these damn automatic door locks are annoying! how do I disable them on my 99 gmc Z71? the manual only says to take it to a dealer

 

Get a '00+ truck. They're not a problem on '00+ trucks because when you pull the key the doors unlock. :p

Maybe the dealer could update the PCM to do this on your '99. I don't know what sensor/computer functions know when the key is pulled.

 

I will take it to trade in tomorrow

 

Only those with a Tech2 scan tool can turn them off on the 1999 and some early 2000 trucks. Go to your service department and have them look up this TSB:

File in Section: 08 - Body and Accessories
Bulletin No.: 99-08-64-003
Date: April 1999

Subject: Disabling Automatic (Rolling) Door Lock Feature (Service
Procedure to Recalibrate Body Control Module).

Models: 1999 Chevy & GMC C/K Models (Silverado & Sierra)

Labor operation: J6355
Description: PROM - Reprogramming (On Vehicle)
Labor time: 0.3 hr

* The automatic (rolling) door lock feature may be turned off and
covered under warranty on a one-time only basis. The system can be
re-enabled (turned on) again at customer expense.
-------------------------------------------------

Also, I think you can install a BCM from a newer model and you can program them to work 4 different ways.

 

It's all in the owner's manual if it's a new body style.

 

Not for '99 only for '00 and up.