GMC 2015 Sierra - Headlamp Aiming

Black plate (1,1)
GMC 2015i Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
8431499) - 2015 - CRC - 6/20/14
Vehicle Care 10-1
Vehicle Care
General Information
General Information . . . . . . . . . . 10-3
California Proposition
65 Warning . . . . . . . . . . . . . . . . . 10-3
California Perchlorate
Materials Requirements . . . . 10-3
Accessories and
Modifications . . . . . . . . . . . . . . . 10-3
Vehicle Checks
Doing Your Own
Service Work . . . . . . . . . . . . . . . 10-4
Hood . . . . . . . . . . . . . . . . . . . . . . . . 10-5
Engine Compartment
Overview . . . . . . . . . . . . . . . . . . . 10-6
Engine Oil . . . . . . . . . . . . . . . . . . 10-11
Engine Oil Life System . . . . . 10-14
Automatic Transmission
Fluid (6 Speed
Transmission) . . . . . . . . . . . . . 10-15
Automatic Transmission
Fluid (8 Speed
Transmission) . . . . . . . . . . . . . 10-18
Engine Air Cleaner/Filter . . . . 10-19
Cooling System . . . . . . . . . . . . 10-20
Engine Coolant . . . . . . . . . . . . . 10-21
Engine Overheating . . . . . . . . 10-24
Overheated Engine
Protection
Operating Mode . . . . . . . . . . . 10-26
Engine Fan . . . . . . . . . . . . . . . . . 10-27
Power Steering Fluid (1500
Series) . . . . . . . . . . . . . . . . . . . . 10-27
Power Steering Fluid (2500/
3500 Series) . . . . . . . . . . . . . . 10-27
Washer Fluid . . . . . . . . . . . . . . . 10-28
Brakes . . . . . . . . . . . . . . . . . . . . . 10-29
Brake Fluid . . . . . . . . . . . . . . . . . 10-30
Battery . . . . . . . . . . . . . . . . . . . . . 10-32
Four-Wheel Drive . . . . . . . . . . . 10-32
Front Axle . . . . . . . . . . . . . . . . . . 10-33
Rear Axle . . . . . . . . . . . . . . . . . . 10-34
Noise Control System . . . . . . 10-35
Starter Switch Check . . . . . . . 10-36
Automatic Transmission Shift
Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . 10-37
Ignition Transmission Lock
Check . . . . . . . . . . . . . . . . . . . . . 10-37
Park Brake and P (Park)
Mechanism Check . . . . . . . . 10-37
Wiper Blade
Replacement . . . . . . . . . . . . . . 10-38
Glass Replacement . . . . . . . . 10-38
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . 10-39
Bulb Replacement
Bulb Replacement . . . . . . . . . . 10-39
Halogen Bulbs . . . . . . . . . . . . . . 10-39
LED Lighting . . . . . . . . . . . . . . . 10-39
Headlamps, Front Turn
Signal, Sidemarker, and
Parking Lamps . . . . . . . . . . . . 10-39
Fog Lamps . . . . . . . . . . . . . . . . . 10-40
Taillamps (Chassis Cab
Models) . . . . . . . . . . . . . . . . . . . 10-40
Taillamps, Turn Signal,
Stoplamps, and Back-Up
Lamps . . . . . . . . . . . . . . . . . . . . 10-41
Center High-Mounted
Stoplamp (CHMSL) and
Cargo Lamp . . . . . . . . . . . . . . 10-42
Replacement Bulbs . . . . . . . . . 10-43