How to Replace the Stop Lamp on a Volvo XC90by Daniel Valladares
Driving your Volvo XC90 with faulty stop lamps is very dangerous. Not only can it lead to an accident, but many states have laws against driving with faulty car lights, and you may receive a citation from the local authorities for doing so. The stop lamp on a Volvo XC90 is contained within the tail lamp assembly. The replacement procedure requires a P21W-type bulb and a socket wrench.
Turn off the XC90's engine and put on a pair of gloves. Open the tailgate and locate the corner panel behind the tail lamp assembly.
Open the cover of the corner panel by pulling the tab outward. Loosen the four bolts inside the panel with a socket wrench.
Pull the tail light assembly out of the vehicle. Disconnect the wiring by pulling on the wire. Twist the topmost socket and remove it from the assembly. This is the stop lamp socket. Remove the bulb and replace it with a new bulb.
Position the socket back into the assembly and twist it clockwise to secure it in place. Reconnect the wire to the rear of the tail lamp assembly and place the assembly back into the vehicle.
Reinstall the four bolts and close the corner panel. Close the tailgate.