2017 GMC Acadia

There's a shuddering, clanking sound coming from the torque converter when the engine shifts gears at 25-35 mph. I also noticed that it happens when it transitions from 4 cylinders to 6 cylinders. There's a sweet spot somewhere in there. It has also happened on the highway from 65-75 mph. This also happens when it's switching from 4 cylinders to 6 cylinders.

There is a big time shudder and the dealer will not believe me because it doesn’t do it for them. They did admit there is a problem but won’t fix it. I did the transmission fluid exchange like they said and still the problem. I see service bulletins for it but no recall. It’s is now out of warranty and I will have to pay for it. This is not right

The contact owns a 2017 GMC Acadia. The contact stated while driving 20 MPH and accelerating to 25 MPH, the vehicle jerked and downshifted, and decelerated to 17-18 MPH. The contact stated that the failure occurred several times while driving. Additionally, the contact stated while driving 5 MPH and attempting to come to a complete stop, the brake pedal was depressed, but the vehicle shuddered and failed to respond. The check engine warning light was illuminated. The contact depressed the brake pedal harder, and the vehicle responded. The contact stated that the failure had been recurring while driving, causing him to shift to neutral(N) while depressing the brake pedal. The vehicle was taken to an independent mechanic, where the diagnostic test codes: P0010, P0016, P0018, and P0507 were retrieved. The mechanic determined that the engine and an unknown part needed to be replaced. The vehicle was not repaired. Two unknown dealers were notified of the failure and informed the contact the VIN was not included in a recall. The manufacturer was not notified of the failure. The failure mileage was approximately 75,000.

I have a 2017 GMC Acadia with what I call a "Shift to Park" issue. This originally showed up with about 27,XXX miles on the car. It was repaired by the dealer on 9/25/2019. It worked perfectly until it started back up about six weeks or so ago with approximately 57,XXX miles on the car. I was told when it was originally fixed that they knew the issue and had an earnest fix. Not they want >$500 to fix a problem that they were supposed to fix the first time. Here is the issue. When you shift to park, and try to turn the car off, you get an error message that you need to "shift to park". I assume that the car is in park, but not sure with this warning message. You have to start it back up multiple times and play with the shifter. The other option is to let the warning keep flashing and wear the battery down. I have replied the battery on this car two times. When researching this issue on the internet, I see that there are several class action lawsuit for this issue so GM is well aware of the issue. They have apparently figured out the issue because it only affected the 2017 and 2018 Acadias from what I can tell. AS you can tell fro the mileage, this car has low annual miles and ha always been serviced by a GM dealer.

This is a known issue with GM 2016-2019 various models including my 2017 Acadia . the shift mechanism does not know that it is in Park position and so indicates "shift to park" on dashboard lights. Therefore ignition switch stays on and accessories that are on will run battery down in a couple of hours. Sometimes the engine will not cut off until you turn it on and off many times. The dealer estimates cost to fix of between $500 and $700. They want an additional $125 for diagnosis, which they already know problem. I found the Service Bulletin on it (19-NA-206) which calls for $42.43 in parts and 1.4 hrs labor. Many people are being ripped off on this problem, which should be a manufactor's recall ! They continued to use defective parts for years after they were aware of this hazard. Please HELP ! I don't think that I should have to pay for this repair!

My Wife and I purchased the 2017 GMC Acadia All Terrain in August 2017. It always had some low gear hard engagement issues. It also had issues of not locking into park when placing in Park. If we released and re-shifted it would engage. On two occasions we had the GMC dealership Durand GMC Leominster MA. check the transmission. Around 34,000 miles and again around 55,00 0 miles On both occasions they claimed they could not recreate the incident I complained about. I told them I believed that to be impossible as it was common, especially going up hill. The service manager was adamant that their was no issue. As I was close to my powertrain warranty expiring I asked again with the same response. In May we started having serious transmission slippage, It became dangerous so we took it to Durand and they found a hole in a fluid tube caused by wear from a support clip. Their repair cost was high, I took it to a respected mechanic. He repaired the tube, unfortunately, the slipppage got worst and we will replace the transmission. My internet research shows many incidents like mine. I want to make it known that my vehicle concerns were swept under the rug. GMC repair video link Please watch the video of YOUR vehicle at this website: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The shifter does not always engage and the car will remain in gear and can't be turned off. The safety issue is the vehicle rolls forward and backwards at times. I have hit my riding lawnmower under my carport because it continued to roll when in park. I have reported an issue in 2018 and in August 2019 a repair was performed and again in 2019 a gear shift assembly was replaced, It has been confirmed there is an issue with the shifter by a tech servicing my car when he drove it. It is at the dealer now 07-24-2023 to determine the issue and repair. Shift to park will come on inconsistently, however it will roll forward without the message.

Ever since I bought this vehicle 75% of the time I put the vehicle in park and turn the car off the “shift to park” warning light comes on and I have to jiggle the gear shift until it goes off and allows the car to turn off. This can take up to 10 min or sometimes starting the car and turning it off works but that is less times than not. This has been ongoing since I have owned the car.

The contact owns a 2017 GMC Acadia. The contact stated that while driving at various speeds, the transmission was slipping, and the vehicle would not properly accelerate. The vehicle was taken to the local dealer who replaced the camshaft and timing chain however, the failure persisted. The vehicle was later taken back to the dealer who later replaced the transmission. After replacing the transmission, the check engine warning light remained illuminated. A diagnostic test was performed, and it was determined that the camshaft and timing chain was faulty. The vehicle was not yet repaired. The manufacturer was not contacted. The failure mileage was 78,588. The VIN was not available.