Poor acceleration causing increase in force on gas pedal. happens at random times while on flat surfaces, going up hill, around curves with ac on or off. once acceleration kicks in, speed increases causing the need for applying the breaks. requires additional space when pulling out on the road to ensure enough time to achieve proper speed. took to certified dealership for service. tech unable to duplicate issue and since no codes or service light, they are unable to fix the issue. picked up the car from dealership. next day issue continues. car would also continue to accelerate when foot removed from pedal (almost like cruise control was on), pressed on breaks which did not make a difference. had to move to side of road & continue try & stop. made a second appointment to return car back to dealership. afraid of transporting people in vehicle due to unknown/sticking accelerator issues.
The 2017 buick encore would blow out a large amount of white smoke and die in colder weather anytime you step off the gas pedal. it did re-start, however would die several time immediately until it stop smoking. once it hesitated at highway speed when i let off the gas due to traffic and almost died. the dealership stated that the car computer showed no problems and nothing could be done. they admitted it should have recorded the problem i had, but did not. but the computer was still trustworthy to advise if the car had a problem. i has two near collisions due to the care problems just a few weeks prior to taking it in. i was advised that it was not possible to obtain a print out of the what the inspected because it was in the computer and non-printable. i feel the vehicle is unsafe to car, not knowing if the engine will just stop, and not able to find out why it stop in the beginning. the dealership advised i may need to wait till nest winter to check it again. the fact it almost cause an accident was not important.