2010 GMC YUKON XL automatic transmission

.Windshield wiper blade inspection for wear,
cracking, or contamination and windshield
and wiper blade cleaning, if contaminated. See
Windshield, Backglass, and Wiper Blades
on
page 6‑114. Worn or damaged wiper blade
replacement. See Windshield Wiper Blade
Replacement on page 6‑61.
.Body hinges and latches, key lock cylinders,
folding seat hardware, and liftgate hinges,
linkage, and handle pivot points lubrication.
See Recommended Fluids and Lubricants
on
page 7‑11. More frequent lubrication may be
required when vehicle is exposed to a corrosive
environment. Applying silicone grease on
weatherstrips with a clean cloth makes them
last longer, seal better, and not stick or squeak.
.Restraint system component check. See Checking
the Restraint Systems on page 2‑101.
.Automatic transmission fluid level check
and adding fluid, if needed. See Automatic
Transmission Fluid (4-Speed Transmission)
on
page 6‑24or Automatic Transmission Fluid
(6-Speed Transmission) on page 6‑27.
.Four‐wheel drive vehicles: Transfer case fluid level
check and adding fluid, if needed.
.Engine air cleaner filter inspection. See Engine Air
Cleaner/Filter on page 6‑22.
Additional Required Services
At Each Fuel Stop
.Engine oil level check. See Engine Oilon
page 6‑18.
.Engine coolant level check. See Engine Coolanton page 6‑32.
.Windshield washer fluid level check.
SeeWindshield Washer Fluid on page 6‑41.
Once a Month
.Tire inflation check. See Inflation - Tire Pressureon page 6‑72.
.Tire wear inspection. See Tire Inspection and
Rotation on page 6‑78.
Once a Year
.Starter switch check. See Owner Checks and
Services on page 7‑9.
.Parking brake and automatic transmission P (Park)
mechanism check. See Owner Checks and
Services on page 7‑9.
7-5

.Automatic transmission shiftlock control system
check. SeeOwner Checks and Serviceson
page 7‑9.
.Ignition transmission lock check. See Owner
Checks and Services on page 7‑9.
.Hood and liftgate gas strut support service.
Visually inspect gas strut for signs of wear,
corrosion, cracks, loss of lubricant, or other
damage. Check the hold open ability of gas strut.
Replace as necessary with genuine parts from
your dealer.
.Engine cooling system and pressure cap pressure
check. Radiator and air conditioning condenser
outside cleaning. See Cooling System
on
page 6‑30.
.Exhaust system and nearby heat shields
inspection for loose or damaged components.
.Accelerator pedal check for damage, high effort,
or binding. Replace if needed.
First Engine Oil Change After Every
40 000 km/25,000 Miles
.Fuel system inspection for damage or leaks.
First Engine Oil Change After Every
80 000 km/50,000 Miles
.Engine air cleaner filter replacement. See Engine
Air Cleaner/Filter on page 6‑22.
.Automatic transmission fluid change (severe
service) for vehicles with Gross Vehicle Weight
Rating (GVWR) over 3 901 kg (8,600 lbs) or mainly
driven in heavy city traffic in hot weather, in hilly
or mountainous terrain, when frequently towing a
trailer, or used for taxi, police, or delivery service.
See Automatic Transmission Fluid (4-Speed
Transmission)
on page 6‑24or Automatic
Transmission Fluid (6-Speed Transmission)on
page 6‑27.
.Four‐wheel drive only: Transfer case fluid change
(severe service) for vehicles mainly driven when
frequently towing a trailer, or used for taxi, police,
or delivery service. Check vent hose at transfer
case for kinks and proper installation. Check to
be sure vent hose is unobstructed, clear, and free
of debris. During any maintenance, if a power
washer is used to clean mud and dirt from the
underbody, care should be taken to not directly
spray the transfer case output seals. High pressure
water can overcome the seals and contaminate
the transfer case fluid. Contaminated fluid will
decrease the life of the transfer case and should
be replaced.
7-6

