Problems · NHTSA complaints

2024 Chevrolet Trailblazer problems

Owners filed 36 complaints about the 2024 Chevrolet Trailblazer with NHTSA between Mar 2024 and Oct 2026. The most-cited component is electrical system (11).

Complaints
36
Filed with NHTSA
Crashes
3
Reported by owners
Fires
1
Reported by owners
Injuries
0
People reported injured
Deaths
0
Reported to NHTSA
01 —By component

Complaints by component

One complaint can cite several components
  1. Electrical system11
  2. Engine9
  3. Power train8
  4. Service brakes4
  5. Visibility/wiper3
  6. Lane departure3
  7. Forward collision avoidance3
  8. Seat belts2
  9. Wheels1
  10. Back over prevention1
  11. Structure1
  12. Exterior lighting1
  13. Vehicle speed control1
  14. Seats1

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

Data from NHTSA Complaints API · synced Nov 10, 2026NHTSA vehicle page
02 —Trend

When complaints were filed

Does it get worse with age? Complaints per calendar year filed
View as table
Model yearComplaints filed per calendar year
202413
202514
20269

Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.

03 —Owner reports

Top problems in owners’ words

Verbatim from NHTSA complaints, newest first

Electrical system

11 reports1 crash
“My 2024 Chevrolet Trailblazer has two main issues. First, there is a constant squealing noise when braking. I reported this twice to the dealer — the first time they said it was just sand inside the wheel. The noise continued. On the second visit, they told me it would cost over $100 to inspect the brakes because the wheel needed to be removed, which I couldn’t afford. This problem started before the vehicle reached 36,000 miles. Second, the electrical system malfunctions occasionally while driving. When I connect my son’s phone to Bluetooth, both the dashboard and infotainment screens shut off completely for a few seconds. This happens while the vehicle is in motion, and it is extremely dangerous, especially on highways. The screens then turn back on. I believe both issues may relate to safety and should be investigated.”
Owner complaint to NHTSAFiled Jul 30, 2025Electrical system, Service brakesODI 11677369

Engine

9 reports2 crashes
“My 2024 trailblazer lt's engine light came on about a month ago. I took it to a local dealership and they said it was caused by CCND. Diagnosed code P0128 in pass/fail status. They test drove it to get light to come on and it was unable to duplicate it. They cleared the codes. A month later it came back on. I took it to my dealership and they said they have to take the entire front end off to replace the engine coolant bypass valve. They said that the electronic component was going bad. This car isn't even 2 yrs old. This should not be happening.”
Owner complaint to NHTSAFiled Jan 16, 2026EngineODI 11711444

Power train

8 reports2 crashes
“When accelerating forward, the front wheel is almost locked up, and I was violently thrown forward into the seat belt and steering wheel. The transmission seemed like it jammed and the car was bucking. there is a known GM technical service bulletin on this, but no recall. The car was towed to the dealer and not drivable. I’m glad this did not happen on the highway or with other cars around or it would have caused an accident and injury.”
Owner complaint to NHTSAFiled Oct 16, 2026Power trainODI 11771770

Service brakes

4 reports
“The brakes have been squeaking and making grinding noises since I hit 13,000 miles.it was intermittent at first, and was only happening when I was slowly hitting the brakes,but every time I stop now you can hear them squeak or make noise..i took it to a local mechanic and they said the brakes look ok, but to check with the dealer. I took the car to the dealership and they said they didn’t hear the squeaking or grinding but they gave me a pamphlet that said the brakes just do that, that it’s normal they are making sounds and the pamphlet said possibly reasons why they are noisy.the brakes sounding like that is not normal,because they don’t sound good, and they seem to be getting worse.”
Owner complaint to NHTSAFiled Nov 22, 2024Service brakesODI 11626948

Visibility/wiper

3 reports1 fire
“The required back up camera got water inside the housing, worked for a little while, and then ultimately failed. There is a Recall for other trailblazers with this exact issue, however it seems my VIN was not included in said recall.”
Owner complaint to NHTSAFiled Oct 22, 2026Unknown or other, Visibility/wiperODI 11772871

Lane departure

3 reports1 crash
“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.”
Owner complaint to NHTSAFiled Nov 7, 2025Lane departureCrash reportedODI 11698171
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 10, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.