Workshop Repair and Service Manuals GMC SIERRA
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Body Electrical

02-08-42-001F Headlamp Tail Lamp License Lamp or Fog Driving Lamp Damage - (Feb 10 2012) Lighting Exterior Lighting License Lamps - part 3      Becausethese bulbs burn hotter and brighter, they also have a reduced service life. Thesebulbs are different in appearance than the original equipment. Some have blue tinton the bulb and othersare clear. If in doubt, the bulb...
02-08-42-001F Headlamp Tail Lamp License Lamp or Fog Driving Lamp Damage - (Feb 10 2012) Lighting Exterior Lighting License Lamps - part 2      This damage can also be caused by aftermarket shields thatare often tinted in color. Notice:License lamps and headlamps damaged by chemicals, improper cleaning, or overheatingdue to being covered are not covered under the new...
02-08-42-001F Headlamp Tail Lamp License Lamp or Fog Driving Lamp Damage - (Feb 10 2012) Lighting Exterior Lighting License Lamps      Subject: Headlamp, Tail Lamp, License Lamp or Fog/Driving Lamp Damage Models:  2013 and Prior GM Passenger Cars and Trucks     This bulletin is being revised to add the 2013 model year and to add the...
04-08-48-001D Rear Window Defogger - Broken Heating Grid Detection Method - (Apr 17 2012) Defoggers Rear Glass - part 2      Start the engine and turn onthe back window defogger. A distinct color change will take place at each conductivegrid line. Repeat for the bottom grid lines until they have all been checked in thedriver side zone.Repeat the...
04-08-48-001D Rear Window Defogger - Broken Heating Grid Detection Method - (Apr 17 2012) Defoggers Rear Glass      Subject: Rear Window Defogger – Broken Heating Grid Detection Method Models:  2013 and Prior GM Passenger Cars and Light Duty Trucks     This bulletin is being revised to add the 2013 model year and change...
07-08-42-006H Information on Available BCM Calibrations to Restore Bulb Outage Detection on Vehicles Produced by a Second Stage Manufacturer (Upfitter) Turn Signals Flash Fast after Factory Box Removed - (Nov 20 2012) Lighting Bulbs      Subject: Information on Available BCM Calibrations to Restore Bulb Outage Detection on VehiclesProduced by a Second Stage Manufacturer (Upfitter), Turn Signals Flash Fast afterFactory Box Removed Models:...
Ambient Light Sensor Replacement Lighting Interior Lighting      Ambient Light Sensor Replacement Callout Component Name 1 Instrument Panel Trim Panel Refer toInstrument Panel Upper Trim Panel with Windshield Defroster Nozzle Grille Replacement. 2 Headlamp Auto Control...
Backup Lamp Bulb Replacement (Chevrolet) Lighting Bulbs      Backup Lamp Bulb Replacement Callout Component Name Preliminary Procedure Remove either the LR or RR tail lamp assembly. Refer toTail Lamp Replacement. 1 Back Up Lamp Bulb
Brake Pedal Position Sensor Replacement (Without JF4) Lighting      Removal ProcedurePlace the ignition switch in the OFF position.Disconnect the brake pedal position sensor electrical connector. Remove the brake pedal position sensor bolt-(1). Remove the brake pedal position...
Center High-Mounted Stoplamp (CHMSL) and Cargo Lamp Lighting Bulbs      Cargo LampCenter High-Mounted Stoplamp (CHMSL) Bulb To replace one of these bulbs: Remove the two screws and lift off the lamp assembly.On the reverse side of the lamp assembly, remove the bulb socket by turning it...
Cigar Lighter Receptacle or 12-Volt Accessory Power Receptacle Replacement Accessory Outlets      Tools Required J 42059 Cigar Lighter Socket Remover Removal Procedure Remove the auxiliary power outlet fuse from the fuse block.Remove the receptacle:Look into the receptacle. There are two 3-mm (0.11-in) tab windows...