.Evaporative control system inspection. Check all
fuel and vapor lines and hoses for proper hook‐up,
routing, and condition. Check that the purge valve,
if the vehicle has one, works properly. Replace as
needed.An Emission Control Service. The U.S.
Environmental Protection Agency or the California
Air Resources Board has determined that the
failure to perform this maintenance item will not
nullify the emission warranty or limit recall liability
prior to the completion of the vehicle's useful
life. We, however, urge that all recommended
maintenance services be performed at the
indicated intervals and the maintenance be
recorded.
First Engine Oil Change After Every
160 000 km/100,000 Miles
.Automatic transmission fluid change (normal
service). See Automatic Transmission Fluid
(4-Speed Transmission)
on page 6‑24or
Automatic Transmission Fluid (6-Speed
Transmission) on page 6‑27.
.Four‐wheel drive only: Transfer case fluid change
(normal service). Check vent hose at transfer
case for kinks and proper installation. Check to
be sure vent hose is unobstructed, clear, and free
of debris. During any maintenance, if a power
washer is used to clean mud and dirt from the
underbody, care should be taken to not directly
spray the transfer case output seals. High pressure
water can overcome the seals and contaminate
the transfer case fluid. Contaminated fluid will
decrease the life of the transfer case and should
be replaced.
.Spark plug replacement and spark plug wires
inspection. An Emission Control Service.
First Engine Oil Change After Every
240 000 km/150,000 Miles
.Engine cooling system drain, flush, and refill,
cooling system and cap pressure check, and
cleaning of outside of radiator and air conditioning
condenser (or every 5 years, whichever occurs
first). SeeEngine Coolant
on page 6‑32.
An Emission Control Service.
.Engine accessory drive belt inspection for fraying,
excessive cracks, or obvious damage and
replacement, if needed. An Emission Control
Service.
7-7

Scheduled Maintenance
ServiceMaintenanceIMaintenance II
Change engine oil and filter. Reset oil life system. • •
Engine coolant level check. • •
Windshield washer fluid level check. • •
Tire inflation pressures check. • •
Tire wear inspection. • •
Rotate tires. • •
Fluids visual leak check. • •
Engine air cleaner filter inspection (vehicles driven in dusty conditions only). • •
Brake system inspection. • •
Steering and suspension inspection. •
Chassis components lubrication. •
Engine cooling system inspection. •
Windshield wiper blades inspection. •
Body components lubrication. •
Restraint system components check. •
Automatic transmission fluid level check. •
Four‐wheel drive only: Transfer case fluid level check. •
Engine air cleaner filter inspection (vehicles not driven in dusty conditions). •
7-8

Owner Checks and Services
Starter Switch Check
{WARNING:
When you are doing this inspection, the vehicle
could move suddenly. If the vehicle moves, you or
others could be injured.
1. Before starting this check, be sure there is enough room around the vehicle.
2. Firmly apply both the parking brake and the regular brake. See Parking Brake on page 3‑48.
Do not use the accelerator pedal, and be ready to
turn off the engine immediately if it starts.
3. Try to start the engine in each gear. The vehicle should start only in P (Park) or N (Neutral). If the
vehicle starts in any other position, contact your
dealer for service.
Automatic Transmission Shift Lock
Control System Check
{WARNING:
When you are doing this inspection, the vehicle
could move suddenly. If the vehicle moves, you or
others could be injured.
1. Before starting this check, be sure there is enough room around the vehicle. It should be parked on a
level surface.
2. Firmly apply the parking brake. See Parking Brake
on page 3‑48.
Be ready to apply the regular brake immediately if
the vehicle begins to move.
3. With the engine off, turn the ignition to ON/RUN, but do not start the engine. Without applying the
regular brake, try to move the shift lever out of
P (Park) with normal effort. If the shift lever moves
out of P (Park), contact your dealer for service.
7-9

