a couple times or wiggling the gear shift and it shuts off, but that is not always my case. I have, on a few occasions now, had to remove my gear shift knob and panel completely, locating the park switch and manually bending it to recognize that my car was in park. Doing this will typically subside the issue for about a week, but no longer than that. We have tried to have the dealership see the message when taking it in for other things, but it never seems to happen when they are watching. There were no other issues with this vehicle before this started happening. We purchased the vehicle in February with about 44,000 miles. This issue has instilled fear in me every time I go to shut my vehicle off never knowing if it will actually shut off or not. Dramatic or not, it has caused unwanted anxiety and too many mental breakdowns that were not needed. This needs to be addressed and fixed ASAP!
“Shift to park” alert. It started after the car had 29,000 miles. It would occur occasionally but on Jan 4th of this year, I had to restart and move my car 11 times in order for the alert to be cancelled and I was able to shut off my car. I have been told there is no parts available by the dealer who has my car and they don’t know when the work will be done!
The contact owns a 2022 Chevrolet Trailblazer. The contact stated while starting the vehicle, the check engine warning light illuminated. The vehicle was taken to the dealer and the dealer stated that the purge valve needed to be replaced. The vehicle was repaired. On another occasion, the contact experienced a flat tire due to a nail in the tire. While the driver side rear tire was being removed the Lug nuts and the bolts on the axle were damaged. The vehicle was taken to the dealer and the dealer stated that the CV axle needed to be replaced. The vehicle was not repaired. The manufacturer was not contacted. The failure mileage was 400.
Check engine light keeps coming on. Hard shifting. Takes too long for brake to engage. Fuel injector replaced. This car is only 3 months into service.
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.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Categories with enough reports to have a page of their own
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