GM Service Manual Online
For 1990-2009 cars only

Exterior Lamp

Bulb Number

Back-Up Lamp

921

Front Parking Lamp

194 N/A

Front Sidemarker Lamp

168

Front Turn Signal Lamp

1156 N/A

Low/High-Beam Lamp

9007

Rear Sidemarker Lamp

W5W

Rear Turn Signal Lamp/Taillamp

1157

Stoplamp/Taillamp

1157

For replacement bulbs not listed here, contact your dealer.