Car Stall problems of the 2012 Chevrolet Sonic

The contact owns a 2012 Chevrolet Sonic. While the vehicle was stationary with the key in the ignition, the vehicle started up without warning. The vehicle began to shake and the contact stated that the auto-start feature may have malfunctioned. On another occasion, while driving 50 mph, the vehicle began to shake again and seemed as if it would stall. Bell pierre Chevrolet in seattle, washington was made aware of the failures by phone. The vehicle was not repaired. The manufacturer was made aware of the issue and referred the contact to the dealer. The failure mileage was approximately 27,500.

My vehicle has been a nightmare. In January I visited the dealership because my heater was not working. At that time I was told I would need to replace my battery soon that it had some leaking acid. Three weeks later I replace the battery. At that time the dealership installed a new battery and sent me on my way. Ive spent thousands since then repairing what the dealership described as a electrical nightmare. I also have told the dealership several times that there are transmission problems with my vehicle. I insisted they drive with me and although the transmission issues have been acknowledged, the dealership has been busy repairing the electrical damage of the battery, the have never touched my transmission. I still have transmission problems. My car hesitates and doesn't accelerate causing me to almost wreck several times. I also have had several ignition problems with my vehicle. One occasion my vehicle would not turn off. The key was in the off position but the car remained running for several hours until the battery was dead. Anther occasion I was pumping gas and the vehicle was turned off. My two young children were in the vehicle and the car started cranking itself. It attempted to start three different times. My car stalls at red lights and will decelerate in the middle of heave traffic. I am frightened to drive my vehicle and fear for me and my childrens safety. I have contacted gm several times and have had my car in for repair numerous times. My salesperson advised me to file a lemon law report and my mechanic described my vehicle as an electrical nightmare. No gm rep can explain why my vehicles battery would have caused this much damage being my car was less than 2 years old. Please help.

Stalls easily and frequently when pulling out from a stop and is then difficult to restart, or I must wait about 5 seconds before I can attempt a restart. Uneven idle most of the time. . Read more...

Vehicle stalls when pulling out from a stop, and/or at low speeds when the clutch is pushed in. Then, it takes three seconds before the car can attempt to be re-started! very dangerous when turning left across a highway or into traffic, especially since there is what seems to be a 'programmed' waiting period of 3 seconds before you can attempt to re-started. I've owned this vehicle (1. 4l turbo engine with 6 spd manual transmission) since 05/21/2012, and over 8,000 miles later, it still stalls every time I drive it. The dealerships say, "cannot reproduce. Operating to specifications. ".

Issues began with an intermittent rattle at cold start after car had been sitting about 30mins to an hr, from being driven. No codes showing so went un-repaired, once pinpointed, it was replicated, still no codes, no fix, starting about Aug 2012 after my 1st service car began to shake at idle while stopped in d, started getting worse progressively. Vehicle stalled in middle of intersection while trying to shift itself (auto trans) into 3rd, violent jerk to a stop and immediately picked itself up and jerked forward and moved, with my children in the car. Next stall occurred about 3-4 weeks later, idled so rough and low while in d at a stop light, car bogged down and stalled, started itself right back up. Engine power surging began at this point. While braking or on brake while stopped, engine would power surge thrusting car forward, came very close to hitting several cars while pulling into parking spot from these surges. Had taken vehicle in multiple times between 1st occurrence and this point in sept. It was duplicated with multiple symptoms at once, including as given from dealer: hard shaking, misfire, and rattle/knock at cold start. Only code to show was for the misfire, repair: valve cleaning, not fixed. Rattle became a knocking. Idle meanwhile getting rougher. Took back for knocking, surging, rough idle, stalling. No codes, repair: gm tech assist had camshaft actuators replaced , fixed knocking/rattle at cold start only! idle worse, now loss of engine power intermittently causing vehicle to hardly move, had vehicle back less than 24hrs. Almost had a "t-bone" accident and head on into a pole in same incident due to said loss of power. Asked for replacement (after 7 service repair attempts), request presently in limbo, no offer of replacement thus far! I am severely concerned for my family's safety at this point, clearly defective in itself with no codes showing.