2014 GMC Acadia Powertrain & Transmission Problems

My 2014 GMC Acadia constantly displays “Service Stabilitrak,” “Service Traction Control,” ABS, brake, and check-engine warning lights. The vehicle will not accelerate past 40 mph under normal driving. Recently, the vehicle began showing “Engine Power Reduced” randomly without any warning, and the vehicle loses power suddenly. The OBD2 code P1682 (Ignition 1 Circuit/Relay failure) appears every time. This issue has caused the vehicle to jerk, lose acceleration, and even stall in the middle of an intersection during rush-hour traffic while my children were in the car, creating a serious safety hazard. These warnings and symptoms are constant, and the power-reduction events occur unpredictably. No official inspection has been completed by the manufacturer. The failed component is still in the vehicle and available for inspection. The malfunction affects traction control, stability control, braking systems, and engine power, putting occupants and other drivers at risk.

2014 GMC Acadia Denali When accelerating the car is sputtering and slipping. The RPMs are increased. There is a delay in shifting and it is rough. The car jerks and has a pause when accelerating. This is an expensive repair. Is GMC going to help or make it a recall? My local mechanic suggests it gets repaired as soon as possible or sell it - am not comfortable selling it with a bad issue. Unsafe. GMC needs to correct this. GMC - do your part and make this right for your customers. I read many complaints regarding this issue. How many complaints does it take before GMC will make a recall on this issue? I also have a recall on the airbag. I have been having an issue with the light on for 2 years and called many times on it. Last year they said there was no active recall. I see now that there is one. I called and was told that I should have received a letter. I never received a letter of the official recall and the repair is covered. I am now waiting 4-8 weeks for the dealer to get the part in and for them to then call me to schedule an appointment. Why do they not have them in stock? I have been scared every time I drive my 2014 GMC Acadia knowing at any point the airbag could go off at any moment or if I was in an accident it may not inflate to save me. This is terrifying as a driver. Especially knowing that serious injury or death can happen. I hope GMC is going to do the right thing and make the transmission issue a recall and have parts on hand at dealers to get repairs fixed. What is GMC going to offer me and other customers to help pay for this serious issue to be fixed? As well as, pay for a rental car while waiting to get the issues resolved.

Transmission failure - needed to replace the transmission Experienced rough shifting, slipping, or hesitation and then transmission failed while driving almost causing a multicar accident. This is a widely known issue for my vehicle year. GMC would not assist with any coverage of the repairs. This issue needs to be a recall.

The contact owns a 2014 GMC Acadia. The contact stated while driving 75 MPH, several unknown warning lights illuminated. Additionally, the vehicle made an abnormal clunking sound and failed to exceed 40 MPH. The vehicle was towed to an independent mechanic an independent mechanic, where it was diagnosed and determined that the transmission had failed and needed to be replaced. The vehicle was towed to dealer, where the same assessment was made. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 159,000.

Stalls while driving stability track and traction control shut off

Vehicle stalls intermittently. Due to an earlier recall of the same model but not including the one I own. There is electrical shorting inside the fuse box in the ignition circuitry that causes this problem. This is a huge problem as there is no preemptive warning. Whether you're driving 5 mph or 55 mph it happens suddenly and without any warning. The incident is stored in OBDII codes. There are no warning lamps until after 5he vehicle stalls out. #PIT5643. GM#14515. YouTube channel "Sparky's Answers" 2014 GMC Acadia, Stalls Sometimes, Codes - P0689 , P1682

Transmission slips, shifts hard, and RPM gets high before shifting.

1.- Found water in the doors electrical connectors, the radio, alerts, blinkers sounds stops working and makes an electric short circuit sound. Informatic radio systems works on and off. 2.- break pedal with unusual play this make the stop lights turn on all the time and triggers the stabilitytrack system fails the car it’s like speeding up and down. 3.- the previous problem play in the break pedal triggers a transmission malfunction Does not change gears and makes the engine loose power preventing a major damages but at same time it’s very dangerous while driving because we never know when it will happen the failure.

