2009 GMC YUKON HYBRID maintenance schedule

Seats and Restraint System............................. 1-1
Front Seats ............................................... 1-2
Restraint System Check .............................. 1-3
Features and Controls ..................................... 2-1
Storage Areas ........................................... 2-2
Starting and Operating Your Vehicle ............. 2-3
Instrument Panel ............................................. 3-1
Climate Controls ........................................ 3-2
Warning Lights, Gages, and Indicators .......... 3-3
Driver Information Center (DIC) ..................3-12
Audio System(s) ....................................... 3-14Driving Your Vehicle
....................................... 4-1
Your Driving, the Road, and the Vehicle ....... 4-2
Towing ..................................................... 4-2
Service and Appearance Care .......................... 5-1
Service ..................................................... 5-2
Checking Things Under the Hood ................. 5-3
Bulb Replacement .................................... 5-21
Electrical System ...................................... 5-22
Tires ...................................................... 5-24
Capacities and Specifications .....................5-52
Maintenance Schedule ..................................... 6-1
Maintenance Schedule ................................ 6-2
Index ............................................................
....
1
2009 Chevrolet Tahoe and GMC Yukon Two-Mode HybridM

A reading in the low pressure zone may be caused by
a dangerously low oil level or some other problem
causing low oil pressure. Check the oil as soon
as possible.
{CAUTION:
Do not keep driving if the oil pressure is low.
The engine can become so hot that it catches fire.
Someone could be burned. Check the oil as soon
as possible and have the vehicle serviced.
Notice:Lack of proper engine oil maintenance can
damage the engine. The repairs would not be
covered by the vehicle warranty. Always follow the
maintenance schedule in this manual for changing
engine oil.
AUTO STOP
When the engine goes into Automatic Engine Stop, the
oil pressure gage drops to zero when the tachometer
is at the AUTO STOP position. This is normal and
oil pressure returns to the normal operating range once
the engine starts.
SeeStarting the Vehicle on page 2-3for more
information.
AUTO STOP displays in the Driver Information
Center (DIC) when the vehicle speed is zero.
SeeDIC Warnings and Messages on page 3-12
for more information.
3-9

Oil Pressure Light
{CAUTION:
Do not keep driving if the oil pressure is low.
The engine can become so hot that it catches fire.
Someone could be burned. Check the oil as soon
as possible and have the vehicle serviced.
Notice:Lack of proper engine oil maintenance can
damage the engine. The repairs would not be
covered by the vehicle warranty. Always follow the
maintenance schedule in this manual for changing
engine oil.This light comes on briefly
as a check it works, when
the ignition is in ON/RUN.
If it does not, have the
vehicle serviced.
If the light comes on and stays on, it means that oil is
not flowing through the engine properly. The vehicle
could be low on oil and might have some other system
problem.
During an AUTO STOP there is zero oil pressure, but
this light will not come on.
3-10

Power Steering Fluid
The vehicle has electric power steering and does not
use power steering fluid.
Brakes
Brake Fluid
The brake master cylinder
reservoir is filled with
DOT-3 brake fluid. See
Engine Compartment
Overview on page 5-4
for the location of
the reservoir.
There are only two reasons why the brake fluid level in
the reservoir might go down:
•The brake fluid level goes down because of normal
brake lining wear. When new linings are installed,
the fluid level goes back up.
•A fluid leak in the brake hydraulic system can also
cause a low fluid level. Have the brake hydraulic
system fixed, since a leak means that sooner
or later the brakes will not work well.Do not top off the brake fluid. Adding fluid does not
correct a leak. If fluid is added when the linings
are worn, there will be too much fluid when new brake
linings are installed. Add or remove brake fluid, as
necessary, only when work is done on the brake
hydraulic system.
{CAUTION:
If too much brake fluid is added, it can spill on
the engine and burn, if the engine is hot enough.
You or others could be burned, and the vehicle
could be damaged. Add brake fluid only when
work is done on the brake hydraulic system.
See “Checking Brake Fluid” in this section.
When the brake fluid falls to a low level, the brake
warning light comes on. See “Brake System Warning
Light” in the owner manual.
Refer to the Maintenance Schedule to determine when
to check the brake fluid. See “Scheduled Maintenance”
in the owner manual.
5-11

Tire Inspection and Rotation
Tires should be rotated every 5,000 to 8,000 miles
(8 000 to 13 000 km).
Any time you notice unusual wear, rotate your tires
as soon as possible and check wheel alignment.
Also check for damaged tires or wheels. See “When It
Is Time for New Tires” and “Wheel Replacement” in
the Index of the owner manual for more information.
The purpose of regular rotation is to achieve more
uniform wear for all tires on the vehicle. The first rotation
is the most important. See “Scheduled Maintenance”
in the Index of the owner manual.When rotating your tires, always use the correct rotation
pattern shown here.
After the tires have been rotated, adjust the front and
rear inflation pressures as shown on the Tire and
Loading Information label. See “Loading Your Vehicle”
in the Index of the owner manual for an example of
the label and its location on your vehicle.
The Tire Pressure Monitor System (TPMS) sensors will
need to be reset after a tire rotation. See “TPMS
Sensor Identification Codes” under “Tire Pressure
Monitor Operation”.
Make certain that all wheel nuts are properly tightened.
See “Wheel Nut Torque” under “Capacities and
Specifications” in the Index of the owner manual.
5-29

Maintenance Schedule......................................6-2
At Least Once a Year.....................................6-2Recommended Fluids and Lubricants................6-2
Engine Drive Belt Routing................................6-2
Section 6 Maintenance Schedule
6-1

Maintenance Schedule
At Least Once a Year
Tire Sealant and Compressor Kit
Check the sealant expiration date printed on the
instruction label of the Tire Sealant and Compressor Kit
at least once a year. See your dealer/retailer for a
replacement canister.
Recommended Fluids and
Lubricants
Fluids identified below are specific to the hybrid
vehicle and can be obtained from your dealer/retailer.
See the owner manual for the other fluids and lubricants
recommended for the vehicle.
Usage Fluid/Lubricant
Drive Motor/
Generator
Control Module
(DMCM)
Cooling SystemAlways use the pre-mixed
50/50 mixture of de-ionized water
and DEX-COOL
®(silicate-free)
coolant available at your
dealer/retailer. SeeDrive
Motor/Generator Control Module
(DMCM) Cooling System on
page 5-6.
Engine Drive Belt Routing
6-2

M
Maintenance Schedule
At Least Once a Year.................................... 6-2
Recommended Fluids and Lubricants............... 6-2
Manual, How to Use........................................... iii
Manual Lumbar Controls.................................... 1-2
Manual Reclining Seatbacks............................... 1-3
N
Navigation/Radio System..................................3-14
O
Oil
Pressure Light.............................................3-10
Oil Pressure Gage............................................ 3-8
Orange Covered Wiring..................................... 5-3
Owners, Canadian............................................... ii
P
Power
Seat............................................................ 1-2
Power Outlet Alternating Current......................... 2-2
Power Steering Fluid.......................................5-11
R
Radios
Navigation/Radio System..............................3-14
Reclining Seatbacks, Manual.............................. 1-3
Recommended Fluids and Lubricants.................. 6-2
Regenerative Braking......................................2-10
Restraint System Check
Replacing Restraint System Parts
After a Crash............................................ 1-3
Routing, Engine Drive Belt................................. 6-2
Running the Vehicle While Parked.....................2-10
3