How do I change my license plate light?
You replace the license plate light by removing the old bulb or LED module and installing a new one, then testing the light to confirm it works.
In practice, the process varies by vehicle. Some cars use a replaceable bulb (commonly W5W/T10 194 or 168) in a small housing accessible from behind the plate. Others use sealed LED assemblies that may require swapping the entire unit. Access usually involves removing screws or twisting the lens, handling components with care, and reconnecting wiring if needed. This guide covers both common setups and safety tips.
Identify your light type
Most license plate lights fall into two categories: replaceable bulbs and sealed LED assemblies. To determine which you have, inspect the unit: a visible bulb that can be pulled out indicates a bulb-based housing, while a flat, sealed LED module suggests an LED assembly. Your owner’s manual or a quick online lookup by your vehicle’s year, make, and model will confirm the correct part numbers and bulb size.
Bulb-based license plate lights
If your car uses a standard replaceable bulb, follow these steps to swap it in a few minutes.
- Turn off the ignition and ensure the lights are off. Open the trunk or hatch to access the license plate area.
- Remove the lens or access panel holding the bulb by unscrewing screws or gently prying with a trim tool.
- Carefully remove the old bulb from the socket, avoiding contact with bare skin, and inspect the socket for corrosion.
- Insert a new bulb of the same type (check the bulb base and size, commonly W5W/T10 194 or 168). Don’t twist or force the bulb; it should seat firmly.
- Reassemble the housing, restore power, and test the light by turning on the headlights.
Most cars use a replaceable low-current bulb size, so check the existing bulb or the owner’s manual for exact specifications. If the bulb blows again soon, check for wiring or seal issues in the housing.
LED license plate light assemblies
Many newer vehicles use sealed LED modules; when the LED fails, replace the entire unit rather than an individual LED. If your model allows bulb-level LED swaps, the steps are similar to bulbs but with care to avoid damaging the LED housing and wiring.
- Identify the location of the LED assembly and disconnect the vehicle battery if you’re uncomfortable working near wiring.
- Remove the fasteners or clips holding the unit in place, then gently unplug the electrical connector.
- Remove the old LED assembly and replace it with the exact-match unit specified for your vehicle, ensuring correct polarity and fit.
- Reconnect the wiring, reattach the light housing, and test by turning on the exterior lights.
Note that many LED license plate lights are non-serviceable sealed units. Always use the correct part number and consider CAN-bus compatibility to avoid fault codes in modern vehicles.
When to seek professional help
If you encounter difficulty accessing the light, damage to the mounting area, corrosion on the socket, or persistent electrical issues, a professional mechanic can help avoid further damage and ensure compliance with local lighting regulations.
Summary
Changing your license plate light is a common maintenance task that can usually be completed in minutes with the right parts and a little care. Determine whether your vehicle uses a replaceable bulb or an LED assembly, gather the proper replacement, follow the steps for your setup, and test the light afterward. If in doubt or if you run into complications, don’t hesitate to seek professional help.
