2003 Chevrolet Avalanche Owner's Manual - Page 389

2. Remove the two rear lamp assembly screws near the tailgate latch and pull out the lamp assembly. 5. Press a new bulb into the socket and turn the socket clockwise into the taillamp housing until it clicks. 6. Reinstall the rear lamp assembly and tighten the screws. 7. Close the tailgate. Replacement Bulbs 3. Press the release tab and turn the bulb socket counterclockwise to remove it from the taillamp housing. dealer. 1 Exterior Lamp Bulb Number Low-Beam Headlamps High-Beam Headlamps Daytime Running Lamps (DRL) 4157K 194 Side Marker Lamp and Turn Lamp 3157A or 3457NA Front Rear Marker Lamp, Taillamp and 3157 Stop Lamp Rear Turn Lamp 3157 Back-up Lamp 3157 For replacement bulbs not listed here, please contact your I 4. Pull the old bulb straight out from the socket. 5-56