Check Engine Light On problems of the 2014 GMC Acadia

My Acadia has shut off without warning multiple times. Today, I was in a parking lot picking up a prescription. The car was idling while I was waiting in the pick-up lane and then shut off. The dash remained on and gave the following warnings: traction control off, engine power reduced, service stabilitrack. I tried to restart the engine only to have the car shutter violently while idling. I turned the car off again and then restarted for a second time. This time it restarted as normal and the check engine light came on. I have taken it to a dealer 4 times since October as it has shut off while driving and making a turn. The dealer says there are no codes in the diagnostics and cannot find a problem. I'm terrified to drive the car. I saw a recall from 2014 about an electrical short but I don't know if that was already fixed on this vehicle since I bought it used. I also don't know if this is even related to that recall.

2014 GMC Acadia went abruptly into what they call limp mode. The engine lost power, with a massive shutter throughout the vehicle, numerous warning lights on dash, saying reduced power, low voltage, traction control/stability control and check engine light. I have done some online research and seems to be a big issue for the Acadia! a recall to general motors is in order so all these safety issues get addressed as soon as possible. There are stories that the dealers have fixed them but a week or two later the issues returned. Please help us.

My 2014 GMC Acadia shuts off from time to time while driving down the road with no warnings and there is no active codes on a scanner no check engine light comes on when this happens radio keeps playing and dash is still lit up but engin is not running this results in a loss of power steering and the brakes not working properly once you get the car off the road and turn the key the car starts back up and continues to run normally this has happened two times to me in about a 3 week period not sure what the issue is but I googled the problem and found a lot of the same issue every time this issue occurred it was while turning on to a busy street. I feel someone is going to be seriously injured or killed do to this problem.

The contact owns a 2014 GMC Acadia. The contact stated that the check engine warning light was illuminated. The contact took the vehicle to jim curley Buick GMC of keyport (400 NJ-35, keyport, NJ 07735) to have a diagnostic test performed. The technician retrieved failure codes: p0018 and p0021 showing that the timing chain and camshaft actuator were no longer performing properly. The contact was informed that the timing chain needed to be replaced. The contact also wanted to state that the vehicle was taken to same dealer several times for the engine light being illuminated however, the dealer cleared the engine codes under the vehicle warranty. The vehicle was not repaired. The manufacturer was contacted. The failure mileage was 44,547.

The contact owns a 2014 GMC Acadia. While driving 40 mph, the vehicle began to vibrate and the traction control, electronic stability control, and check engine warning lights illuminated. The contact mentioned that the vehicle failed to accelerate when the accelerator pedal was depressed. The contact also stated that the vehicle had to be restarted in order for the failure to stop. The failure recurred intermittently. The vehicle was taken to an independent mechanic where it was diagnosed, but the cause of the failure was not found. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 24,000.

I was traveling on the highway at about 70 mph in the left lane and the engine began to sputter like it was going to stall. It dropped my speed to 60 without warning. I had a vehicle behind me going the same speed and had to quickly move to the right to avoid getting hit. The check engine light came on and the traction control / stabilitrac turned off. Brought it to the dealer and they told me I was using the wrong gas. They cleaned carbon out of the intake valves. I have put gas in it twice since then, at shell, which is what they told me to use. It happened again today 12/9 when I was going around a corner in the rain. This time it said service stabilitrak and service traction control with the check engine light flashing and the engine sputtering. I had been going through a puddle at the time so I almost lost control of the vehicle. Called the dealer and they told me they had no record of me bringing it in on the 21st. I am bringing it back to them on the 15th because that is the first time they will have a loaner available for me. I am now afraid to drive my car because of the danger of sliding and losing control. I have no warning of when this is going to happen and I have not been able to pin point it happening at any certain mileage or such. Very scary when it happens.