trailblazer hatch won’t lock w/ rke syst

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=128656
Printed Date: May 04, 2025 at 3:24 AM

Topic: trailblazer hatch won’t lock w/ rke syst

Posted By: racecar383
Subject: trailblazer hatch won’t lock w/ rke syst
Date Posted: September 28, 2011 at 8:07 AM

Searched and found a couple threads on this topic, but they were several years old and were closed... On my wife's 06 Trailblazer I installed a keless entry and used a DEI 457G interface. Everything works fine,all doors and hatch unlock, but when you lock the doors, the hatch won't lock. Do I need a diffeent interface? or is this one faulty? I assume it doesn't need programming, since it seems to be communicating with the vehicle? Thanks...

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racer

Replies:

Posted By: Mark Mizenko
Date Posted: September 28, 2011 at 2:29 PM

That was a problem with some 457G's. Try changing that to a GMDLBP, it's cheap and works well. And fixes that problem.

Posted By: racecar383
Date Posted: September 28, 2011 at 6:10 PM

I've ordered a DB-GMDLBP..... I will post results after changing it over...Thanks for the quick reply....

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racer

Posted By: racecar383
Date Posted: October 01, 2011 at 4:00 PM

I got the new interface installed, but now I have to press the unlock button on the transmitter 3 times to get the doors to unlock. It's like it needs a triple pulse to unlock the doors....Any suggestions?

Thanks....

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racer

Posted By: racecar383
Date Posted: October 02, 2011 at 8:46 PM

I figured out the problem.... I had to go into the GMDLBP's programming and set the to Driver's Door Priority to OFF.... It now unlocks with one touch of the UNLOCK button on the transmittter. . posted_image

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racer

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