Tools You'll Likely Need:
* Phillips head screwdriver (possibly a flathead as well)
* Socket wrench (might need various sizes)
* Possibly a trim tool or plastic pry tool (to avoid scratching the plastic)
* New tail light assembly
General Steps:
1. Safety First: Park your Blazer on a level surface, engage the parking brake, and turn off the engine. Consider using jack stands for extra safety if you're working low to the ground.
2. Access the Tail Light: You'll need to access the rear of the taillight. This usually involves opening the hatch or rear door.
3. Remove the Interior Trim: There are usually screws or clips holding an interior trim panel in place behind the taillight. Carefully remove these, using a trim tool to avoid damage. This panel provides access to the taillight's mounting hardware.
4. Disconnect Electrical Connectors: Locate the electrical connector(s) attached to the back of the taillight assembly. There's usually a locking mechanism – gently push or squeeze the locking tab to release the connector. Carefully disconnect the connector(s). Some models may have multiple connectors for different functions (brake lights, turn signals, reverse lights, etc.).
5. Remove the Tail Light Assembly: There are usually screws or bolts securing the taillight assembly to the Blazer's body. These may be visible after removing the trim panel. Carefully unscrew or remove these fasteners. You might need a socket wrench. The assembly might also clip in – gently pull it away once the fasteners are removed.
6. Install the New Tail Light Assembly: Carefully align the new tail light assembly with the mounting points on the Blazer. Secure it using the screws or bolts you removed earlier.
7. Reconnect Electrical Connectors: Plug the electrical connectors back into the new tail light assembly, ensuring they are securely connected.
8. Reinstall Interior Trim: Replace the interior trim panel and secure it with the screws or clips.
9. Test the Lights: Turn on your Blazer's ignition and test all the functions of the new tail light assembly (brake lights, turn signals, reverse lights, running lights).
Important Considerations:
* Year-Specific Differences: The exact steps and locations of fasteners vary significantly between model years. Consult your repair manual for your specific Blazer model year.
* Bulbs: If you're only replacing a bulb and not the entire assembly, you might not need to remove the entire tail light. Check your manual for instructions on accessing and replacing individual bulbs.
* YouTube Videos: Searching YouTube for "[Your Blazer Year] tail light replacement" often yields helpful videos demonstrating the process visually.
Disclaimer: This is general guidance. Improper repair can lead to electrical shorts, malfunctioning lights, or even injury. If you are not comfortable performing this repair yourself, it's best to take your Blazer to a qualified mechanic.
