99 Tahoe: Automatic Door Lock Feature Doesn't Work

[Snoogs99Tahoe]

Hello,

Normally, all my doors lock a moment after I start the vehicle, but last week this has stopped. Now I need to hit the lock button to get them to lock.

Does anyone know how to restore this feature and what system is responsible for it?

I've check fuses 13 and 'A' in the drivers side compartment. Both are fine.

Snoog

 

[GMCYukalade]

To be honest, i didn't know any of our Tahoes/Yukons came with that feature...

 

[newthom75]

i dont think they do i know my tahoe never did that

 

[GMCYukalade]

you have an aftermarket alarm or something?

 

[Snoogs99Tahoe]

My Bad

You're right. It was my alarm system that was the culprit. Alarm armed, problem solved.

 

[Hardwarz]

There's nothing in the BCM that controlls this?

Hardwarz