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'99 LS Auto Door Lock at 15 mph...

Shaners

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Dex857 Enthusiast

Dex857

Posted
Posted

I have a '99 LS Silverado.. That does NOT auto lock the doors at 15 mph.. should it ?? Is it an option that can be added ?? If so ... HOW???

Thanks...

Shaners Senior Enthusiast

Shaners

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Dex, I believe it should lock if you want it to.  It should tell you in the manual how to enable and disable the autolock feature.  If it is engaged you have to either push the button on the arm rest or pull the key about 1/2 way out to get it to unlock...

Dex857 Enthusiast

Dex857

Posted
Posted

All he manual says is that "the door will lock at 15mph"  does not say how to enable or disable....

The truck is used... maybe the previous disconnected something....

Anyone got any ideas ???

Shaners Senior Enthusiast

Shaners

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This is out of my 2001 manual and I think it is the same for '00.  Try it on your '99

1) With ignition off: pull back on turn signal lever (toward you) and hold it for the next step.

2)Turn key to run then off twice then with the key in the off position release the turn signal lever (you should then hear the lock mechanism lock and unlock.

3)Press the lock side of the door lock switch once and then the unlock side twice.  (you have 30 seconds)

4) to exit program mode turn the ignition to "run"

This will lock the doors at 15 mph and unlock them when the key is removed from the ignition.  It works on'00 and '01 trucks, maybe it will work on yours...

Good luck

DallasZ71 Enthusiast

DallasZ71

Posted
Posted

My 99 locked at 15mph, you couldn't program it yourself the dealer could disable it or enable it for you.  Not sure if it was 2000 or 2001 when the locks changed to being able to be programmed by the owner.

warhig Enthusiast

warhig

Posted
Posted

I had a 99 Sierra and the dealer had to do the bypass in the computer. You could have dealer re-program the computer the way you want it. In 2000, the locks became user programable.

Dex857 Enthusiast

Dex857

Posted
Posted

For all those who answered.. thanks..

The answer to the question is this..

on the '99 the dealer has to reprogram the whole computer.. I took it to a dealer and they had to reload the entire program for the body control module.. not just a quick thing.. it took him about 25 minutes to do it... the '00-'01 have the user programable ... he also told me on the '00-'01 there are a ton of UNDOCUMNETED things u can disabale enable reconfigure using the dome override.. He would go pass that though..

 

Again.. Thanks for the help...

Shaners Senior Enthusiast

Shaners

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I know that pushing the dome overide button 4 times you can disable the DRL's, but I wonder what all the other "undocumented" things are...

Dex857 Enthusiast

Dex857

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Posted

I was querying him about just that and he would not give any information..

I would think they would be in the service manuals somewhere...

But who knows....

Badger Enthusiast

Badger

Posted
Posted

My 01 auto locks at 20 mph.  Remove the key from the ignition unlocks the doors.  MY dealer/salesman programed it for me before taking delivery.

Shaners Senior Enthusiast

Shaners

Posted
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Posted

Quote from Stepside Z, posted on Sep. 17 2001,15:57

Shanners,

Did the DRLs come on again after you shut the truck off then restarted it?

 

Yes the DRL's come back on when you shut down and restart...

CapnDean Enthusiast

CapnDean

Posted
Posted

Dex;

 

 You can have mine!  They are user programmable and I turned em off....didn't like having to pull the key out to get out of the truck!

 

(Either that or hitting the unlock button)

 

CapnDean

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