Chevrolet Traverse adaptive cruise problems

Filed Sep 21, 2026 · Acceleration, Brakes · NJ

My 2016 Chevy Traverse LT with 108,750 miles had issues with the rear brake lights, and the Traction Control light would come on and the Traction Control turns off. A message appears on the dash that shows Service StabiliTrak. When I drive the vehicle to accelerate it shakes, jerks and shudders, and then it rides fine for a bit but the Traction Control is still off. I also noticed that the cruise control doesn't work either. I decided to wait a few more days hoping it would clear out, which it did for a day but the problem returned. I took the Traverse to AutoZone to use an OBD2 scanner and it showed that there is an issue with the braking switch (code C0161-00 ABS Brake Switch Circuit). A local mechanic replaced a fuse and the brake switch but the Traction Control/StabiliTrak issue hasn't been fixed. He's tried everything but the problem won't go away. Apparently this an ongoing problem with many Traverses.

Filed Sep 6, 2026 · Driver assistance, Electrical · AR

the vehicle will not register that it is in park, when the engine is turned off a beeping noise reads shift to park - you have to start the engine and shut it off multiple times, or slam the shifter into place to get it register in park. this happens constantly and is starting to get old, and annoying. it is listed as a known problem on the forum group. when the notice to shift into Park is stuck on, the beeping will not stop... Also there is a shudder while driving no matter the speed. They did a transmission service and messed with torque converters but has not done anything. Also will be driving down the road with cruise control and the cruise control with randomly jerk and shut off for no reason. Has happened on the interstate.

Filed Jul 17, 2026 · Brakes, Driver assistance · KS

Vehicle: 2024 Chevrolet Traverse Z71 Mileage at first incident: 25,821 My 2024 Chevrolet Traverse Z71 experienced multiple safety‑critical electrical and ADAS failures. The vehicle had a Reduced Acceleration / limp‑mode event, accompanied by a strong antifreeze odor inside and outside the vehicle. Dealer diagnostics on 06/29/2026 and 07/16/2026 confirmed several trouble codes affecting the engine, braking system, and collision‑avoidance systems. The following diagnostic trouble codes were recorded: P3705 – Engine Coolant Pump Control Circuit Low (engine cooling fault) C0609 – Park Brake Actuator / Switch Signal Fault (brake system logic fault)-Active 6.29.26 10:12:43AM U160A – Lost Communication With Serial Data Gateway Module (CAN‑bus gateway failure)-Active 6.29.26 10:12:43AM U197A – Lost Communication With Front Radar Sensor Module (forward collision warning / AEB disabled)-Active 6.29.26 10:12:43AM These faults caused loss of radar‑based safety features, including Forward Collision Warning, Automatic Emergency Braking, and Adaptive Cruise Control. The vehicle displayed warnings and temporarily disabled ADAS functions. The Reduced Acceleration event created a hazardous situation in traffic. The dealer attributed the incident to “low coolant,” but the diagnostic codes clearly show electrical and communication failures across multiple safety‑critical modules. The antifreeze odor continues, suggesting a possible coolant leak or unresolved cooling system issue. The vehicle has been inspected by GM technicians, and the codes were documented on both visits but they say car is fine. The safety systems affected include brakes, engine cooling, electrical CAN‑bus communication, and collision‑avoidance radar modules. I am requesting the federal safety agency to record this complaint and evaluate whether these failures represent a broader safety defect in the 2024 Chevrolet Traverse Z71.

Filed May 22, 2026 · Acceleration · 5,000 miles · FL

The contact owns a 2025 Chevrolet Traverse. The contact stated that while driving at an undisclosed speed, the Super Cruise or Cruise Control would not deactivate when the On/Off button was depressed, causing the steering wheel to flash red and the vehicle to suddenly shift down in velocity. A message "Super Cruise not available" was displayed on the instrument panel. The local dealer was contacted; however, the vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 5,000.

Filed May 12, 2026 · Acceleration, Driver assistance · CA

I am reporting a serious safety concern involving my 2026 Chevy Traverse that occurred on May 9, 2026 at 6:46pm. While driving at freeway speed in the carpool lane with adaptive cruise control and gap assist engaged, my vehicle suddenly applied the brakes unexpectedly even though there were no vehicles directly in front of me. The nearest visible vehicle was a significant distance ahead, and there was no apparent reason for the braking event. This was not a gradual deceleration. The vehicle actively braked. I was passing under or near an overpass at the time, which makes me wonder whether the sensors misread something. Regardless, the sudden braking created a dangerous situation because vehicles were behind me, and the driver behind appeared to think I was brake checking them. This could have easily caused a rear end collision. As a result of this incident, I no longer feel I can trust these safety/driver assistance systems and have since disabled those features because I do not feel safe relying on them until this issue is properly investigated and addressed. I am requesting that this issue be formally documented, that the vehicle be inspected for any malfunction related to adaptive cruise control, automatic emergency braking, forward collision warning, or related sensor systems, and that I be advised whether this is a known issue with the 2026 Traverse. If there are any software updates, technical service bulletins, recalls, or corrective actions available, please let me know. This is a serious safety concern, and I would appreciate guidance on the next steps.