The contact owns a 2014 GMC Acadia. The contact stated that the vehicle was taken to the dealer for a routine inspection; however, the contact stated that she was informed by the technician that the vehicle failed to shift into gear as needed. The contact stated that she was informed by the technician that while shifted into reverse(R), the technician attempted to shift back into drive(D), but the vehicle failed to shift. No warning light was illuminated. The vehicle remained at the dealer and had not yet been diagnosed or repaired. The manufacturer was notified of the failure and the contact was informed that the VIN was not included in a recall. The contact was referred to the NHTSA Hotline for assistance. The failure mileage was approximately 156,000.

The contact owns a 2014 GMC Acadia. The contact stated that the AWD warning light was illuminated. The contact received notification of NHTSA Campaign Number: 23V334000 (Air Bags); however, the part to do the recall repair was not yet available. The local dealer was contacted. The vehicle was not diagnosed or repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure with the air bags. The failure mileage for the AWD failure was approximately 175,000. Parts distribution disconnect.

When I turn a corner and accelerate, the vehicle jerks as if the transmission is slipping. I called Gmc and made an complaint. My vehicle has just over 50,000 miles on it. Very concerning

My wife was driving at highway speeds (70MPH) on the interstate in Chicago when without warning her cluster lights appeared and her vehicle lost propulsion (stalled, Stall, died). She had no warning and the area had no shoulder for her to pull off into so she had to come to a complete stop in the right lane of the highway. People are doing speeds well above 70MPH, I would hate to think of what could have happened if a person or line of vehicles could not change lanes in time; very serious injuries and possibly death for all invovled. Fortunatly, she had the sense to put the car in park (highway lane) and completed a key cycle thus restarting the vehicle and then obviously accelerating quickly to get out of harms way. As people are swirving out of her lane and honking at her. I put our VIN into the NHTSA site and see the vehicle has no outstanding recalls. Then i search just the model year and come across a recall (14V-614, GM recall number 14515) that appears to be the same issue we may have had. In the vehicle information section of the 573 it lists: Descriptive Information : 2014 GMC Acadia Production Dates : JUN 27, 2013 - SEP 26, 2013 Plugging my VIN into a VIN decoder, i see that my vehicle was built July 26, 2013; this falls within the suspect time of this recall. Why have I not been notified of this recall? Why is the NHTSA tool not show my vehicle as being affected? This could have been a very a tragic ending. I hope you (NHTSA) reach out directly to GM to figure out why my vehicle was not included in the recall. Why my wife was put in harms way.

The contact owns a 2014 GMC Acadia. The contact stated that the vehicle failed to shift into Park. The contact stated that the key ceased in the ignition and would not allow him to shut-off the vehicle. The contact stated no warning light was illuminated. The vehicle was not taken to a local dealer nor independent mechanic to be diagnosed. The vehicle was not repaired. The contact was relating the failure to NHTSA campaign number: 14V092000 (Power train). The manufacturer had been informed of the failure and informed the contact that the Vin was not under recall. The failure mileage was approximately 106,000.

CAR WAS BANGING INTO SECOND GEAR PERIODICALLY SINCE THE DAY WE GOT IT AS A CPO ABOUT TWO YEARS AGO. THE DEALER SAID IT WAS NORMAL. FAST FORWARD TO LAST WEEK WHEN ALL OF A SUDDEN THE CAR WAS BUCKING AND SLAMMING INTO GEARS AND STALLING OUT AT LIGHTS. WE BROUGHT IT TO THE DEALER AND THEY SAID THAT THE CAR NEEDED A TRANSMISSION AND IT WAS OUT OF WARRANTY. GM CORPORATE DID NOTHING TO HELP WITH THE COST AND NOW I'M ON THE HOOK FOR A $6,000 BILL. PLUS I HAVE TO FIND A RENTAL CAR TO WAIT FOR THE BACK ORDERED TRANSMISSION TO ARRIVE BECAUSE OF THE STRIKE. NEVER AGAIN GM

