Introduction
Upgrading your Tesla Model Y with Juniper rear diffuser tail lights can dramatically enhance its appearance and visibility. This comprehensive guide will walk you through the complete installation process step by step.
What You'll Need
- Model Y Juniper rear diffuser tail light kit
- Phillips head screwdriver
- Plastic trim removal tools
- Microfiber cloth
- Electrical tape (optional)
- Gloves to protect the lights from fingerprints
Safety Precautions
Before beginning the installation:
- Park your vehicle on a level surface
- Turn off the vehicle completely
- Disconnect the 12V battery (recommended for safety)
- Allow lights to cool if recently used
Step-by-Step Installation Guide
Step 1: Remove the cover from the trailer hitch.
Step 2: This step is just to route the cigarette lighter wire through here.
Step 3: Remove the waterproof seal strip.
Step 4: This step is to (the yellow wire in the image is not the original vehicle wire—any wire will do) pull the navigation light wire back up.
Step 5: Tie a knot. The yellow one is called the auxiliary rope.
Step 6: Thread the line through.
Step 7: Cigarette lighter wiring (must be disassembled)
Step 8: Remember to route the cigarette lighter wiring out to this location first.
Step 9: The wires for the cigarette lighter and the diffuser lamp (for connection) only need to be connected to the red and green wires; the yellow wire is not required.
Step 10: Reinstall the waterproof strip
Step 11: Plug in the cigarette lighter and check if the light stays on.
Step 12: Replace the trailer hitch cover - Begin installing the rear diffuser
For video installation, refer to this link：https://drive.google.com/drive/folders/1w698olshVr7-nHkVSfhWnQCEnUsqrccK?usp=sharing
Before fully installing, reconnect the 12V battery and test all light functions:
- Running lights
- Brake lights
- Turn signals
- Reverse lights
Troubleshooting Tips
- Lights not working: Check wiring harness connection and ensure it's fully seated
- Flickering lights: Verify all connections are clean and secure
- Poor fitment: Ensure mounting bolts are properly aligned before tightening
- Error messages: Some vehicles may require coding; consult a professional if needed
Maintenance Tips
To keep your new Juniper tail lights looking great:
- Clean regularly with automotive glass cleaner
- Avoid harsh chemicals or abrasive materials
- Inspect seals periodically for moisture intrusion
- Check mounting bolts annually for tightness
Conclusion
Installing Model Y Juniper rear diffuser tail lights is a straightforward upgrade that can be completed in about 30-45 minutes per side. The enhanced styling and improved visibility make this a worthwhile modification for any Model Y owner. If you're not comfortable with the installation process, always consult a professional automotive technician.