In 2016, and again in 2020 after the dealer first fixed the issue, while driving at high speeds, on highways, also in the rain, again at a stop light, the vehicle suddenly decelerated, causing the potential for a very serious accident. The warnings then displayed on the dash included reduced engine power, service stabilitrak, service traction control, and traction control off. The vehicle only then drove at slow speeds, sputtered and jerked, and felt like it might stall. When able to pull over, at times turning off the car reversed the problem. Sometimes the check engine light was on, sometimes it wasn't. sometimes it would drive fine and then out of nowhere, it would happen again. In 2016, the dealership had a difficult time finding the issue. After several days of driving it, they identified the problem as a fuse box issue and replaced the fuse box. This seemed to fix the issue until it happened again in 2020 while driving. On a road trip, it happened while on a highway, again at a red light, and while on a highway again. Each time, we pulled over, turned the car off for a while. One time in particular, the issue didn't go away after turning the car back on.

- Oaklyn, NJ, USA

See complete history below in pdf involves stabilitrak and traction control

- Cedar Park, TX, USA

About a year ago, our 2014 Buick Enclave AWD, began shuddering while driving and lagging when trying to accelerate. 4 months ago, the vehicle's check engine light came on while I was on the freeway. It also displayed the "traction control off" 'stability control off" and "engine power reduced" signs on the dashboard. My vehicle went from 75 mph to 25 in a matter of seconds.. while I was on the freeway with my two children in the car! I was able to pull off to the side of the road, turn the car completely off and turn it back on again. This seemed to reboot the computer, but the check engine light remained on for several days. 4 months later, this has now happened about 16 additional times, 3 while on the freeway! we've replaced the throttle body, throttle body gasket, mass air full sensor, pvc valve and the power train module relay. We are continuing to have problems!! the most recent, this morning while taking my children to school. This on top of having to have the A/C evaporator replaced at least once/ year since we bought this vehicle brand new off the lot! I'm a little tired of putting my children's lives as well as my own in danger every time I take them and pick them up from school!

- Antioch, CA, USA

On 11/30, we turned on the car, the engine light on the dash came on to service engine. We took the car to the dealership. We were informed the problem is in the transmission. It needed a torque converter, a pump and new gaskets. They've had the car since 12/2, and informed us they were waiting for the gaskets which will possibly be two more weeks.

- Ypsilanti, MI, USA