2009 GMC YUKON HYBRID power steering fluid

Service............................................................5-2
Doing Your Own Service Work.........................5-2
Checking Things Under the Hood.....................5-3
High Voltage Devices and Wiring......................5-3
Engine Compartment Overview.........................5-4
Automatic Transmission Fluid...........................5-5
Drive Motor/Generator Control Module (DMCM)
Coolant Surge Tank Pressure Cap..................5-6
Drive Motor/Generator Control Module (DMCM)
Cooling System...........................................5-6
Power Steering Fluid.....................................5-11
Brakes........................................................5-11
Battery........................................................5-15
Jump Starting...............................................5-16
Bulb Replacement..........................................5-21
Taillamps, Turn Signal, Stoplamps and
Back-up Lamps.........................................5-21
Replacement Bulbs.......................................5-22Electrical System............................................5-22
Fuses and Circuit Breakers............................5-22
Underhood Fuse Block..................................5-22
Tires..............................................................5-24
Inflation - Tire Pressure.................................5-24
Tire Pressure Monitor Operation.....................5-25
Tire Inspection and Rotation...........................5-29
Tire Chains..................................................5-30
If a Tire Goes Flat........................................5-30
Tire Sealant and Compressor Kit
(Without Selector Switch)............................5-32
Tire Sealant and Compressor Kit
(With Selector Switch)................................5-42
Tire Sealant and Compressor Kit Storage.........5-50
Capacities and Specications..........................5-52
Section 5 Service and Appearance Care
5-1

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

F
Flat Tire........................................................5-30
Fluid, Power Steering......................................5-11
Fuel
Gage .........................................................3-11
Fuel Economy Gage......................................... 3-5
G
Gage
Engine Coolant Temperature........................... 3-8
Fuel..........................................................3-11
Fuel Economy.............................................. 3-5
Oil Pressure................................................. 3-8
Tachometer.................................................. 3-4
H
High Voltage Devices and Wiring........................ 5-3
I
Inflation - Tire Pressure...................................5-24
Inflator Kit, Tire.......................................5-32, 5-42
Instrument Panel Cluster................................... 3-3
Introduction........................................................ iii
J
Jump Starting.................................................5-16
L
Light
Antilock Brake System (ABS) Warning.............. 3-7
Brake System Warning................................... 3-6
Charging System........................................... 3-4
Oil Pressure...............................................3-10
StabiliTrak
®Indicator..................................... 3-7
Lumbar
Manual Controls............................................ 1-2
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