general problems of the 2018 Chevrolet Traverse - part 1

The vacuum pump had a catastrophic failure. This led to failure of assisted breaking, and caused brake pedal to go rock hard while driving on the roadway. Metal shards from the vacuum pump broke off, and has now entered the engine. Chevy knows this vacuum pump is flawed, but did not include my model of vehicle in the recall. Even though it uses the same part. I received a “brake assist” message on the dash about 15 seconds prior to the loss of brakes. I had my wife and two kids with me, and this jeopardized their safety. Further research on the matter states this is a known issue at gm, but for some reason my year and model were not included.

Shift to park" error. . Even after turning the car back on. . Slowly going through each gear and back down to park I'm still getting this error.

When putting the vehicle in park it doesn’t recognize it’s in park and keeps saying shift to park.

Vehicle was driving fine in good condition and well maintenance. No warning at all and went to drive it home from a friends and it would not go in reverse at all. Towed to dealership and they said it’s a transmission issue. There is a recall on 2018 chevy Traverse vehicles. My vehicle is not showing up but I do believe this could be the issue and should be considered a recall.

Noxious emissions fill passenger compartment while at idle, or when using remote start. Cannot drive with windows closed, or with recirculation on. Passengers feel, "sleepy". Bracket holding flex pipe fails at the same point in several different Traverse vehicles. The 2018 model we have, is not covered by a recall, even though the 2019 of the same design and fail point, is. N222385510 gm is addressing this on only select models, even though the same issue is applicable to other models, and the same part numbers are the cause and or affected.

Park to shift keeps popping up on dash while driving. Vehicle will not recognise when in park at times to allow vehicle to be shut off properly. The stability track warning pops up on dash now as well. The check emits comes on with codes for all going back to transmission control module system and when replaced spark plugs we found that the pcv (cam cvr to turbo) tube was cracked all the way through where the hard plastic meets metal on the part and had to replace it. This is all after multiple failed parts that had to be replaced dealing with the ac unit and it’s lines. Today is the second time in two weeks that the vehicle has been in operational mode in the middle of a foward motion driving at the time. Luckily this time I was in a housing area and not a major street or on the loop 360 when it decided to stop driving while in motion in drive.

When the gear shift is in the park position, the system does not recognize it so the car doesn’t properly shut down; on occasion draining the battery. The shift to park problem has been present for 4 years. It has not drained the battery until this month.

The car has a "shift to park" error message. We noticed a recall for other 2018 Traverse vehicles and wonder why ours is not covered. Car will not shut down completely. Battery is drained. Dealer is requesting $767. 43 to repair when other GMC/chevy vehicles are identified in a recall.

I am unable to shift the car into park in order to turn off the engine. I constantly reverse and drive again to try again and again until it stays in park or the sensor realizes it is in park and turn off the engine.

The chevy suffers from the "shift to park" issue due to a faulty park switch in the shifter assembly, which is an electrical issue. Apparently gm does not cover this repair but it is dangerous as the car does not shut off even when engine is off and the gear is in park.

Light is telling me shift to park, this is third time it has happened, first time 2022, second time 2023 or 2024 and now 2025.

I’ve had this vehicle for about a year or less the car ran fine with minor problems that come with having a vehicle. Up until last week the car never showed any signs of a failing transmission, it went from running fine to shuttering and suddenly I wasn’t able to reverse. The check engine light never came on, I’ve did all my routine checks and more with the dealership I bought it from and was never told anything when the vehicle was brought in for inspections.

Frequent symptom is an "action required: shift to park" message on the dashboard. Which is preventing my vehicle from shutting down properly, and causing the battery to drain, and hinder my car's ability to start in addition to getting trapped in the vehicle because the vehicles fail to shift to the ‘park’ position preventing me from being able to exit the vehicle. This is a known issue affecting various gm models which one being my 2018 Traverse by gm but not willing to make official recall of the issue. There is a class action settlement due to this issue that was not privileged to me as an owner of a used vehicle included in this notice and have.

Exhaust raddling.

