When it rains most if the time the vehicle onstar sets off alerts for my antilock brakes and stability to be checked. dealer said it is normal and not concerning but checked at the 1 year inspection for me. npf. a month later a rainy day, alerts, and the vehicle wouldn't start. all the lights came on, 'press brake to start' appeared but pressing break did not start it. after an hour of trying various 'tricks' it started with the remote starter. a week later same thing. rain, alerts, and no start. this time 2 hours of trying various tricks- (emergency break on off/ park pushed all the way up, wheels forward, remote start attempts, onstar diagnostics etc) i had to have it towed. the mechanic from aaa tried and nothing, we towed an hour back to dealership and he tried once more, nothing. next morning the dealership reported npf. i am picking it up tomorrow but expect to report this happening again soon.
8/14-car was lacking power, service manager was able to duplicate issue on road test . 8/24-car service for rough idle and lack of power, service stabilitrak light on and check engine light on with an error code of p0171. in september, car started to shake while in park but no check engine light, dealer advise unable to do any repairs unless check engine light on. 11/27- check engine light on again for same code, p0171. vehicle is currently in shop. vehicle has had the same issues dec 2018 and at the time of purchase. gm dealers are not able to fix turbo issue and p0171 issues. my vehicle is not operating as designed and it is a safety issue.