Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2006 GMC Yukon DenaliFACTORY OEM SERVICE PROCEDURE
Lighting Systems Component Views
| Callout | Component Name |
|---|---|
| 1 | Hood |
| 2 | Hood Reinforcement |
| 3 | Underhood Lamp Assembly Electrical Connector |
| 4 | Underhood Lamp Assembly |
| 4 | Underhood Lamp Assembly |
| Callout | Component Name |
|---|---|
| 1 | Bumper |
| 2 | Fog Lamp - LF |
| 3 | Air Deflector |
| 4 | Fog Lamp - LF Connector |
| 5 | Fog Lamp Harness |
| 6 | Fog Lamp Bracket (Part of Fog Lamp) |
| Callout | Component Name |
|---|---|
| 1 | Upper Radiator Support - Tie Bar |
| 2 | Headlamp-Low Beam - Right |
| 3 | Snowplow - Option - Connector C127 |
| 4 | Park/Turn Signal Lamp - RF |
| 5 | Park/Turn Signal Socket - RF |
| 6 | Park/Turn Signal Lens - RF |
| 7 | Marker Lamp Socket - RH |
| 8 | Daytime Running Lamp (DRL) Socket - RH |
| 9 | DRL Lamp - RH |
| 10 | DRL Lens - RH |
| 11 | Headlamp Assembly - Right |
| 12 | Headlamp-High Beam - Right |
| Callout | Component Name |
|---|---|
| 1 | Upper Radiator Support - Tie Bar |
| 2 | Headlamp Assembly-LF |
| 3 | Headlamp-High Beam Connector-LF |
| 4 | Daytime Running Lamp (DRL)-LF |
| 5 | DRL Socket-LF |
| 6 | Windshield Washer Reservoir |
| 7 | Park/Turn Signal Lamp Socket-LF |
| 8 | Marker Socket-LF |
| 9 | Marker Lamp-LF |
| 10 | Park/Turn Signal Lamp-LF |
| 11 | Snowplow - Option - Connector C125 |
| 12 | Headlamp-Low Beam Connector-LF |
| 13 | Marker Lens-LF |
| Callout | Component Name |
|---|---|
| 1 | Headlamp Assembly |
| 2 | Fender |
| 3 | Headlamp Support Housing |
| 4 | Headlamp Assembly Connector |
| 5 | HID Headlamp Ballast |
| 6 | Radiator Upper Air Baffle |
| Callout | Component Name |
|---|---|
| 1 | Roof Marker Lamp and Harness - Right |
| 2 | Roof Marker Lamp and Harness - Left |
| 3 | Clearance Lamps and Harness |
| Callout | Component Name |
|---|---|
| 1 | Instrument Panel Bracket |
| 2 | Sunload Sensor Harness |
| 3 | Sunload Sensor Connector |
| 4 | Sunload Sensor Assembly |
| 5 | Instrument Panel |
| Callout | Component Name |
|---|---|
| 1 | Hazard Button |
| 2 | High Beams/Cruise/Wiper/Washer |
| 3 | Cruise Control Switches |
| 4 | Tilt Steering Actuator |
| 5 | Inflatable Restraint Harness |
| 6 | C201 Inline Connector |
| Callout | Component Name |
|---|---|
| 1 | Automatic Transfer Case (ATC) Electrical Connector |
| 2 | Automatic Transfer Case (ATC) Electrical Connector |
| 3 | Automatic Transfer Case (ATC) Select Switch |
| 4 | Cargo/Fog Lamp Switch |
| 5 | Headlamp and Panel Dimmer Switch |
| 6 | Instrument Panel |
| 7 | Headlamp and Panel Dimmer Switch Electrical Connector |
| 8 | Cargo/Fog Lamp Switch Electrical Connector |
| Callout | Component Name |
|---|---|
| 1 | Fog Lamp Switch |
| 2 | Roof Beacon Switch |
| 2 | Roof Beacon Switch |
| 3 | Accessory Switch Housing |
| 3 | Accessory Switch Housing |
| 4 | Instrument Panel |
| Callout | Component Name |
|---|---|
| 1 | Door Courtesy Lamp Electrical Connector |
| 2 | Door Courtesy Lamp |
| 3 | Left Door |
| Callout | Component Name |
|---|---|
| 1 | Headliner |
| 2 | Overhead Console |
| 3 | Overhead Console Electrical Connector |
| 4 | Headliner Harness Electrical Connector |
| Callout | Component Name |
|---|---|
| 1 | Cargo Lamp Harness |
| 2 | Cargo Lamp Harness Connector |
| 3 | Cargo Box/Stowage Box |
| 4 | Cargo Lamp |
| Callout | Component Name |
|---|---|
| 1 | Body Panel - RH |
| 2 | Junction Block - Rear Lamps |
| Callout | Component Name |
|---|---|
| 1 | Rear Bumper |
| 2 | Tail Lamp Jumper Harness |
| 3 | Inline Connector C403 |
| 4 | License Plate Lamp-RH (LH similar) |
| Callout | Component Name |
|---|---|
| 1 | Lamp Socket |
| 2 | Bulb |
| 3 | RH License Lamp |
| 4 | Bumper |
| 5 | LH License Lamp |
| 6 | Rear Cross Sill |
| 7 | Rear Lamps Bussing Block |
| Callout | Component Name |
|---|---|
| 1 | Trailer Wiring Connector |
| 2 | Trailer Wiring Receptacle |
| 3 | Frame |
| 4 | Trailer Hitch Receiver |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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