2011 Chevy Aveo accessories come on while off and parked

[sylvainm]

My daughter's 2011 Aveo LT is doing a weird thing. After sitting being turned off, the inside lights, headlights and radio will turn on... Other than a possible ghost taking residence in the car, what should I look at? Only codes I'm pulling with my Xtool D7 is a random U0100-04 and TCM lost comm.

[Eg.h2o]

A good place to start would be to check/clean your ground under the fuse box. It’s a common failure point in the rust belt. Make sure the wires are still good at the lug point, you may need to repair one or more wires before refastening them to the body. This could fix your U code which MAY be causing your other ghost.