1. Diagnose the Problem:
* Check the fuse: Before anything else, check your vehicle's fuse box for a blown fuse related to the rear window. Your owner's manual will show you the fuse box location and diagram.
* Check the wiring: Inspect the wiring harness leading to the rear window latch button for any visible damage (broken wires, loose connections, corrosion). Carefully disconnect and reconnect the connectors to ensure good contact. If you find damage, you'll likely need to repair or replace the wiring.
* Test the motor directly (advanced): If the wiring seems okay, you might need to try bypassing the switch entirely. This requires more mechanical knowledge and involves accessing the rear window motor and applying 12V power directly (use extreme caution, incorrect wiring can damage the motor or cause short circuits). This step helps determine if the problem is the button or the motor itself. If the motor works when powered directly, the problem is definitely the switch.
2. Repairing the Button (Most Likely Solution):
This is often the culprit, and involves these steps:
* Removal: You'll need to remove the interior trim panel around the rear window switch. This usually involves prying gently with plastic trim removal tools to avoid scratching the panel. Consult a repair manual or online videos for your specific Blazer model to find the proper procedure.
* Disassembly: Once the panel is removed, you'll likely see the latch button. Carefully disassemble the button. This often involves removing small screws or clips. Take photos as you go to help with reassembly.
* Inspection: Examine the internal mechanism. Common failures include:
* Broken plastic parts: Look for broken tabs, levers, or springs.
* Worn contacts: The electrical contacts might be worn or dirty, preventing a proper connection.
* Repair or Replacement: If you find a broken part, you may be able to repair it with epoxy or super glue (use a very small amount). However, it's often easier and more reliable to replace the entire button assembly. You might find replacement parts online (eBay, Amazon, auto parts stores) or at a junkyard.
* Reassembly: Once the repair or replacement is done, carefully reassemble the button and the interior trim panel.
3. Seeking Professional Help:
If you're not comfortable with automotive repair, taking your Blazer to a qualified mechanic or an auto electrician is the safest option. They have the tools, experience, and expertise to diagnose and fix the problem efficiently.
Important Notes:
* Repair manuals: A repair manual specific to your 2001 Chevy Blazer is invaluable. It will provide detailed instructions and diagrams for removing panels and accessing the rear window latch mechanism.
* Safety: Always disconnect the negative battery terminal before working on any electrical components.
* Patience: Disassembling and reassembling small parts can be time-consuming and require patience.
By following these steps, you should be able to either repair the rear window latch button yourself or have a better understanding of the problem for when you take it to a professional. Remember to prioritize safety and take your time.
