Chevrolet Trailblazer Complaints

418 consumer complaints on file.

#11708387January 2, 2026
POWER TRAIN
My 2021 Chevrolet Trailblazer has a defect in the gear shifter system that intermittently fails to recognize when the vehicle has been shifted into “Park.” When this occurs, the vehicle displays a persistent “Shift to Park” warning message and prevents the engine from being turned off or the vehicle from being locked. This malfunction creates a safety and consumer concern, as I am unable to exit and secure the vehicle and am forced to remain inside or leave the vehicle running and unattended. The issue interferes with normal vehicle operation and poses potential safety risks, particularly in situations where I need to quickly power down, exit, or secure the vehicle. After a quick internet search, this issue appears to be affecting multiple others with the same vehicle (2021-2023). A prior lawsuit against GM also resulted in a settlement and recall for older model Trailblazers, but unfortunately did not include the newer models that are experiencing the same known issue. • Gear shifter system is malfunctioned, specific reason and/or part is unknown. Vehicle is available for inspection upon request. • Safety risks noted above. • Problem has been confirmed over the phone and via text by local Chevrolet dealership. Only solution offered was to pay over $650+ for a fix that is not guaranteed to fully resolve the error. • Vehicle or component has not been physically inspected by manufacturer, police, insurance reps, or others. • No warning lamps, messages, or other symptoms occurred prior.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11708220January 1, 2026
SERVICE BRAKES, ELECTRICAL SYSTEM
Shift to park message when car is in park - cannot turn off vehicle until message goes away. Car can roll if message is not off. Brakes: intense squeaking
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11708190January 1, 2026
ELECTRICAL SYSTEM
The radio system working with the phone produces a high pitch static noise when trying to make a phone call or when receiving a phone call. This has been reported to the dealership.Mechanics say that chevrolet does not android phones, only iphones and this is causing the problem with the radio system, the Lights will go on and off at a moment's notice whether you're driving when you're driving radio plays when it wants to play like I said you can't receive Or make phone calls in this car, you have to be outside of the car with the car switched off in order to make a phone call, driving down the road in the middle of the night the lights could just go out sometimes for a whole 10 minutes before they come on again, radio does the same thing in and out in and out at anytime, it does not care Is there a fix for these problems. Dealership did not note this problem said it was not a fix and phone needed to be changed, so there is no documentation of the incidence as they happen. Dealership refused to do the paperwork refused to check, it said it was normal because of that Android phone. Chevy does not support an Android phone on their vehicles.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11708084December 31, 2025
UNKNOWN OR OTHER
The rear hatch interior trim that seals the hatch from exterior elements and sounds continuously comes off, even after having dealership to repair/replace. The trim will not remain in place and is a distraction while driving and hearing out of vechile noise. And the winter weather causes car not to maintain a constant heat temp
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11707600December 29, 2025
POWER TRAIN
The contact owns a 2023 Chevrolet Trailblazer. The contact stated that while driving at 68 MPH, the vehicle stalled. The message "Shift to Park" was displayed. The contact managed to pull over to the shoulder of the road, where the contact attempted to restart the vehicle; however, the vehicle failed to restart. The vehicle was towed to a local dealer, where it remained for further investigation. In addition, the contact stated that the vehicle was previously taken to the same local dealer on several occasions. The dealer had previously replaced the battery and the turbo boost. Additionally, the dealer had performed an unknown software update and other unknown repairs. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 44,962.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11706947December 24, 2025
POWER TRAIN, ELECTRICAL SYSTEM
The cruise control system intermittently fails to engage indicating an error with the system. After several random occasions it was finally determined that the issue is related to the brake pedal sensor not determining that the brake pedal has been fully released. It requires having to manually pull the brake pedal up to properly set the sensor to allow the cruise control system to engage. This does not present any clear danger in itself, however, after having the vehicle inspected the manufacturer service center states that the entire pedal assembly has to be replaced because of worn parts and that the pedal may continue to get worse. While the mileage has taken the vehicle out of warranty that covers this issue the car is primarily driven on the interstate with minimal wear and tear on the pedal assembly.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11706946December 24, 2025
ELECTRICAL SYSTEM, STEERING
The vehicle intermittently warns about a Power Steering issue with no other indications to the problem. There are no physical issues detected while driving. The error displays at random times and will reset intermittently. This started occurring at the same time the car constantly indicates that it is not in park when trying to shutoff the vehicle even though it is clearly shifted into park.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11706944December 24, 2025
ELECTRICAL SYSTEM, POWER TRAIN
When parking and trying to shutoff vehicle a warning stating that the car needs to be shifted into park needs to be performed even though it is already properly in the parked position. The car cannot be shutoff and remains running until several actions of shifting the car in and out of the park position.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11706396December 21, 2025
ELECTRICAL SYSTEM, UNKNOWN OR OTHER
After trying to remove rhe key from ignition, it gets stuck and won't come out unless I turn the car on, shift it into drive, wiggle the steering wheel, and try it again. Sometimes it works. Alot of times it take 5-10 min to get it out.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11706119December 19, 2025
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
The contact owns a 2022 Chevrolet Trailblazer. The contact stated that while driving 70 MPH on an open highway with the adaptive cruise control engaged, the system sensed an unknown object and slammed on the brakes. The adaptive cruise control was turned off. The local dealer was contacted. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 35,500.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11705260December 16, 2025
