19 problems related to power train have been reported for the 2012 GMC Acadia. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2012 GMC Acadia based on all problems reported for the 2012 Acadia.
Ratle sound in the engine thinking it may be the timing chain. Code p0430 came on stating catalytic converter bank 2 needs replaced. We replaced O2 sensor downstream on bank 2 code was cleared by shop. After driving a few miles same check engine light came on and I took it to the shop they hooked it up to run the code and it was the same p0430 again.
Transmission is slipping, shuddering at low speeds making car unsafe to drive.
The transmission has all the symptoms of a broken wave plate and/or torque convertor as reported in the first generation t75 transmission service bulletin. This started occurring at 120k. I know the service bulletin was for the 2007-2009 models but the 2012 had the same exact transmission and waveplate. The car feels like it's going to shudder out and die on the highway.
No warning light when transmission went out. Traction control/stabiltrac service light came on, doors locking and unlocking, not stating what gear Acadia was in. Check engine light eventually came on, after it stalled twice on highway. Vehicle is at GMC dealership service department and they are saying its not communicating and are checking wiring harness wires. I have replaced transmission and torque converter and now I dont know what to expect now. Only had it for 3 years so far. I almost got rear ended when it stalled twice before backfiring and a rough swift shift.
I noticed shuddering while driving my car and when I took it to my mechanic upon test driving and inspecting it he realized the torque converter is not strong enough for the size of the car. He informed me driving it with the improper size will cause it to shudder and accelerate or not accelerate correctly while driving and cause slipping while shifting gears. Those issue have been happening the entire time I've had it and if the car slips and goes too fast or slips and loses power it is a danger to me and the other cars on the road. There were no codes or warning indicators while this is happening.
We just purchased this 2012 GMC Acadia about 30 days ago and every day we drive it we have this issue. . From a complete stop when pressing the gas the truck feels like it has no power starting to go until the rpm’s each maybe 4500 then the truck will jerk and studder through the intersections. I feel like we are going to be in a major accident while proceeding through intersections. The dealer states there is nothing they can do. There is absolutely something wrong when it jerks and stutters to move.
The automatic passenger side window does not work anymore, it went out a couple months after I bought it. I have always done maintenance on my vehicle, oil changes, tires, etc. And the timing chain went out on it for some unknown reason. Very pricey to fix. I would hate to be stranded with my 6 grandchildren with. With all the complaints on the timing chain, this should be a recall.
The contact owns 2012 GMC Acadia. The contact stated that the vehicle was taken for the state mandated smog test and he was informed that there was an issue with the transmission. The contact took the vehicle to the local dealer to be diagnosed. The contact was informed that the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 104,000.
Was waiting on dealership to catch up to bring in for a transmission problem. I know it is transmission related due to not wanting to shift properly and the fact my friend has same make and model only about 100000 more miles than mine does was doing same symptoms and she took to 3 or 4 mechanics and all said nothing wrong. . No codes show up. . . Needless to say after about 2 months it stalled out on her on interstate with speed limit 75 and she barely moving. I myself was at a sharp curve in turn lane waiting on traffic and when I braked to stop it made horrible sound and felt like brake was pushed through floorboard. When I was clear to go I push accelerator down to the floor and am barely inching along and am now stuck in the road in a 90 curve where its hard to see traffic coming. This was very scary and traumatic having this happen. I'm just glad it was only myself and the other drivers were being observant and paying attention to the road. This has happened a lot compared to research on blogs car complaints websites. The common problem is it doesn't give a code when diagnostic checked. 99% of cases show they best guess or find something else wrong and you pay 3 or 4 charges until you finally convince them its the transmission and then you're out 5000. Not counting the average 4500 you've already pd due to not listening to the driver of their vehicle and causing unnecessary charges and leaving you without a vehicle too long that isn't necessary.
Instrument cluster malfunctions while driving. All gauges stop responding and automatic controls become disabled. All dashboard gauges become disabled and unresponsive and looses information. The dashboard light brightens to day mode. Automatic light system, cruise control, automatic lock system, blinker indicator, radio, dvd player, seat belt signal, driver door buttons, and holographic display become disabled. Information reads park assist off, service air bags, check gauges and all fault lights display. Issues occur while driving and relatively. The onset, frequency and duration of issues fluctuate at random.
