What To Know
- Use a multimeter to test the electrical continuity of the wires connected to the tail light assembly.
- Yes, replacing a tail light bulb is a straightforward task that can be completed in a few minutes.
- No, it is not safe to drive with a faulty tail light as it impairs visibility and poses a safety hazard.
Is your 2017 GMC Yukon’s tail light casting a dim glow, flickering erratically, or simply refusing to illuminate? Don’t let darkness compromise your safety. This comprehensive guide will provide you with step-by-step instructions on how to fix your tail light, ensuring your Yukon shines brightly on the road.
Safety First
Before embarking on any electrical repair, disconnect the negative terminal of your battery. This crucial step prevents electrical shocks and potential damage to your vehicle’s electrical system.
Identifying the Problem
1. Inspect the Bulbs: Remove the tail light assembly and check the bulbs for any signs of damage or discoloration. Replace any burnt-out or damaged bulbs.
2. Examine the Socket: Ensure the bulb socket is clean and free of corrosion. Clean any debris or rust using a wire brush or electrical contact cleaner.
3. Test the Wiring: Use a multimeter to test the electrical continuity of the wires connected to the tail light assembly. Replace any damaged or frayed wires.
Replacing the Tail Light Assembly
1. Locate the Tail Light Assembly: The tail light assembly is typically held in place by screws or bolts. Identify and remove the fasteners.
2. Disconnect the Electrical Connector: Unplug the electrical connector that powers the tail light assembly.
3. Remove the Tail Light Assembly: Carefully pull the tail light assembly out of its housing.
4. Install the New Tail Light Assembly: Align the new tail light assembly and insert it into the housing. Secure it with the screws or bolts you removed earlier.
5. Reconnect the Electrical Connector: Plug in the electrical connector to power the tail light assembly.
Troubleshooting Additional Issues
1. Fuse Replacement: If replacing the bulb and checking the wiring doesn’t resolve the issue, check the fuse box for a blown fuse. Replace the blown fuse with a fuse of the same amperage.
2. Grounding Issues: Ensure the tail light assembly is properly grounded to the vehicle’s chassis. Clean any corrosion or rust from the grounding point using a wire brush or electrical contact cleaner.
3. Switch Malfunction: If all other fixes fail, consider replacing the tail light switch. Locate the switch in the dashboard and disconnect the electrical connector. Test the switch for continuity using a multimeter. Replace the switch if it’s faulty.
Key Points: Shining Brightly
By following these comprehensive steps, you can effectively fix your 2017 GMC Yukon‘s tail light, ensuring optimal visibility and safety on the road. Remember to always disconnect the battery before performing any electrical repairs and seek professional assistance if you encounter any difficulties.
Top Questions Asked
Q1: Why is my GMC Yukon‘s tail light not working?
A1: The most common reasons include burnt-out bulbs, damaged sockets, or faulty wiring.
Q2: Can I replace the tail light bulb myself?
A2: Yes, replacing a tail light bulb is a straightforward task that can be completed in a few minutes.
Q3: How do I know if the wiring is damaged?
A3: Use a multimeter to test the electrical continuity of the wires. Replace any damaged or frayed wires.
Q4: What is the cost of replacing a tail light assembly?
A4: The cost varies depending on the model and availability of the tail light assembly. Contact your local dealer for an estimate.
Q5: Is it safe to drive with a faulty tail light?
A5: No, it is not safe to drive with a faulty tail light as it impairs visibility and poses a safety hazard.