Chevrolet Trailblazer adaptive cruise problems

Filed May 5, 2026 · Driver assistance, Electrical · IA

My shift to park was broken last September 9-25, and I took it to the dealers I bought it from (the month prior, in august) and they fixed it. I was never informed what they did to fix it. I didn't have any issues with it after that up until recently. I will put my car into park, press the engine button to turn it off, and then it displays the shift to park message and beeps. the light next to my gear shift will be on "P" and my screen also says my car is in park. I have to mess with the gear shifter until it recognizes that it's parked so I can actually leave my car. I have taken it to an auto shop local to me and they had it all day and couldn't figure out what caused it. I typically am stuck in my car for over 5 minutes because of this issue. My lane departure warning worked for about 2-3 months after I purchased the car. Out of nowhere it stopped working and when I press the button to turn it on, it says it's unavailable. I've tried cleaning the sensor, turning it on when I'm not accelerating/braking, and turning it on while in cruise control and it will not work.

Filed Dec 24, 2025 · Electrical, Transmission · SC

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.

Filed Dec 19, 2025 · Driver assistance · 35,500 miles · MN

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.

Filed Aug 8, 2025 · Driver assistance · UT

The contact owns a 2023 Chevrolet Trailblazer. The contact stated that on several occasions, while the Forward Collision Avoidance: Adaptive Cruise Control was activated, and the brakes were inadvertently activated. The vehicle was taken to a dealer, and it was determined that three software updates needed to be completed. The vehicle was not yet repaired. The manufacturer was notified of the failure, and a complaint was filed. The failure mileage was unknown.

Filed Apr 25, 2025 · Acceleration · MI

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.

Filed Mar 6, 2024 · Acceleration, Electrical · OH · crash

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.

Filed Jul 22, 2023 · Acceleration, Driver assistance · MD

On more than one occasion, my vehicle brakes hard when on adaptive cruise control when approaching a shadow from a tree or over path

Filed Jan 30, 2023 · Brakes, Driver assistance · NV

2022 Trailblazer with approximately 21,000 miles on it. Cruise control fails to engage unless you put your foot behind the break pedal and pull the break pedal forward. This causes safety issues because a person thinks the cruise is engaged but it doesn't actually engage and causes a person to slow on the freeway. Driver also gets distracted trying to troubleshoot the issue because cruise fails to engage without an obvious reason for failure. The fix also causes the driver to operate the vehicle in an unsafe manner because they have to remove their foot from the correct position and place it behind the break pedal to fix the problem. This issue is highly reproducible and was lived with for approximately a year until the solution of pulling the break pedal towards the driver was discovered just last month. Dealer said the issue is nonexistent.

Filed Oct 13, 2022 · Driver assistance · MI

Vehicle is little over one month old and has less than two thousand (2000) miles. Adaptive Cruise has been acting erratically. At times going at highway speed on expressway adaptive cruise would apply hard brakes 1. when approaching a overhead bridge. 2. passing a vehicle in the adjacent lane and 3. changing lane. Yesterday (10/12/2022) on a higway the instrument panel displayed a warning message "Service Side Detection System". Took it to GM Dealer who ran a Diagnostic which showed the following codes: 1. B1325 Control Module Power Circuit Low Voltage 2. B317A Passenger Window Switch Short to Ground 3. U0151 Lost communication with inflatable Restraint Sensing and Diagnostic Module 4. U 0155 Lost Communication with Instrument Cluster 5. U0184 Lost Communication with Radio 6. U0232 Lost Communication with Side Object Detection Control Module - Left Dealer said that these are just notification and may not be able to find anything. It advised to bring vehicle back if this message pops up again.

Filed Aug 1, 2022 · Driver assistance, Transmission · 500 miles · WV

The contact owns a 2022 Chevrolet Blazer. The contact stated while driving 70 MPH with the cruise control activated, the Forward Collision Avoidance system activated erroneously. The contact stated no warning light was illuminated. The contact was able to continue driving to his destination. The contact also stated that the vehicle occasionally accelerated independently. The contact took the vehicle to the local dealer and made them aware of the failure. The contact stated that he had taken the vehicle to the local dealer three times. The vehicle was not diagnosed or repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 500. The VIN was not available.