The daytime running lamp system on a Chevrolet Suburban does not use separate daytime running lamps like other vehicles. Instead, the daytime running lamps are simply the Suburban's high beam headlights operating at a reduced setting. Thus, to change the daytime running lights on a Suburban, you must change the vehicle's high beam bulbs. This is a simple procedure that requires only a 9005-type replacement bulb, a clean cloth and approximately 10 minutes of your time.
Turn off the Suburban's engine and open the hood.
Twist the two retaining pins on the headlight assembly inwards. Remove the pins.
Remove the headlight assembly from the vehicle by lifting it out. Disconnect the plug at the rear of the assembly by squeezing the plastic tabs and pulling it off.
Remove the smaller bulb socket by rotating it counterclockwise and pulling it out of the vehicle. This socket contains the high beam bulb.
Pull the high beam bulb out of the socket and use a clean cloth to install the new bulb. Place the bulb back into the socket and the socket back into the assembly.
Place the assembly back into the vehicle and reconnect the plug to the rear of the vehicle. Reattach the two retaining pins and close the hood.