When I put my car in park and turn the vehicle off I get a warning that says shift to park. This has happened before and I have had it fixed a couple years ago. This problem has been ongoing for a couple months. It is not covered under warranty. I have to either start the car again and take the car out of park and then place it in park and then turn the car off, or push up on the gear shift to get the car to recognize that it is in park.

I have had to repair the muffler and now the catalytic converter. There was a fissure on the muffler and now there’s a fissure on the catalytic converter.

Engine light- shifting rough, steering wheel shakes. I took it in to get checked, they replaced something for the emissions. Then told I need a twerk converter. Another place didn’t recommend that & I was told needs a new transmission. I have only had my vehicle 4 years and have kept it well maintenanced.

There is a shutter at a low speed. Upon research, this is a common problem with the torque converter.

The vehicles fails to recognize it’s in park and does not shut off. Shift to park indicator turns on. Frequently have to park on incline and worried the vehicle will roll. The vehicle will not completely turn off and this has caused the steering to lock. When the vehicle finally turned off, then turned it back on we couldn’t get the steering wheel to unlock. Had to drive it with what felt like no power steering for a period of time. Shift to park indicator blinks and warning light appears that says no remote is detected, yet the remote is in the vehicle. Been in a situation where had to quickly get in to a dr but the vehicle wouldn’t turn off so had to leave the vehicle running. At that point anything could happen, but had to take care of a sick child.

I began hearing a rattling noise from my engine area recently. I made an appt with my local radley Chevrolet dealer. It was noted by the technician that the front exhaust pipe bracket that connects the 2nd front exhaust pipe is broken and tapping against each other causing the noise concern. They listed for me to replace the front exhaust pipe that goes from under the oil pan to the catalytic converter. Upon researching this issue, this appears to be a known issue for my specific year and make and model. However, upon calling gm they have nothing listed under my specific VIN number. I believe this to be an issue that should be covered under a special coverage or recall given the amount of owners having this same issue.

Regarding the vehicle's functionality, the horn activated unexpectedly on or around may 2, 2025, sounding continuously for approximately 10-15 minutes while the vehicle was occupied. Subsequently, the horn has ceased to function. Furthermore, on or around may 10, 2025, the powertrain system indicator illuminated, leading to a diagnosis on may 18th that identified code p0455, indicating an evap system leak. Concurrently, the driver's side seat belt buckle has exhibited a tendency to detach and fall between the seat components, failing to remain in its intended position.

My 2018 Traverse has had the “shift to park” message displayed on the instrument cluster when I put the vehicle in park. Even though the red p for park is illuminated and the vehicle is clearly in park the ignition will not power off when you depressed the start/stop button. The vehicle displays the message shift to park. Now this has transpired for about 3 months and it is very frustrating when you can not park in your garage especially when storms are imminent from the forecast not to mention carbon monoxide poisoning! now I or my wife have to continuously push on the shifter to get it to turn off. Or we have to turn the vehicle back on and try driving around the block or wherever we are at. Now not being able to turn your engine off is a definite safety concern especially when you have children and pets . This has been happening in gm SUV’s and is a known issue by gm but they seem it’s not a safety issue due it not causing any issues while driving. I had the vehicle repaired at our local dealer and it was $789 to repair the malfunctioning item. I have never heard of a shifter being defective in today’s modern cars. Whether it’s a mechanical issue or electrical issue it needs to be addressed. If I were to live an apartment dwelling with indoor parking I would have to find some other means to park if I could not turn my engine off. I have read numerous complaints online via forums which is very saddening when these automakers claim dependability with their very expensive vehicles. If the vehicle was built with defective or faulty components how does thst burden fall on the consumer?.

Catalytic converter going bad and exhaust has broken off from the weld.

Issue with my exhaust pipe from catalytic converter code and I seen it has a hole on the exhaust.

Truck stuck in shift to park.