Filed Apr 27, 2026 · Brakes, Driver assistance · CA

We drove the Traverse 55 miles to a baseball game. When we got in the car to return home several warning lights appeared on the instrument display and there was an audible warning sound. The message “Service ESC” and “Brake assist failure” appeared on the instrument display panel. We couldn’t find a dealership that was open on Saturday so we cautiously drove 55 miles home. The brake pedal was hard to push and had to be pushed all the way to the floor to stop the vehicle. We could not drive faster than 62 MPH on the way home and I had to start braking early in order to be able to come to a complete stop at stop lights. Cruise control isn’t working either and the audible alarm sounds off every couple of minutes. We took the car to our local dealership this morning.

Filed Apr 22, 2026 · Brakes · 11,000 miles · IN

The contact owns a 2025 Chevrolet Traverse. The contact stated that while driving at slow speeds, the red "Service Brake Assist Warning" light and ESC (Electronic Stability Control) message were displayed. Additionally, the yellow ABS, Cruise Control, and Traction Control warning lights were illuminated. Due to the failure, the contact returned to the residence and parked the vehicle. The dealer was contacted and agreed to have the vehicle towed from the residence to the dealer. The dealer performed a diagnostic and retrieved DTC: C055F, for the brake master cylinder failure. The dealer informed the contact of Technical Service Bulletin: 25-NA-240; and the failure was associated with the failure. The manufacturer was notified of the failure but offered no assistance. The vehicle was not repaired and remained with the dealer. The failure mileage was approximately 11,000.

Filed Mar 23, 2026 · Brakes · IA

Master Brake Cylinder is defective. Multiple caution lights illuminated. (Service ESC, Service Brake Assist, Cruise Control Inoperative) Ed Morse Chevrolet and Brad Deery Motors have both confirmed the brake cyclinder being defective. Ed Morse advised not ordering the same brake cylinder as they are known issues from factory, they advised me to wait for the recall or a re-engineered part to be produced by GM. Brad Deery Motors knew nothing about this and they are currently putting the OEM master brake cylinder back on the car. I believe they are putting a known defective component back on my brand-new vehicle. There is currently a law suit in Pennsylvania. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Mar 14, 2026 · Brakes, Driver assistance · NC

The first component to fail was the brake booster module which controls the ABS, forward collision, adaptive braking, adaptive cruise, traction control system, etc. The malfunction started when the forward collision assist activated to prevent me from hitting a deer in the road. We avoided hitting the deer but all of those lights came on immediately. We contact Friendship Chevrolet the dealer we bought the car from had us bring it in to be checked. They confirmed the defective Module and said that it was a reported issue that GM had it's engineers looking at. They said they would have to wait for the part to arrive, advised that we could continue to drive the car even though there was a major malfunction with the critical braking systems. did not offer any type of loaner to ensure my family's safety. We had to wait for more than 30 days for them to receive the part and complete the repair still driving this unsafe vehicle because we had no other choice considering how high the MSRP & payment is on the vehicle. Once the repair was finally completed we immediately began to notice that the brakes were consistently screeching when in slow moving traffic like car rider pick up line. I reported the issue to the dealership and they gave me the answer that it was due to a more abrasive brake pad being used due to it being a passenger vehicle and it's weight. We continued to deal with the squeaking for months then we noticed a coolant leak. Dealership again said had to wait for part. After they did not contact me back I contacted GM and opened a case. When they got it in I also had them change the brakes out of my own pocket. Now the brakes squeak anytime pressure is applied and when coming to a complete stop they grind so loud you can hear and feel them digging in. GM still says nothing is wrong and brakes are a maintenance charge and are not covered for any reason. I feel the vehicle is still extremely unsafe and my family is at risk of possible crash.

Filed Jan 30, 2026 · Acceleration, Engine · NM

Since I acquired the vehicle at around 100k miles, there is a transmission shift wobble at 30mph, 40mph, 45mph, 60mph and 65mph. I drove a manual transmission for over 10yrs prior to this vehicle and when this transmission wobble happens, I just reved a bit and let the gas go so it shifts better into the next gear. I just got used to it, my worry began when the wobble would happen while on cruise control. No check engine light comes on, there’s no computer codes registering, it just shakes and wobbles like the tranny is gna give out around those speeds.