204 of the
9,343 complaints filed about the Chevrolet Trailblazer
are about the throttle and cruise control —
2% of everything owners reported.
The worst model year for it is 2005.
204
Complaints
2%
Share of all complaints
16
Crashes
1
Fires
Acceleration & Cruise Control complaints by model year
Experiencing reduced speed, rattling noise, check engine light, power steering light on. Chevy app shows throttle control system and antilock break system error messages. Took to Chev dealership. Advised it was fuel injector (1 /4 was burned out). Had all 4 replaced ($3000). Picked up car on a Friday, vehicle was having the same issues next day Saturday. Took it back on Monday, it is now Wednesday and they’re saying it’s the turbo charger now (another $3000). Mechanic couldn’t figure out what the issue was so it took 3 days for him to now say it’s the turbo charger. I think it was the turbo charger from the get go! What’s the purpose of the diagnostics ($250)? Isn’t it to pinpointed the issue? 1st day, took him 4 hours to say it was the fuel injector. 2nd time around it took 3 days. I kept showing them and telling them it’s the throttle control system! They’re trying to rip me off! Mechanic is saying he’s been test driving it and no issues. I took a photo of my mileage before I handed them my car and it was 79,190. The mileage today says 79,191. How and where is he test driving it if it’s only been 1 mile? Reverse and forward ? They’re lying
NHTSA complaint #11690808 — an unverified report by a vehicle owner.
Almost every time I shift from park to drive and take my foot off the brake my car jolts forward a couple feet/inches to take off by itself in a manner that it should not. This has been going on since I got the car brand new and have had it just over a little over a year. I try to be as careful as I can with it and mentioned it to the Chevrolet dealership that does all my maintenance on my car. They are not sure what is causing the issue, but on 05/24/2025 I was attempting to get ready to get gas and needed to pull up slightly a little bit more and when I shifted to drive my car jolted forward and hit another vehicle. No damage was done to the other vehicle or mine, and the gentleman was nice and said it caused no damage for either of us but my car cannot keep doing this. Sometime is not right with it to be constantly jolting forward as soon as I shift to drive and take my foot off the break peddle to go. This could have been a lot worse had a human been in front of me and I do not want that to ever happen.
NHTSA complaint #11662986 — an unverified report by a vehicle owner.
Check engine light is on. Took to O'Reilly and had them put their tester on it to get the codes. Codes show P0700 and P1467. My cruise control and auto start will not work. My mechanic said this is an issue that should be fixed free of charge but no recalls show for my vehicle.
NHTSA complaint #11656877 — an unverified report by a vehicle owner.
Two times in a month after getting fixed the first time the esc error code pops up and the engine starts running at 1/2 capacity and the steering gets hard to steer. There is also a braking error code that displays. I have had to tow it to the dealership twice now and can not drive it. It is a danger since it will decelerate when in traffic and becomes hard to steer.
NHTSA complaint #11655770 — an unverified report by a vehicle owner.
Engine power reduced came on after I was driving from a patient’s home. My car started driving very rough. I had to pull over because I was in danger of being hit from behind. I took my car to a mechanic and was diagnosed with the code DTC P2714. I looked online and there are a lot of people having this issue and being put in dangerous situations when we drive. Chevy knows about the issue and has not issued any recalls. Unfortunately for me my vehicle is past the limited warranty so now I have to save up money to get my transmission serviced. I’m never buying American again. I could’ve been really hurt when my engine cut off.
NHTSA complaint #11645476 — an unverified report by a vehicle owner.
While driving 65-70 MPH cruise control will continuously "bog" down and act like it is wanting to cut off the whole vehicle. transmission is starting to act like it is slipping to the point where I am going all the way to the steering wheel before it catches again. Vehicle is under 36,000 miles and should not be having transmission issues. Radio has been replaced once before but is now doing the same thing where it is not recognizing my phone, directions given to it by touch on screen, and will even completely turn off while in the middle of driving. Will freeze and then act like the screen has 'water' damage. back up camera is not calibrated correctly. It states that I have more than enough room to make a turn but when looking into my mirrors, it is off by almost a foot and a half. I was in a car accident due to the back up camera malfunction with the difference in distance and with the screen malfunctioning. I have had the vehicle inspected by the chevy dealership multiple times and they have stated that there is nothing coming up on the code reader. The vehicle is available for inspection. My children ride in this vehicle and after the accident, I do not deem it quite safe with the malfunctioning parts. There has not been any lights coming on for the issues but the issues are there.
NHTSA complaint #11575852 — an unverified report by a vehicle owner.
