Accessory power not staying on

[George Baker]

When I turn my 09 Silverado off my accessory power is cutting off at the same time, as well as the key left in ignition alarm though no doors have been opened. If it's a faulty door open switch wouldn't I be getting that symbol on my dash? Any idea what it may be?

[bamorris2]

Sorry I can’t help, but this is the 2019+ forum. You may have a better response by posting this in the correct forum.

[redwngr]

Are you losing all ACC power or just some?

Does the ACC power work in ACC position?

 

Once key is moved to LOCK/OFF it's in retained accessory power mode (RAP).

This mode supplies up to 10 minute power for

. Audio System
. Power Windows
. OnStar® System (if equipped)
. Sunroof (if equipped) 

Radio shuts off if drivers door opened, windows and sunroof if any door is opened. 

 

 

If it's a typo and the truck is a '19  then there  a slightly longer list of stuff that should stay on under RAP. 

 

Edited August 13, 2020 by redwngr

[George Baker]

I'm losing all acc power once turned off, and also getting key in ignition alarm. Acc power does still work in the acc position. Not getting the 10 mins anymore that should be there.