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Reset anti theft system on 2005 buick lacrosse

Posted by jesse sauceda on


5 Related Answers


  • 1 Answer

SOURCE: how do you add power steering fluid. 2005 buick lacrosse

It is very hard to see, its back and underneath the altenator, use a flashlight to find it buried under wires and tubes.

Posted on May 03, 2009


Dennis Saunders

  • 74 Answers

SOURCE: remote for buick Lacross doesn't work, battery new. Can't figure how to reset it.

have to be reset by dealer usually 20 to 35 dollars to do so

Posted on May 16, 2009


Paul McGrath

  • 776 Answers

SOURCE: Hello accent 2004 with anti theft system battery flat anti theft

Have you verified this system is running the battery down? The system you describe is called the Remote Keyless Entry System (Electronic Time/Alarm & Control System - ETACS Module). It cannot be 'disconnected' without disabling other systems (intermittent wipers, Chime bell, Door Warning, Dimming Off Room Lamp, Seat Belt indicator, remote power door lock/unlock system, etc.)


Posted on Jun 29, 2009


  • 176 Answers

SOURCE: anti theft code P1629

try leaving the key on for 5 to 10 minutes
for the BCM (body control module) to relearn

Posted on Jun 30, 2009

Robert Bivins

  • 192 Answers

SOURCE: lowbeams headlamp won,t work on 2005 buick

Start simple. Investigate your fuses, since it is unlikely, but not unheard of, for both low beams to fail simultaneously.

Do you know where your fuses are?

Posted on Aug 17, 2009

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Sallie, may have to have security reset at the dealer if you can not do it yourself. Check the attached links,instruction and guides, Good luck
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all lights on dash will light on start up but yours means that you have 2 programmed keys for the vehicle. it is part of the anti theft system. I hope you have both original keys

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2 Answers

2005 rendezvous. Changed serpenntine belt and replaced leaking front seal when took it down off the jacks it will not start. Turns over but acts like fuel has been shut off. Is this an anti theft or fuel...

Sounds like maybe you knocked the Crank Sensor loose, or possibly the injector plug harness up top near the alternator. Check all of your wiring really good in the vacinity that you were working in and around. If your anti theft light isnt flashing you in the face with the key on and engine off it isnt a fuel or theft issue. The anti theft system disables the fuel to the injectors, if you raised the car too high it can trigger the anti theft and it must be reset, but unlikely. Check all of your connections.

Jul 31, 2011 | Buick Rendezvous Cars & Trucks

1 Answer

I need to reset the anti theft system on my 2005 Buick La Crosee

Get in car turn key on, wait 10mims or till theft light stops flashing, turn key off, start engine.

Jul 05, 2010 | Cars & Trucks

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there's no reset for that. Vehicle might need a new oil light sensor

Nov 28, 2009 | 2005 Buick LaCrosse

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