* Replacement tail light assembly (check your owner's manual for the correct part number)
* Socket wrench set
* Phillips head screwdriver
* Flashlight
* Safety glasses
Instructions:
1. Park your Trailblazer in a well-lit area and turn off the engine.
2. Engage the parking brake and put on your safety glasses.
3. Open the rear hatch or trunk of your Trailblazer.
4. Locate the tail light assembly that needs to be replaced.
5. Use the socket wrench to remove the bolts that hold the tail light assembly in place.
6. Disconnect the electrical connector from the back of the tail light assembly.
7. Remove the tail light assembly from the vehicle.
8. Inspect the new tail light assembly and make sure that it is undamaged.
9. Connect the electrical connector to the new tail light assembly.
10. Insert the new tail light assembly into the vehicle and secure it with the bolts you removed earlier.
11. Test the new tail light assembly to make sure that it is working properly.
Tips:
* If the bolts holding the tail light assembly are rusty or damaged, you may need to replace them with new bolts.
* Be careful not to drop the bolts or electrical connector into the vehicle.
* If you are uncomfortable working on electrical components, you can have a qualified mechanic replace the tail light assembly for you.