💡Headlight Bulb Size
GMC Envoy Headlight Bulb Size
Find the correct headlight bulb size for your GMC Envoy. Covers low beam, high beam, fog lights, and turn signals for all years.
Quick Answer
The GMC Envoy headlight bulb size depends on the model year and trim. Common sizes include H11 (low beam), 9005/HB3 (high beam), and H16 (fog lights) — see the full breakdown below.
2004-2009
2004-2009Low Beam9006/HB4 or H4
High Beam9005/HB3 or H4
Fog Lights9006 or 880/881 (if equipped)
Turn Signal (Front)3157 amber
Headlight TypeHalogen reflector
Notes
- →Never touch halogen bulbs with bare fingers — skin oil causes hot spots and premature failure
- →Replace bulbs in pairs — if one side burned out, the other is likely near end of life
1998-2003
1998-2003Low Beam9006/HB4 or H4
High Beam9005/HB3 or H4
Fog Lights9006 or 880/881 (if equipped)
Turn Signal (Front)3157 amber
Headlight TypeHalogen reflector
Notes
- →Never touch halogen bulbs with bare fingers — skin oil causes hot spots and premature failure
- →Replace bulbs in pairs — if one side burned out, the other is likely near end of life
Frequently Asked Questions
- What size headlight bulb does a GMC Envoy use?
- The GMC Envoy headlight bulb size varies by year. Newer models often use factory LED units, while older models use H11, H7, or 9006 halogen bulbs. Check the year-specific specs below for your exact fitment.
- Can I put LED bulbs in my GMC Envoy?
- If your GMC Envoy has halogen headlights, you can install LED replacement bulbs. Look for bulbs with a proper beam pattern (projector-compatible) to avoid blinding other drivers. Some models may need anti-flicker adapters.
- How do I replace the headlight bulb on a GMC Envoy?
- On most GMC Envoy models, you can access the headlight bulb from behind the headlight assembly in the engine bay. Twist the bulb socket counterclockwise, pull out the old bulb, insert the new one (don't touch the glass), and twist back in.
- Why does my GMC Envoy headlight keep burning out?
- Frequent bulb burnout on the GMC Envoy is usually caused by a loose connection, moisture in the housing, touching the bulb glass during installation, or a voltage regulator issue. Check the connector and housing seal.
GMC Envoy Repair Guides
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