How do you remove door panel on 2007 chevy trailblazer

simply because fixya site doesn't do repairs
take your complaint to the dealer or GM head office

Check the fuse from the manual and replace else, the ground wire on the right door panel has got open / cut.

It's easy, you'll want to get Novita LM486 flasher, that way you can run LED's with no problems if you ever choose to do so. It's right under the steer wheel. The panel your knee hits, remove it, it's laying on it. About 4 inches long, about an inch wide. It's a big one. Novita manufacturers all of GM's flashers, the LM486 is LED compatible, will work with or without LED's. Orielly's has them if you need one quick.

It is possible that the connections got loose or was disconnected. Inspect also the fuses for the nonworking items. If none of the fuses are blown you will have to inspect the controls on the driver side. You would need screw drivers including a flat one to pry open the panel. Cover the flathead scew driver with a rag to avoid scratches.

Below is a link for an 07 trailblazer. The 06 and the 07 share the same wiring system.


http://www.wiringdiagrams21.com/2009/05/22/2007-chevy-trailblazer-l6-engine-compartment-fuse-block-relay

remove inner door panel to access window, lift and brace with wood stick.

open door pull ruber boot back on door side unplug wire connections snap lock release on con pull pins pull door

There is a small triangular door panel piece near the mirror. Remove it and remove the 2 or 3 bolts holding the mirror. Remove inside door panel. Unplug/replug electrical connection.Reinstall in reverse order.
Should be easy even if you're not a dexter with tools.

This solution applies to models:
2002-2007 Chevrolet Trailblazer, Trailblazer EXT and Trailblazer SS
2004-2007 Buick Rainier
2002-2007 GMC Envoy, Envoy XL, and Envoy Denali
2002-2004 Oldsmobile Bravada
2005-2007 Saab 9-7x

Condition/Concern:
Rear liftgate glass will not lock when using the key fob or door switch unless the lock button is pressed a second time. All other doors will lock normally. This could be the result of the liftgate glass lock rod not adjusted correctly. This lock rod travels from the liftgate lock actuator to the glass release push-button cylinder.

Recommendation/Instructions:
Remove the inside rear liftgate trim panel. Disconnect the threaded lock rod clip at the end of the push-button glass release and rotate this clip 1 complete turn at a time making the lock rod longer. This will be the only threaded lock rod visible when the trim panel is removed and the liftgate is raised.
Note: For the rear glass to release, the rear liftgate latch must be in the closed position. For test purposes only, this latch can be made closed to make this lock rod adjustment.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.

the linkage behind the handle either the retaining clip broke or popped off need to remove the door panel to check and fix

If the service light is on in your TrailBlazer, open the door, turn the key to ignition position and push the accelerator pedal 5 times, the service light will flash. flash your high beams and you're done.