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2003 trailblazer problems alarm going off by itself

Alarm going off by itself

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While driving my 2005 trailblazer my alarm is going off. When I unlock my doors alarms sounds when I put key in ignition and turn over alarm never goes off


Replace the door latch inside the door. But look up and see if you can just get the sensor for security. They have finally started to sell them separate.

Apr 18, 2015 | 2005 Chevrolet TrailBlazer

1 Answer

2003 trailblazer wont go in reverse .


Low on Transmission fluid or internal transmission problem.

Jul 24, 2014 | 2003 Chevrolet TrailBlazer

1 Answer

Where are the speed sensors on a 2004 chevy trailblazer?


Assuming that you're talking about the front wheel speed sensors...
Your best bet is to replace both from wheel hub/bearing assemblies.

They'll cost about $100-$150 each.
When the wheel speed sensors are setting ABS codes it usually means that the bearings are bad.
When you replace the whole hub assembly, a new sensor is already installed in that hub. If it just the sensor (unlikely that just the front sensors alone are going bad) the sensor itself is usually 3/4 of the price of a new hub anyway.

Apr 24, 2012 | 2004 Chevrolet TrailBlazer

2 Answers

I purchased 03 trailblazer w an alarm and wasn't


chevy dealership should be able to order you one

Nov 03, 2011 | 2003 Chevrolet TrailBlazer

1 Answer

I HAVE A 2003 TRAILBLAZER THE SPEED CONTROL GAUGE IS STUCK ALL THE WAY UP AT 100 MPH OR SOME TIMES GO UP AND DOWN BUT NEVER BACK TO 0 IF CAN HELP ME THANKS.


speed sensor in the tranny is malfuntioning is the only thing I can say. Unless its your instrument cluster itself. Good Luck.

Jun 15, 2010 | 2003 Chevrolet Trailblazer Ext

1 Answer

Car alarm


you need a satelite

May 31, 2009 | 2004 Chevrolet TrailBlazer

2 Answers

Back door wont open after can went dead and had to get a boost


try checking the fuses for the swithes themselves, usually under the dash or beside the doors

Dec 14, 2008 | 2004 Chevrolet TrailBlazer

1 Answer

2003 dodge caravan alarm


probably a door ajar switch going out they are built into the loor latches. really need a scanner to see wich one acting up. try unlocking the lift gate or passenger door with the key and see if it will disarm the system.

Jun 03, 2008 | 2003 Dodge Caravan

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