2018 Chevrolet Traverse problems

Filed Nov 4, 2026 · Engine · CA

The first time this happened was in 2024, my Traverse started to sound like a go-cart, loss of power to accelerate, and exhaust smell would leak into the cabin. Being active duty living on base with one car it was more convenient to use an insured Mobile Mechanic. - Front bracket that secures the Exhaust Manifold/ Catalytic Converter in place welds failed resulting in the parts to be under extreme additional stress breaking it. This has happened every year since, everytime Chevrolet/GM customer service has been contacted and we are told that my VIN year make and model are not on the Special coverage list and there is nothing they can do. Three Catalytic Converters in three years from an engineering flaw is not normal wear and tare.

Filed Oct 26, 2026 · Brakes, Driver assistance · NY · crash · 1 injury

I was driving along the Jackie Robinson Parkway when, on a curve, the car braked on its own and crashed into a wall, resulting in the total destruction of the vehicle. My son had to be hospitalized. This car had braked on its own before—at speeds of 10 or 15 mph—but I didn’t think much of it at the time; however, this time we were traveling at 45 mph when the

Filed Oct 14, 2026 · Transmission · 148,000 miles · MA

The contact owns a 2018 Chevrolet Traverse. While driving at 5–8 MPH, the transmission slipped. After coming to a complete stop, the vehicle hesitated to accelerate for five seconds before jumping forward 3–5 feet. Several unknown warning lights briefly illuminated. Additionally, the vehicle failed to respond while in reverse(R). The contact expressed safety concerns for his child who occupied the vehicle. An independent mechanic was unable to diagnose the failure. The failure mileage was approximately 148,000.

Filed Oct 10, 2026 · PA

Sporadic issues when parking. When pressing the push to start button to turn off when in park, it will not turn off. It displays shift to park. Sometimes it appears to happen on unlabeled surfaces.

Filed Oct 1, 2026 · Electrical, Engine · MD

First issue-cracked catalytic converter caused leaking carbon monoxide inside vehicle. When I was driving I could smell strong, nauseating fuel smell and would have to drive with windows open to try and get fresh air. Took it to local shop for repair which cost $2700. After repair did some research and found special coverage warranty for 2018 Traverse for this same issue, however chevy told me because I took it to a third party they would not reimburse. Second issue-when car would go into gas saving mode vehicle would shut off quickly then start back up and all alert lights would come on (ie. engine light, parking light, etc.), vehicle would also show typed alert on screen something about power steering would be modified and drive safely. Recently took it to chevy to have it looked at, 3 issue were wrong, one being the purge solenoid needing to be replace. Because of known issue before, did some research and also found a special warranty coverage for 2018 traverses for this issue as well. However, my VIN is not showing any of these recalls so now chevy says they will also not cover this.

Filed Sep 18, 2026 · Transmission · VT

For months we have had issues with the known issue of “Shift to Park” which is a huge potential safety risk to myself, my children, and all of my neighbors who are ever remotely close to the vehicle. No dealer can resolve the known issue for this year/make/model. It has slipped from park to drive once but thankfully I was still in the vehicle. Additionally, at barely 100,000, my transmission has failed suddenly. After having the vehicle suddenly buck when driving down the road— again risking the safety of myself and my children, as well as other drivers around me- the check engine light came on. After being inspected, the codes coming up are P0700, P2723, and some other transmission related codes indicating there is an internal issue with the transmission. I am told I will need to replace the entire transmission and it will cost well over $9,000. This vin should have been included in the prior transmission recall for this year/make/model due to the negligent risk of the vehicle slipping out of park and slipping gears while driving. Please help.

Filed Sep 11, 2026 · NJ

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 the federal safety agency 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 the federal safety agency 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

Filed Sep 6, 2026 · Transmission · CT

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.

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 Aug 30, 2026 · Transmission · IL

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.