Ignition Transmission Lock Check
While parked, and with the parking brake set, try to turn
the ignition to LOCK/OFF in each shift lever position.
.The ignition should turn to LOCK/OFF only when
the shift lever is in P (Park).
.The ignition key should come out only in
LOCK/OFF.
Contact your dealer if service is required.
Parking Brake and Automatic
Transmission P (Park) Mechanism
Check
{WARNING:
When you are doing this check, the vehicle could
begin to move. You or others could be injured and
property could be damaged. Make sure there is
room in front of the vehicle in case it begins to
roll. Be ready to apply the regular brake at once
should the vehicle begin to move. Park on a fairly steep hill, with the vehicle facing
downhill. Keeping your foot on the regular brake,
set the parking brake.
.To check the parking brake's holding ability:
With the engine running and the transmission in
N (Neutral), slowly remove foot pressure from the
regular brake pedal. Do this until the vehicle is held
by the parking brake only.
.To check the P (Park) mechanism's holding
ability: With the engine running, shift to P (Park).
Then release the parking brake followed by the
regular brake.
Contact your dealer if service is required.
7-10

Recommended Fluids and
Lubricants
Fluids and lubricants identified below by name, part
number, or specification can be obtained from your
dealer.Usage Fluid/Lubricant
Engine Oil Engine oil which meets GM Standard
GM6094M and displays the American
Petroleum Institute Certified for
Gasoline Engines starburst symbol.
To determine the proper viscosity for
your vehicle's engine, see
Engine Oil
on page 6‑18.
Engine Coolant 50/50 mixture of clean, drinkable
water and use only DEX-COOL
®
Coolant. See
Engine Coolanton
page 6‑32.
Hydraulic Brake System DOT 3 Hydraulic Brake Fluid
(GM Part No. U.S. 12377967,
in Canada 89021320).
Usage Fluid/Lubricant
Windshield
Washer Optikleen®Washer Solvent.
Power Steering System GM Power Steering Fluid
(GM Part No. U.S. 89021184,
in Canada 89021186).
Automatic
Transmission DEXRON
®-VI Automatic Transmission
Fluid.
Key Lock
Cylinders Multi-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241,
in Canada 10953474).
Chassis
Lubrication Chassis Lubricant (GM Part No.
U.S. 12377985, in Canada 88901242)
or lubricant meeting requirements of
NLGI #2, Category LB or GC-LB.
Front Axle
(1500 Series
Vehicles with Four-Wheel Drive) SAE 80W-90 Axle Lubricant
(GM Part No. U.S. 89021671,
in Canada 89021672).
7-11

Usage Fluid/Lubricant
Front Axle
(2500 Series
Vehicles with Four-Wheel Drive) SAE 75W-90 Synthetic Axle Lubricant
(GM Part No. U.S. 89021677,
in Canada 89021678).
Rear Axle SAE 75W-90 Synthetic Axle Lubricant
(GM Part No. U.S. 89021677,
in Canada 89021678).
Transfer Case (Four‐Wheel Drive) DEXRON
®-VI Automatic Transmission
Fluid.
Front Axle
Propshaft Spline
or One-Piece
Propshaft Spline (Two-Wheel
Drive with Auto. Trans.) Spline Lubricant, Special Lubricant
(GM Part No. U.S. 12345879,
in Canada 10953511).
Usage Fluid/Lubricant
Hood Hinges
Multi-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241,
in Canada 10953474).
Outer Tailgate Handle Pivot
Points Multi-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241,
in Canada 10953474).
Weatherstrip Conditioning Weatherstrip Lubricant
(GM Part No. U.S. 3634770,
in Canada 10953518) or
Dielectric Silicone Grease
(GM Part No. U.S. 12345579,
in Canada 992887).
Weatherstrip Squeaks Synthetic Grease with
Teflon, Superlube
(GM Part No. U.S. 12371287,
in Canada 10953437).
7-12