2015 GMC Acadia: check engine light

Filed May 2, 2025 · Engine · FL

The engine is not shifting properly, and the vehicle loses speed while driving and hesitates to accelerate. At time, it feels as though the car is not moving at all. This issue has occurred on multiple occasions, affecting both me and my family, and has forced us to pull over because the vehicle could barely move forward. This happed once on the highway and almost caused an accident. Additionally, the check engine light remains on at all times.

Filed Apr 23, 2025 · Transmission · PA

Torque converter is going bad, hard shift when going slow then speeding up, stuttering at random times, vibration, hard shifting into reverse. No check engine light. Acadia known for transmission and torque converter problems.

Filed Dec 20, 2024 · Transmission · CA

Check engine light is on. Shudder and delayed reaction after engaging the gas pedal when moving forward in gear 1 & 2 then again seems to intermittently has issue with higher gears when on the hwy. Without warning, Several times the Acadia would not engage gears and wouldn't move at all after backing into the street from driveway. I had to have someone help push the Acadia back into the driveway. The Check Engine light keeps turning on and off. Had O'Riely check th OBD with code reader. "Torque Converter Selenoid is stuck 'ON'. Was informed by Costco there was n 2020 Recall for Acadia"s of my year regarding a Transmission recall Ref #N202313440.

Filed May 26, 2022 · Acceleration, Engine · IA

Today I encountered a problem with my vehicle that not only put myself at risk but my children. This problem came out of no where since I have not had any problems with my vehicle before today. When going to leave I turned my car on to have it stall and die. I had someone come out and look at it and got it to work by pushing down on the gas pedals. Said nothing looked wrong since there were no check engine light or any codes coming up on the dash. So I proceeded to leave and go get gas. When going to start my car again it stalled yet again and showed a check engine light. The car then started to smell like smoke and gas to where I immediately turned to car off and had my kids get out. I then tried to start my vehicle again and thankfully was able to get it to work with the check engine light showing. I called the car dealership that I go to for my oil to let them know I’m coming and that it stalled again with the check engine light showing. I made it to the shop and they ran diagnostics on it to show that it was a time change in the engine that was messing up. They then proceeded to let me know that I would have to go to a GMC shop because they can’t do the work at their shop. He then proceeded to tell me not to drive in this because the car will stall in motion and will not go faster than 45 without dying or shutting off. Which to me is a major safety concern since I have to drive it to the shops and let along home with my children in the car. So the whole way I couldn’t go over 45 without my car starting to stall and shake. Thankfully it didn’t shut down with my kids in the car on a main road.

Filed Jul 31, 2021 · Transmission · NJ

I have taken the vehicle to be repaired 5 times already and GM still refuses to acknowledge the full extent of the issue. My transmission was repaired under 100k miles while under warranty coverage for a slipping 3rd gear, excessive shudder, and hesitation. After a 3 attempts for repair, the 4th involved keeping the vehicle for a number of weeks and replacing internal transmission parts. Within 2 months, the symptoms returned but was out of warranty. The service center refused to diagnose it further without a $1,500 "diagnostics fee". I have brought the vehicle multiple times to the dealership, and have contacted GM seeking assistance on the matter. While the dealership service centers continue to focus on other parts and/or smaller sub-components of the transmission, my vehicle remains UNSAFE to drive outside of my immediate locality. I suffer from stalling, failure to maintain speeds, I cannot pass vehicles, I cannot maintain or obtain highway speeds to keep up with traffic. I have taken it yet again for repair, where the service center refuses to acknowledge the problem. They blamed it on a sensor and sent me on my way, but not only 30 minutes later did the symptoms return full-force. The Check Engine Light has reappeared. Prior to the visit earlier today, it was recently tripped at P0796, Pressure Control Solenoid C stuck or closed. I was on the highway today with avg traffic going 75 MPH. I was unable to merge into traffic and almost got pushed off of the road as a result. The truck also slipped when travelling inclined over the walt whitman bridge in to Philadelphia. It resulted in a bridge closure for 45 minutes while I could get towed off of the bridge. Once i got to the service center, as always, but will not drive over 45 MPH unless its up to 4600 RPM, steadily. This has got to end. Please Help.

Filed Oct 15, 2019 · Driver assistance, Steering · 89,000 miles · FL

It has been since I bought the vehicle ... Gas gauge is intermittent and cross traffic alerts go off randomly (with no traffic or obstructions) paint has had to be redone leather replaced trim redone etc... The car almost killed me and my children, I'm driving down the freeway at 70mph and suddenly I lost control of the vehicle it slowed down to 49 then 25 lost steering and able to drift to the side before the whole vehicle started shaking violently and I shut it down as I believed it would explode (I was terrified) I called a dealer and they asked if I turned it off and on again ? Engine light came on traction control would not renegade and message said decreasing power to engine while it was happening and ABS light on ... All failures... Managed to get to destination but vehicle was sluggish and jumping gears felt really jerky... 4th start all lights disappeared and although car was still sluggish figured might have been an electrical fault made appointment for dealership told it would cost ... Parker car drove other vehicle then had to use this one and same thing happened again so took to dealership they couldn't figure out the codes was told had broken engine mount (said it was on backorder as it's been happening a lot) and was sent on my way to see if it would happen again. That weekend it happened again had figured out by then that 5-7 starts it would act up. Took to dealership and left running so they could see what was wrong (failed transmission, steering column block pump sensor etc replaced. Was given a rental gmc by herts and you guess it same thing on freeway all the lights on the dash start lighting up failed traction eas and breaks (super scary brand new only 600 miles on that car) switched out vehicle for a safer car (toyota) I'm unable to check more boxes but speed and control were also affected

Filed Aug 31, 2019 · Steering · 47,000 miles · CT

The steering wheel locked up while driving. I also was not able to turn suddenly. This could have resulted in serious bodily harm had I been going at a speed on a highway. There were no warning signs, no check engine lights, no malfunctions, the steering wheel just stopped working.

Filed Nov 7, 2018 · 41,456 miles · DE

Had car serviced at dealership 11/02/18 because engine light on. 11/07/18 started vehicle noticed running louder than usual, when I shut off vehicle, fan still running. Notice gas handle seems to fluctuate. Started vehicle, it made thumping noise, then shut off by itself. Engine light on. Started vehicle and it accelerated/revved high. Tried to start vehicle, made clicking sound but never turned/started, strong smell of gas. All instances vehicle was stationary.

Filed Jul 12, 2018 · Acceleration, Driver assistance · 88,000 miles · AZ

On 15 plus occasions, while the vehicle is stationary, in the parking gear and running, the front end will start to vibrate mildly, increase in intensity and then the traction loss light illuminates, a blinking engine light illuminates, "service stabilitrak" and "service traction control" messages appear. Then traction contol off appears, followed by an audible loud click and vibration ceases, messages disappear and lights turn off. Once while vehicle in drive and being operated on a roadway, I pulled right at an intersection to have this same sequence happen during driving, resulting in an almost complete loss of power and acceleration and a near accident. The sequence was identical and once the errors cleared the vehicle accelerated rapidly and forcefully. I have documented multiple occasions on video while stationary over a multi month period and have furnished those documents to my local gmc dealership which has failed to repair this issue and today returned my vehicle to me with an apology for not being able to remedy the problem. They claim that the vehicle must exhibit this behavior in their presence to warrant a fix. The vehicle is under an extended warranty that clearly covers these problems. I would be happy to email the videos, but they are not in the supported format and likely larger than 5mb.