In cold weather driving, 2017 chevy trax will throw a check engine light 20 minutes after startup, which shuts down the vehicles ability to maintain speed. this happens in town and on the highway. code says turbo freezing. the vehicle will go max 40mph uphill on the highway and max 60mph on flat or downhill highway. have to pull over because cars are coming from behind very fast in snowy conditions when vehicle will not maintain speed. the vehicle cannot accelerate from a stop either. very scary. in town driving is almost not possible without getting run into because you cannot get out of the way. we have 10 of these vehicles and they all do the same. chevy dealer says they have a fix, but cannot gets parts to fix. its been 4 months of this major safety issue with no help from chevy. i am fed up.