2005 Pontiac Aztek Owner's Manual - Page 332

A. Stop/Taillamps B. Back-up Lamps 7. Reinstall by aligning the pins on the back of the lamp with the sockets on the outboard side of the lamp opening. 8. Push forward until the pins snap into the socket. 9. Reinstall the screws removed in Step 2. Replacement Bulbs Exterior Lamp Back-up Lamps (Bottom) Front Turn Signal/ Parking/ Sidemarker Lamps Headlamps High-beam Low-beam Stop/Taillamps (Top) 9005 9006 3057K Bulb Number 3155K 3057 4. Unscrew the bulb socket from the lamp assembly by pressing the tab while turning the bulb socket counterclockwise. 5. Replace the bulb by pulling the old one out and gently pushing the new one into the bulb socket. 6. Line up the tabs on the bulb socket with the gaps in the socket holes and screw the bulb socket back into the lamp housing. You will hear a click. For replacement bulbs not listed here, contact your dealer. 5-50