Truck starts on its own

rhagfo wrote:

Busdriver wrote:
Last night was watching tv heard my truck start . Went into my garage truck was running all lights on dashboard was flashing, Has anyone else had this to happen? The key was off
2019 Duramax. 2500 HD 80 thousand miles

Does the truck have remote start? If so did you or DW have a fob in a pocket or purse that may have gotten bumped.

If no remote start I would replace the ignition switch.

at least on my 2015.5 duramax and my 2004 duramax in order to do a remote start with the fob (a) the vehicle must be locked and (b) you must hold the start button long enough for the truck to start. at least 5 seconds, longer when the truck is cold. so, highly unlikely it will be a "pocket start". Same if you use the phone app.