Recreational Vehicle Lpg Tank Valve/gauge problems of the 2015 Chevrolet Impala

While driving, side detection error. All gauges started jumping around and not working. After shut off car and tried to restart, it wouldn't turn over. Checked and battery was ok but ignition was acting like no power. Tow truck to the dealer. Dealer said it was a known issue and they would repair for free. That was 6 weeks ago and it is still sitting at dealer because the part is on back order. Chevrolet will not cover the cost of a rental vehicle. I have talked to 4 different people (I have kept escalating) over a 3 week period - however with no resolution. After my last request for escalation, they said I would get a call back in 3-5 days. That was 2 weeks ago and I've never received a call back. Dealership is unable to provide an estimate of when the part will be available.

Second experience where car shut off completely while driving at a steady speed. Foot is on gas, maintaining speed, all electronics shut off - lights, gauges - everything. Almost instantly, car restarts itself. Car has remote start, cruise control and push button start. Dealership states no error code recorded and charges $125 each time we complain about this. First time was around 30k miles. This was 59k miles. One owner (me).

First experience where car shut off completely while driving down a hill during a snow storm. Foot is on brake, slowing speed, all electronics shut off - lights, gauges - everything. Almost instantly, car restarts itself. Car has remote start, cruise control and push button start. Dealership states no error code recorded and charges $125 each time we complain about this. One owner (me).