I recently had my alternator fixed and the torque converter last year. I was having issues with the battery staying charged, car would jerk, radio, heat and air would shut off and come back on, car would go in reverse although I'm trying to go forward, shift to park warning message when car was in park and there are shortages out something that will connect and disconnect the bluetooth when I'm on calls via bluetooth. I picked my car up from love Chevrolet 1/28/2025. Everything seemed fine but the car still jerked when I would take off at lights, make turns or go up hills. The shift to park message is still happening. When I park the car and turn it off the car makes a sound and the warning pops up. The car lights will not go off when this happens. I have to turn the car off and on or take it out of park a few times for it to stop. I'm afraid to leave the car with that warning on because the doors won't lock and I'm afraid it will roll. Love Chevrolet said they didn't see the error message for it while they were driving but it constantly happens to me. Even when I turn the car on to warm it up it gives me that error message.

* when in park and turned off it will display shift in to park * while accelerating from a stop it will get stuck when trying to switch gears * when in car play mode it will freeze to the point you can not turn the volume up or down until you turn the car completely off for a while. * when at a stop light the car will display stailbreak * there is a clicking noise when accelerating or pressing on gas * auto start does not work.

When I turn my vehicle off it says that it’s not in park when it is and it keeps beeping.

Shift to park issue. Car does not recognize the it is shifted into to park. Shift to park warning appears and warning bell. Seems to happen quite often and I have noticed that other years have been recalled for this same issue. Makes it quite difficult to park and lock the car. Electrical system stays on.

My 2018 chevy Traverse has a shift to park warning that continues to come on. It makes the vehicle not lock or park and you have to wait till it goes off. Sometimes it takes restarting the car and turning it off again before it will turn off. This seems to be a known problem when you look it up that 2018-2019 Traverse are experiencing this. This should be a national recall for those years specifically.

When putting my car in park and shutting off. My Traverse says warning shift to park when I am clearly in park. I cannot lock my doors and horn beeps. It continues to ding with warning!.

While I was driving, the rear sunroof suddenly "exploded". I was shocked as I did not feel any impact, but it sounded like a wrecking ball had hit my car. I don't think I swerved into the other lane or anything like that, but honestly it happened so fast, I'm not sure. My heart was racing, and I felt like I was in danger, but able to pull over fairly soon after. I began to feel unwell as if my blood pressure was elevated, which I'm sure it was. I inspected the outside of the vehicle and didn't see any damage, but then from inside noticed a crackling sound, which was localized to the rear sunroof. I examined it from the top and found it to be cracking in various areas around the perimeter of the glass. The shade on the sunroof was closed, so I don't believe any glass entered the interior of the car. I called my daughter to tell her what had happened and drove the rest of the way home. At this point, I have not had anyone else look at it but am reaching out to the dealership where I bought the car.

This concerns a defective transmission control (shifter) assembly. The defective shifter assemblies prevent the vehicles from detecting when the driver places the car in “park. ” as a result, the vehicle goes into accessory mode and one cannot shut off or lock the vehicle, the instrument cluster displays a “shift to park” message even though the gear shifter is already in “park,” and the battery drains. Because one cannot reliably turn off their vehicles when reaching their destination, the defect substantially impairs the vehicles’ ability to provide safe and reliable transportation. Shifter assemblies are not expected replacement or maintenance parts and absent a defect should not require replacement. Nonetheless, gm had knowledge of the defect and gm fails to repair the gm known defect. Chevrolet service department has confirmed the defect.

The shift lever is not sensing that the vehicle is in park. This is the second time this has happened. I have to click the shift lever button rapidly to get it to sense that it is in park. The problem was confirmed in 2019 by a dealer and the whole housing was replaced. It is ultimately failing again. Gm needs to be held liable for this fix.

The shifter or gear selector does not sense when it is in park. So it will not fully let the vehicle power down. Example. . . . If I park, place the vehicle in position park, the "p" on the dash is illuminated, the "p" on the center console is illuminated, the doors unlock, but system information screen will continue to alert, ringing, with an alert to place vehicle in park. This is happening now everyday, sometimes take 10 plus minutes before the car senses it is actually in park.