Power Door Locks and Power Folding Mirrors Possessed!

blownZ71 · August 5, 2019

I am going to start with grounds on top of the dash that I saw someone having major problems with on another forum. Are there any other secret ground locations I should inspect?

White LTZ · April 23, 2020

I figured out this problem!!! It was my key fob remote! By a short of some kind the remote was randomly sending a lock signal just like I was holding down the lock button. Guess what? A few weeks later it started unlocking!! I pulled the battery out of the #1 key fob remote I was using and switched to backup key fob remote #2. No issues since.

HighCountry Joe · August 5, 2020

I recently had the same thing happen while on the road! Mirrors folded in, and when I pulled into a rest stop, the doors would lock as described. I replaced the battery in my key fob and the issue was resolved!

Khsh · August 12, 2021

I have a 2017 Silverado. Yesterday it started to do exactly what was described in previous posts. As I was walking out to get in my truck the horn would honk as though I was locking it with the FOB even though I wasn't doing anything. When I got up to the truck I had a hard time getting the door to open as it would lock right after I would unlock it with the FOB (it would also lock immediately after I would unlock in manually). I finally managed to get in and started it, then noticed the mirrors were folded in so I pushed the button to move them back out and as soon as the fully expanded they would fold in again by themselves. This occurred maybe 4 or 5 times, finally gave up and decided to drive home with the mirrors folded in. Once I threw it in drive and started driving I was able to get the mirrors to stay open. I will check the ground on the battery as some have suggested. If it is loose I will post a follow up later.

CAbeachbum01 · November 8, 2021

Mirrors, door locks and horn going off at all times of the day and night. I had this issue for several weeks, took truck into dealer who wanted $1500 to replace a body control module. I took to another shop to get second opinion and they could not determine the cause. I brought the truck home and decided to experiment with replacing batteries in my key fobs. I thought I was a genius as this worked for about 2 weeks until my wife took my truck and used her key fob which caused the problem to occur again. I removed the battery from her FOB and then only used my FOB to lock and unlock. Its been 3 weeks and no problems, fingers crossed. I suspect that I must have switched FOBs with my wife when I replaced batteries and believe that I have a FOB that is shorting out and causing the problem.

Edited November 8, 2021 by CAbeachbum01