The car rmp goes high when accelerating it's a common problem with the cooling fan which the company is aware of it but aren't held reliable! It's a shame that nhtsa hade many complaining about the issue but aren't holding the manufacturer responsible this could of hade me and my family in an accident!
NHTSA complaint #11482130 — an unverified report by a vehicle owner.
3 times in the last year while we were driving the acceleration wen very high like from 50 to all of a sudden went up to about 80. I had to stand on the brake and try to pull over. Still accelerating I put it in park and shut it off. When you restart it it drive fine again. This has happened three times and the dealership says they can't find a problem. We are stuck driving a death trap. Please help. They wanna charge diagnosis everything I take it in. Then they say they can't find nothing. Now I am finding others that have had same issue and dealership says there is no problem. This has got to be destroying the engine reving at such high speeds.
NHTSA complaint #11480422 — an unverified report by a vehicle owner.
The contact owns a 2022 Chevrolet Trailblazer. The contact stated that while driving 40 MPH, the vehicle experienced unintended acceleration. During the failure, the vehicle accelerated to speeds in excess of 100 MPH. Additionally, during the failure the brake pedal was depressed however, the vehicle did not slow down or stop. The vehicle was shifted to park to be stopped. The vehicle was towed to the local dealer. No further information was available. The cause of the failure was not yet determined. The manufacturer was also notified of the failure. The failure mileage was 2,876.
NHTSA complaint #11448626 — an unverified report by a vehicle owner.
.+Electrical system. Have read this speedometer issue can also cause other malfunctions on instrument panel such as cruise control issues. .+Driving a car with a broken or faulty speedometer is very dangerous. Not only can it put you in danger, but it can also jeopardize the safety of your passengers, and other drivers and pedestrians on the road. As for the law, you can also be ticketed for operating a vehicle with a broken speedometer, which can cost you fines and court fees, and even risk suspending your drivers’ license. .+My mechanic has not had the chance to look at it yet as he isn't open till Monday. .+No other warnings were given prior to failure.
NHTSA complaint #11420645 — an unverified report by a vehicle owner.
THE CHECK ENGINE LIGHT CAME ON, MY GAS TANK NEEDLE WENT DOWN TO EMPTY ON A FULL TANK OF GAS AND WILL NOT COME BACK UP, AND IT STALLS. WHILE I WAS DRIVING.
NHTSA complaint #11404272 — an unverified report by a vehicle owner.
TL* THE CONTACT OWNS A 2021 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT UPON ATTEMPTING TO PARK HER VEHICLE AT 5 MPH, THE VEHICLE INDEPENDENTLY ACCELERATED FORWARD WITHOUT WARNING, JUMPED THE PARKING MEDIAN AND CRASHED INTO A BUILDING. THE AIR BAGS DID DEPLOY UPON IMPACT. THE CONTACT SUSTAINED MINOR BRUISING FROM HER LAP BELT BUT DID NOT NEED MEDICAL ATTENTION. THE AUTHORITIES ARRIVED AT THE SCENE AND A POLICE REPORT WAS FILED. DUE TO THE FAILURE, THE VEHICLE WAS TOWED TO SID DILLON CHEVROLET - FREMONT(2500 E 23RD ST, FREMONT, NE 68025) WHERE IT HAD REMAINED IN THEIR POSSESSION TO DETERMINE THE FAILURE. THE MANUFACTURER HAD YET TO BE NOTIFIED OF THE FAILURE. THE VEHICLE HAD YET TO BE REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 6,000.
NHTSA complaint #11375970 — an unverified report by a vehicle owner.
THERE'S A PROBLEM AFTER BRAKING WHICH CAUSES A FEW SECOND DELAY WHEN ACCELERATING FROM A SLOW SPEED, SUPPOSEDLY PART OF THE STABILITRAK/ABS SYSTEM CAUSED BY A FAULTY SENSOR. I HAVE ALMOST HAD A COUPLE OF ACCIDENTS BECAUSE OF THIS WHEN WAITING TO TURN IN A LEFT TURN LANE.
NHTSA complaint #11361695 — an unverified report by a vehicle owner.
SPEEDOMETER FIRST SHOWED SPEED OF 60 WHEN SITTING STILL. I TURNED OFF THE ENGINE, RESTARTING IT 3 TIMES AND THE SPEEDOMETER RESET. BUT A FEW DAYS LATER IT ONCE AGAIN STUCK AND I HAD JUST STARTED IT. THIS TIME AT 48 AT ALL TIMES WHETHER THE ENGINE IS ON OR OFF, IDLING OF TRAVELING. IT CONTINUES TO BE STUCK AT 48 AT ALL TIMES, NEVER DECREASING OR INCREASING.
NHTSA complaint #11189864 — an unverified report by a vehicle owner.