2018 Chevrolet Traverse

I am submitting this complaint regarding a complete transmission failure in my 2018 Chevrolet Traverse (VIN 1GNEVGKW7JJ279077). The vehicle's transmission stopped functioning altogether, resulting in a complete loss of propulsion. The vehicle can no longer be driven and requires repair/towing. A sudden loss of propulsion can create a serious safety hazard, particularly if the failure occurs while driving in traffic. My mechanic has informed me that they have experienced multiple transmission problems with 2018 Chevrolet Traverses and that issues involving this transmission are still being researched and addressed. I am concerned that my failure may be part of a larger, known problem involving GM's 9T65 9-speed automatic transmission. GM has previously issued technical service information concerning the 9T65 transmission and established a transmission replacement pilot program involving certain vehicles equipped with this transmission. GM also developed additional diagnostic and repair strategies based on transmissions returned through that program. These actions raise concerns regarding the reliability and premature failure of this transmission. I am concerned that a transmission capable of completely failing and causing loss of propulsion represents a potential safety defect that warrants investigation, regardless of whether the vehicle remains under the original factory warranty. I respectfully request that NHTSA investigate transmission failures involving 2018 Chevrolet Traverse vehicles equipped with the 9T65 transmission and determine whether there is a common defect or premature failure pattern. I ask NHTSA to review GM's technical service bulletins, warranty claims, field reports, customer complaints, and previous transmission replacement programs to determine whether additional corrective action or a safety recall is warranted. Vehicle: 2018 Chevrolet Traverse VIN: 1GNEVGKW7JJ279077 Component: Power Train / 9T65 Automatic Transmission Failure: Complete loss

Car recently started to jolt when accelerating. Noticed it firsthand on the highway while on stop and go traffic. It's been doing it more often now when driving around the city. As soon as you accelerate past 15mph, it starts to jolt. The check engine light is not on. I do see that other 2018 Chevy Traverse have a recall, but my car (when checking by VIN) is not included.

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.

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 and the battery will drain all the way. Only solution is to replace the transmission shifter assembly.

On 08/15/26, I was at a traffic light waiting to make a left turn on a major roadway. Because the wait was on a hill, the park brake automatically engaged. When the traffic light turned green and as I attempted to accelerate, the electronic parking brake failed to release as it should and normally does. Since the vehicle would not move normally, I was unable to safely make my intended left turn so I had to continue straight in order to get out of the way of moving traffic. As I was driving to a parking lot of a business in the vicinity, my back tires were screeching and smoking as the park brake appeared to remain engaged. I was extremely concerned because I was in active traffic and could not operate the vehicle normally. I attempted to resolve the problem by turning the vehicle off, allowing it to sit for a few minutes and restarting it. After at least 20 tries, I could feel the pressure of the brakes release and I was finally able to move the vehicle normally. This was frightening and placed me and other motorists at risk. I was stopped at a major intersection on a hill when the vehicle failed to operate normally as traffic began moving. Had the parking brake remained engaged, I could have been stranded in moving traffic or potentially involved in a collision. I have experienced this parking-brake problem at least seven times, including this incident, since I have owned this vehicle since 2017. I have also experienced an abnormal condition involving the vehicle in which it would not allow me to shut off the engine when the park brake was engaged therefore wearing out the battery and I had to have it towed to the dealer. I am concerned that there may be an underlying electrical or electronic control-system defect. This greatly concerns me and it should be very alarming to the manufacturer. I have asked the dealer and called Chevrolet HQ to inquire about a recall or at least recoup some of the money I am constantly paying out of pocket.

Car wouldn’t move in Reverse, I’d give it gas and it would just rev. It would drive forward but very sluggish. Brought to 2 different mechanics and they both said I need to replace the transmission. Car has 97,500 miles on it. This is a known issue with these vehicles. The transmission ship had another traverse and a GMC Acadia in it for the same exact issue.

Front passenger tire was losing air, on the way to bring it to tire shop dashboard displayed tire pressure sensor, power steering system, TCM notification, Electronic brake control. Got it to the tire shop bought a new tire and they did a diagnostic test it showed TCM passed and failed, lost communication with power steering passed and failed, lost communication with inflatable restraint passed and failed. Once tire was replaced vehicle was jerking with TCM notification coming on and off like the vehicle was sliding.