Dome Lamp Replacement Lighting Interior Lighting Dome Lamp      Dome Lamp Replacement Callout Component Name 1 Dome Lamp Lens Tip:Using a flat-bladed tool pry down on right side of lens toavoid damaging tab. 2 Dome Lamp Housing Tip:Disconnect electrical connector.
Drive Motor Battery Inverter Current Limit Resistor Replacement Accessory Outlets      Drive Motor Battery Inverter Current Limit Resistor Replacement Callout Component Name Danger:Always perform the High Voltage Disabling procedure prior toservicing any High Voltage component or connection....
Engine Air Cleaner Filter Lighting Bulbs      SeeEngine Compartment Overviewfor the location of theengine air cleaner/filter. When to Inspect the Engine Air Cleaner/Filter Inspect the air cleaner/filter at the scheduled maintenanceintervals and replace it at the first oil...
Engine Air Cleaner Filter Lighting Bulbs      If the vehicle has a diesel engine, see “PickupModels” under “Engine AirCleaner/Filter” in the Duramax® Diesel Supplementfor the correct inspection and replacement procedures. SeeEngine Compartment Overviewfor the location of...
Fog Lamp Aiming Lighting Exterior Lighting Fog Lamp      The front fog lamps must be aimed for proper illumination ofthe road. The front fog lamp aim should be checked when a new frontfog lamp assembly is installed, or if service or repairs in thefront end area may have disturbed...
Fog Lamp Switch Replacement (without RPO SLT) Lighting Exterior Lighting Fog Lamp      Fog Lamp Switch Replacement Callout Component Name 1 Instrument Panel Trim Plate Assembly Refer toInstrument Panel Trim Plate Replacement. 2 Headlamp and I/P Lamp Dimmer and Dome Lamp SwitchAssembly...
Fog Lamp Switch Replacement (with RPO SLT) Lighting Exterior Lighting Fog Lamp      Fog Lamp Switch Replacement Callout Component Name 1 Headlamp Switch Trim Plate Assembly Refer toHeadlamp Switch Bezel Replacement. 2 Headlamp and I/P Lamp Dimmer and Dome Lamp SwitchAssembly Tip:Fog...
Front Fog Lamp Bulb Replacement (Chevrolet) Lighting Bulbs      Front Fog Lamp Bulb Replacement Callout Component Name Preliminary ProceduresReach under the front air deflector in order to access thefog lamp bulb socket.Disconnect the electrical connector. 1 Fog Lamp Bulb...
Front Fog Lamp Cover Replacement (GMC HD) Lighting Exterior Lighting Fog Lamp      Front Fog Lamp Cover Replacement Callout Component Name Preliminary Procedure Reach under the front lower air deflector in order to accessand release the front fog lamp opening cover clips from the airdeflector....
Front Fog Lamp Replacement (GMC) Lighting Exterior Lighting Fog Lamp      Front Fog Lamp Replacement Callout Component Name Preliminary ProceduresRemove either the LF or RF wheelhouse liners. Refer toFront Wheelhouse Liner Replacement - Left Sidefor the LF orFront Wheelhouse Liner...
Front Side Marker Lamp Bulb Replacement (GMC) Lighting Exterior Lighting Side Markers      Front Side Marker Lamp Bulb Replacement Callout Component Name Preliminary Procedure Remove either the LF or RF headlamp assembly. Refer toHeadlamp Replacement. 1 Lamp Harness Socket Tip:Rotate the marker...
Headlamp Aiming (Chevrolet GMC) Lighting Exterior Lighting Head Lamp      Headlamp aiming is done with the low beam lamps. The highbeam lamps will be correctly aimed if the low beam lamps are aimedproperly. Screen Method for Headlamp Aiming (Visual Aim) The screen method requires an area set up...
Headlamp Bulb Replacement (GMC) Lighting Bulbs      Headlamp Bulb Replacement Callout Component Name Preliminary ProceduresOpen and support the hood assembly.If replacing the headlamp bulbs on the passenger side, removethe air cleaner box assembly. Refer toAir Cleaner...