TL* THE CONTACT OWNS A 2014 GMC ACADIA. WHILE DRIVING VARIOUS SPEEDS, THE CONTACT ATTEMPTED TO DEPRESS THE ACCELERATOR PEDAL AND THE VEHICLE STALLED FOR APPROXIMATELY 2 TO 3 SECONDS AND THEN JERKED WITHOUT WARNING. THE VEHICLE WAS TAKEN TO DESERT SUN ROSWELL (1266, 2601 W 2ND ST, ROSWELL, NM 88201, (575) 625-1000) TO BE DIAGNOSED, BUT NO FAILURE WAS FOUND. THE FAILURE RECURRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND INFORMED THE CONTACT THAT THE VIN WAS NOT INCLUDED IN A RECALL. THE FAILURE MILEAGE WAS APPROXIMATELY 82,550.

120,000 MILES WHILE FRONT AXLE IS OUT AND TRANNY JERKS A LOT.

I have had the same problem for 3 years now and have taken my vehicle to a GM dealership many times for the same issue and it is definitely an issue . My car keeps throwing up TCM issue and ECM and I have asked for the modules to be checked. I have reasearched these issues and it seems to be the same with many vehicles like mine so that should be a red flag. My car will slow down, power reduce engine, traction control off, and my steering will be difficult and sometimes I can’t even get off the road in time, which is very dangerous. I have seen recalls on electrical issues and wonder if my vehicle has damaged recall parts. I am a single mother who has to work and get my child to school and can’t do so properly with my vehicle doing this all the time. It’s very frustrating.

THE MODULE FOR THE SIDE BLIND ZONE ALERT NOTIFICATION SYSTEM, BACK UP CAMERA, TV'S/DVD'S QUITE WORKING AFTER IT WENT THROUGH THE CAR WASH. WHEN TAKEN TO THE MECHANIC IT WAS SAID IT MODULE WAS FILLED WITH WATER. ATTEMPTED TO HAVE THIS ADDRESS IN APRIL OF 2019 AND NOW OTHER THINGS ARE GETTING WORSE! SIDE MIRROR LIGHTS ALWAYS ON.

WHEN STOPED ON A HILL THE TRANSMISSION GOES INTO NEUTRAL & THE CAR ROLLS BACKWARD DOWN HILL WHEN YOU TAKE YOUR FOOT OFF THE BRAKE TO TAKE OFF AGAIN. TOOK IT TO A GMC DEALER &A THEY TOLD US THEY DROVE A 2013 ACADIA & A 2015 BUICK WITH THE SAME DRIVE TRAIN AS OURS & BOTH CARS ROLLED BACK LIKE OURS SO THEY DETERMINED IT WAS "NORMAL"! I WAS A FORD TECH FOR 32 YEARS AND NEVER RAN INTO A PROBLEM LIKE THIS, I DO NOT FEEL IT'S NORMAL. WHAT WILL HAPPEN IF WE ROLL BACK INTO ANOTHER CAR OR HIT SOMEONE WHO WALKS BEHIND THE CAR?? THIS HAS HAPPENED COMING OUT OF PARKING LOTS NEAR OUR HOUSE, & IT HAPPENED ON I 40 WHEN WE WERE GOING TO TEXAS FOR VACATION THERE WAS AN ACCIDENT AHEAD OF US & WE WERE STUCK IN THE HILLS OUTSIDE WILLIAMS ARIZ I HAD TO DRIVE WITH ONE FOOT ON THE BRAKE & THE OTHER ON THE GAS TO KEEP FROM ROLLING BACK IN HEAVY TRAFFIC. THANK YOU FOR YOUR TIME

WHILE IN MOTION, THE VEHICLE FEELS AS IF IT MISS-SHIFTS. IT DOES NOT MATTER WHETHER IT IS ON A HIGHWAY OR CITY STREETS, FROM TIME TO TIME, IT WILL FEEL LIKE THE SUV PULLS BACK OR "SKIPS A BEAT."