For both generations, you'll generally need these:
* A replacement bulb: Make sure you get the correct type and wattage. Consult your owner's manual for the specific bulb type. It's usually a small wedge bulb (like a 194 or 168, but check your manual!).
* A small flat-head screwdriver (possibly a Phillips head as well depending on the year): Might be needed to access the bulb housing.
* A glove or rag: To keep your hands clean.
General Steps (Adapt to your specific year):
1. Locate the license plate light assembly: This is usually on the rear of the vehicle, above the license plate.
2. Access the bulb housing: This is where the process differs significantly depending on the year. Some models have a small access panel that can be popped open with your fingers or a small screwdriver. Others might require removing screws or other parts of the trim panel near the license plate. Consult your owner's manual for the correct procedure for your specific SRX model year. Pictures or diagrams in the manual will be invaluable.
3. Remove the old bulb: Gently twist the old bulb counter-clockwise to remove it from its socket. Be careful not to break it.
4. Insert the new bulb: Insert the new bulb and twist it clockwise to secure it in place.
5. Reassemble everything: Put the access panel or trim pieces back on, ensuring everything is secure.
6. Test the lights: Turn on your car's lights to make sure the new bulb is working correctly.
Crucial Note: Without knowing the specific year of your Cadillac SRX, I cannot provide more detailed instructions. Your owner's manual is the most reliable source of information for this procedure. It will contain diagrams and step-by-step instructions specific to your vehicle. You can often find a digital version of the manual online by searching for "[Your Cadillac SRX Year] Owner's Manual" on Google. YouTube videos searching for "[Your Cadillac SRX Year] License Plate Light Replacement" can also be helpful.