UNKNOWN OR OTHER, ENGINE
Exhaust fell off under normal operating conditions. Dealership (Dekalb Sycamore Chevrolet- Sycamore Illinois) stated this has been a common issue with this year group of Chevrolet Trailblazer SUVs. Dealership stated the bolts/exhaust pipe junction between the catalytic converter and pipe that goes to the muffler rusts through and the entire exhaust system from the cat back falls out of the undercarriage of the vehicle, which is what happened here.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11704764December 12, 2025
POWER TRAIN, UNKNOWN OR OTHER
“Shift to Park” message came on the dashboard. Car would not change gear or go into reverse or drive. Basically stuck in Park position. Car kept peeping sound nonstop for over 20 minutes. And it drained the battery. Car would not drive. Had to have it towed to the dealership I brought it from 45 miles away. I had to pay $656.72 at dealership to get it fixed. The dealership removed and replaces the shifter assembly which cost $656.72.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11702070November 30, 2025
ELECTRICAL SYSTEM, EXTERIOR LIGHTING, UNKNOWN OR OTHER
The vehicle displayed a warning on the dash that the battery was not charging properly and vehicle may stall. The vehicle was checked at dealership and issue was disregarded. 3 days later the vehicle showed the same warning and the battery light flickered, there was a chane in the power and lights dimmed. This was evaluated by dealership, apparently it is a known issue but no resolution available. When the battery light flashed during the second event there was no control over the vehicle (power/steering) creating a very concerning safety issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11700638November 20, 2025
ELECTRICAL SYSTEM, ENGINE
The issue is the yellow engine light lit up on the dash of my 2021 Trailblazer in late August of 2025. At the same time, the cluster displayed the message "Engine Power is Reduced". Over the next few weeks my car engine would randomly stall out while I was driving! As you can imagine, this is a very unsafe driving condition. My car stalls and I'm in traffic and have no ability at all to control the vehicle. This happened at least 4 times to me. When I checked the On Board Diagnostic codes on my vehicle the system reported back U060F (Mass Air Flow Sensor). I searched online for this condition with 2021 Trailblazers and found GM Service Bulletin number 22-NA-008, dated March of 2022. This Service Bulletin clearly shows that Chevrolet were well aware of a problem years before it occurred to my vehicle. So, in October I took my car to Bowman Auto Center, explained all of the above to them, and I mentioned the Service Bulletin that I found. Their investigation found that, indeed, the cause of my engine stalling was broken wires to the Mass Air Flow sensor (MAF sensor). Bowman repaired my car and billed me $364.44 as shown on the attached 2-page Repair Order. I tried to make the case with the Bowman Service Department that this should be a warranty repair, and paid by GM. Bowman responded that it was only a Service Bulletin from GM for the issue, and the customer is responsible for payment. I am astonished that repair of this product Design Failure, which results in an unsafe driving condition, would be paid for by the customer! The reason I call it a Design Failure is because NO wiring should break during the life of a vehicle. Engines rock and move, and the Trailblazer design should have compensated for this engine movement by having a sufficient slack loop designed into the wire harness leading to the Mass Air Flow sensor. I filed a case with Chevrolet, number 80982656, but they declined my request for reimbursement $$.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11699637November 16, 2025
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING, FORWARD COLLISION AVOIDANCE: WARNINGS, AIR BAGS
I was in a collision. Traveling a four lane highway during daylight ours with no in-climate weather. The car in front of a line of approximately 4 cars missed their exit and slammed on his breaks to make a right turn from the driving lane. The line of cars in front of me stopped and/or left the roadway to avoid a collision. I was unable to stop in time and had nowhere to go and I rear-ended the car in front of me, which was fully stopped in the lane. According to my dash camera my speed on Impact was approximately 45 mph. No front end collision warning alarms went off. No automatic breaking occurred. No airbag deployed. None of the vehicle safety and anti collision measures performed as I had expected. $10,000 worth of damage to my car alone.
Crash:
Yes
Fire:
No
Injuries:
2
Deaths:
0
#11699508November 15, 2025
ENGINE
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11698851November 11, 2025
FUEL/PROPULSION SYSTEM
2021 Chevrolet Trailblazer check engine code P1467
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11698171November 7, 2025
LANE DEPARTURE: ASSIST
I was stopped at a red light. When the light turned green I entered the intersection, the LKA system began alerting me and pulling the vehicle towards the oncoming left traffic turn lane. I took my foot off the accelerator and reached over to shut the LKA off as it was pulling my vehicle. The incident resulted in distracting me resulting in my car hitting a car in the oncoming left turn lane.
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11697910November 6, 2025
POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT
The contact owns a 2023 Chevrolet Trailblazer. The contact stated that after shifting into park(P), there was an abnormal beeping sound coming from the vehicle. There was no warning light illuminated. The contact shifted into neutral(N) and then back into park(P) to stop the beeping sound. The contact stated that while the vehicle was shut off and in park(P); the gear shifter independently shifted out of park(P) into reverse(R). The vehicle did not move backwards; however, the contact was able to shift back to the park(P) without further failures. The vehicle was taken to the dealer, and the contact was provided with the cost for a diagnostic test. The manufacturer was not notified of the failure, despite multiple attempts for assistance. The vehicle was not repaired. The failure mileage was approximately 40,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11697409November 4, 2025
ELECTRICAL SYSTEM, UNKNOWN OR OTHER
1/ while at the stop site, the car suddenly stopped and went black. Stereo turn off and screen went black. 2/ sometime I can’t unlock the car from inside. The lock works but not the unlock button. While backing or stopping there is a high noise that seems like I have a bad brake , took it to the dealership and they said the brake is good but they can’t figure out where the noise coming from. I took the car to the dealership 3 times in 1 month since the problem started and they still can not fix it.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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