GM Service Manual Online
For 1990-2009 cars only

Exterior Lamp

Bulb Number

Back-Up Lamps

921

Center High-Mounted Stoplamp (CHMSL)

912

Front Parking/Turn Signal Lamps

3157 KX

High/Low-Beam Headlamps

9007

Sidemarker

194

Taillamp, Turn Signal and Stoplamp

3057 KX

For replacement bulbs not listed here, contact your dealer.