My 2012 Acadia only has 112,000 miles on it, and I am having transmission issues. It started as a vibration (washboard sound) for about 5 seconds when you were traveling at 55 to 65 mph. I have had my vehicle serviced regular. After having it in the shop 3 times for the same vibration, I was finally told it could be the transmission. It is sad that I have such a nice vehicle and will have to trade because gm will not do anything about the faulty transmission. To replace the transmission it will cost at least $5,000. 00. This could keep me from purchasing another GMC. The problem is on going unitl I decide, repair or trade.
The rpm gauge is fluctuating up an down when I'm driving down the road, highway, city roads it is happening when cold or warm and it don't matter if it's flat roads or a incline. It been happening more an more now.
Tl the contact owns a 2012 GMC Acadia denali. The contact stated that the vehicle often decelerated independently and would not exceed 30 mph. Also, the doors would unlock and "service stabilizer bar and service traction device" appeared on the instrument panel. The vehicle was taken to autonation of laurel (500 washington blvd, laurel, MD 20707, (866) 255-2985) where it was diagnosed that a new wiring harness needed to be installed. The vehicle was repaired. Two weeks later, the repair failed. The vehicle was taken back to the dealer three times for repairs and was currently waiting on another repair regarding the transmission's modular harness. The manufacturer was not made aware of the failures. The failure mileage was 89,000. The VIN was unknown.
Vehicle jerks at certain speeds, oil in throttle body, slow changing gears, rpm's not adjusting correctly . This happens everyday usually between 30-50 miles per hour. Airbag light stays on at all times and never goes off.
The contact owns a 2012 GMC Acadia. The contact stated that three days after the vehicle was purchased, the contact was unable to start the vehicle. The contact also stated that the check engine warning light later illuminated. The vehicle was taken to kindle auto plaza Ford (523 stone harbor blvd, cape may court, (609) 465-5000), where the starter, the timing chain and the transmission were replaced. Additionally, the air bag sensor light illuminated while driving at an unknown speed. The vehicle was taking to the same dealer, where the front passenger's air bag sensor was replaced. The sensor failure recurred several times and the dealer referred the contact to the NHTSA. The manufacturer was not made aware of the failure. The vehicle was not repaired. The failure mileage was approximately 91,000.
The first thing that I want to say is that some of the recalls are not for the 2012 model but mine has had the issues with the fuel moduler not reading correctly as in one recall and also the shifter clip causing the vehicle to not be in the correct gear. What do I do? also the second thing is the a/c broke within the 3rd year of having it. The third thing to go wrong is the power steering. It comes and goes but as long as I push on the gas I have power steering. I'm very concerned about the fuel moduler because my daughter drives this vehicle also traveling the interstate to work and also a very populated secondary road.
Axle rod pulled out of gear box causing the entire wheel/tire assembly to fall down. According to dealer the assembly had not been "machined" at all at the factory and could have failed at any time. The rivets were not pulled out is how this determination was made. It happened with no warning after turning left onto the highway from my driveway at a low speed. Car was unable to be steered or stopped coming to rest about 30 yards after failure. Dealer has informed us that GMC manufacture requested the parts be returned to them and this may become a recall issue due to the fact that the rivets should have been flattened on the assembly line when hit by the machine, they obviously were not and they need to determine how many vehicles may be involved. This is a big, bad deal and could have killed us if we were traveling at any higher rate of speed. Other lives are most likely in danger. The consumer stated the left front lower ball joint separated from the control arm. The rivets holding the lower ball joint were never installed correctly.
Tl-the contact owns a 2012 gma Acadia. The contact stated that he put the vehicle in the drive position, and applied the accelerator, then the vehicle made a jerking motion. The failure recurred multiple times. The vehicle was taken to a dealer for diagnostic testing. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was unknown. Mf.
When operating at various speeds, inclines, and various temperatures, it lurches, fluctuations on tachometer. Dealer has known about the issue since I bought it brand new and informed me that general motors is aware of the problem with transmissions with this year and model, but has no plans on replacing transmissions or addressing this. It is a defect with my 43,000. 00 dollar investment, which could directly affect the value of my investment. The mileage is 17,500. Please inform me as to what can be done about this. Sincerely, alan h. Adair 6538 colossal cave av. , las vegas, nv 89131 ph 702-463-1125 thank you.