GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2003 🢒 Envoy - 2WD 🢒 Service and Appearance Care 🢒 Bulb Replacement 🢒 Replacement Bulbs

Exterior Lamp

Bulb Number

Back-up Lamps

3157

Front Sidemarker Lamps

194

Front Turn Signal Lamps

3457

Halogen Headlamps

  • High-Beam

9005 HB3

  • Low-Beam

9006 HB4

Rear Turn Signal, Stoplamp and Taillamp

3057

For replacement bulbs not listed here, contact your dealer.