Question about 2005 Chevrolet TrailBlazer

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Keyless entry no longer works, back hatch door doesn't lock now

My alarm started to intermittently work, till it now no longer works. Now that it doesn't work I have to lock my 05 chevy trailblazer manually, but now the automatic locks do not lock the back hatch, the alarm shows that it is setting on the dash when I lock and shut the doors. But the back door never locks.
Also my fuel gauge also does not work, after filled up 3 months ago my fuel gauge starts at empty then as I burn off fuel it goes to the F. Now it bounces all over the place.
Also my lights blink intermittently when driving sometimes, this has happened since I bought it 3 years ago and is only getting worse.
Also the line to my rear wiper shoots water all over the place, I have only used it a handful of times.
This is the worst vehicle ever...I have had to replace my stereo, waterpump and a pulley, belts, body seal on left hand side of car, 3 GM fuel caps that wouldn't seal properly because of poor design, the whole ingnition system and electical with the ignition system because it fried in the middle of driving. All this in 3 years of ownership and putting 26K miles on it!!

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 206 Answers

SOURCE: The auto door lock feature dose not work.

There is 3 relays in one of the fuse panels that are labeled doorlocks one of them is probably bad. Push the door lock button and find the one that is clicking this is the one that is back. This should fix your problem

Posted on Mar 01, 2009

  • 59 Answers

SOURCE: The Rear Wipers on my 2001 1500 Chevy Suburban Stopped working

Unplug the connector at the rear wiper motor, turn the switch on and probe the wires with a test lamp, if you have power back there you more than likely have a bad motor. If there is no power start checking fuses they are all labeled easily on the back side of the fuseblock covers both on the dash and underhood. Good Luck!!!

Posted on Mar 15, 2009

  • 340 Answers

SOURCE: Nothing works,door locks, lights, no noise of any

security system failure will shut everything down
(IT THINKS IT IS BEENING STOLEN) an locked it self out

Posted on Mar 03, 2010

  • 132 Answers

SOURCE: I bought a Chevy Trailblazer, used, had keyless

You need to find the black push button called the valet button. That is the overide. Get in the car turn the key to IGN as the alarm is going off and then you have either 5 or 10 seconds to push that button once and then 2-5 seconds later the alarm is shut off. To put the car into valet mode which means no alarm at all you put the key to IGN push that button once then pull key out at which point the blue light should turn solid blue.

Or option two is you open a door and hit the lock, then unlock, then lock button again on the remote and the blue led will be solid which means no crazy alarm.

Posted on Apr 04, 2010

  • 15 Answers

SOURCE: good afternoon....what would cause my 2008 Chevy

It could be the power lock motor. You could have a short or bad wiring harness. Might just be a fuse that connects to both. But since you said it's only the driver side. When the power lock motor is bad it can trigger your alarm because they're wired together.

Hope that helps. Good luck.

Posted on Apr 06, 2010

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