2010 GMC YUKON HYBRID inflation pressure

Section 6 Service and Appearance Care
Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Doing Your Own Service Work . . . . . . . . . . . . . . . . . . 6-2
Checking Things Under the Hood . . . . . . . . . . . . . . . . .6-3
High Voltage Devices and Wiring . . . . . . . . . . . . . . . 6-3
Engine Compartment Overview . . . . . . . . . . . . . . . . . 6-4
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . 6-5
Drive Motor/Generator Control Module (DMCM) Coolant Surge Tank Pressure Cap . . . . . . . . . . . . 6-8
Drive Motor/Generator Control Module (DMCM) Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9
Power Steering Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16
Jump Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-24
Taillamps, Turn Signal, Stoplamps and Back-up Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-24
Replacement Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25 Electrical System
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25
High Voltage Devices and Wiring . . . . . . . . . . . . . . 6-25
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . . . 6-26
Underhood Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 6-26
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-28
Inflation - Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . 6-28
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . 6-29
Tire Inspection and Rotation . . . . . . . . . . . . . . . . . . . 6-33
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-34
If a Tire Goes Flat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-34
Tire Sealant and Compressor Kit (Without Selector Switch) . . . . . . . . . . . . . . . . . . . . 6-35
Tire Sealant and Compressor Kit (With Selector Switch) . . . . . . . . . . . . . . . . . . . . . . . 6-45
Tire Sealant and Compressor Kit Storage . . . . . . 6-55
Appearance Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-56
Vehicle Care/Appearance Materials . . . . . . . . . . . . 6-56
Capacities and Specifications . . . . . . . . . . . . . . . . . . .6-57
6-1

Tires
Inflation - Tire Pressure
Tires need the correct amount of air pressure to operate
effectively.
Notice:
Do not let anyone tell you that
under‐inflation or over‐inflation is all right.
It is not. If your tires do not have enough air
(under‐inflation), you can get the following:
.Too much flexing
.Too much heat
.Tire overloading
.Premature or irregular wear
.Poor handling
.Reduced fuel economy
If your tires have too much air (over‐inflation),
you can get the following:
.Unusual wear
.Poor handling
.Rough ride
.Needless damage from road hazards
A vehicle specific Tire and Loading Information label is
attached to your vehicle. This label shows your
vehicle's original equipment tires and the correct
inflation pressures for your tires when they are cold.
The recommended cold tire inflation pressure, shown
on the label, is the minimum amount of air pressure
needed to support your vehicle's maximum load
carrying capacity.
For additional information regarding how much weight
your vehicle can carry, and an example of the Tire and
Loading Information label, see “Loading Your Vehicle”in
the Index of the owner manual. How you load your
vehicle affects vehicle handling and ride comfort. Never
load your vehicle with more weight than it was designed
to carry.
6-28

When to Check
Check your tires once a month or more.
How to Check
Use a good quality pocket-type gage to check tire
pressure. You cannot tell if your tires are properly
inflated simply by looking at them. Radial tires may look
properly inflated even when they're underinflated.
Check the tire's inflation pressure when the tires are
cold. Cold means your vehicle has been sitting for at
least three hours or driven no more than 1 mile (1.6 km).
Remove the valve cap from the tire valve stem. Press
the tire gage firmly onto the valve to get a pressure
measurement. If the cold tire inflation pressure matches
the recommended pressure on the tire and loading
information label, no further adjustment is necessary.
If the pressure is low, add air until you reach the
recommended amount.
If you overfill the tire, release air by pushing on the
metal stem in the center of the tire valve. Recheck the
tire pressure with the tire gage.
Be sure to put the valve caps back on the valve stems.
They help prevent leaks by keeping out dirt and
moisture.
Tire Pressure Monitor Operation
This vehicle may have a Tire Pressure Monitor System
(TPMS). The TPMS is designed to warn the driver when
a low tire pressure condition exists. TPMS sensors are
mounted onto each tire and wheel assembly. The TPMS
sensors monitor the air pressure in the vehicle's tires
and transmit the tire pressure readings to a receiver
located in the vehicle.
When a low tire pressure
condition is detected, the
TPMS will illuminate the
low tire pressure warning
symbol located on the
instrument panel cluster.
At the same time a message to check the pressure
in a specific tire appears on the Driver Information
Center (DIC) display. The low tire pressure warning
light and the DIC warning message come on at
each ignition cycle until the tires are inflated to
the correct inflation pressure. Using the DIC, tire
pressure levels can be viewed by the driver. For
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additional information and details about the DIC
operation and displays seeDIC Warnings and
Messages
on page 4‑12. Also, see “DIC Operation and
Displays” in the Index of the owner manual for more
information.
The low tire pressure warning light may come on in cool
weather when the vehicle is first started, and then turn
off as you start to drive. This could be an early indicator
that the air pressure in the tire(s) are getting low and
need to be inflated to the proper pressure.
A Tire and Loading Information label, attached to your
vehicle, shows the size of your vehicle's original
equipment tires and the correct inflation pressure for
your vehicle's tires when they are cold. See “Loading
Your Vehicle” for an example of the Tire and Loading
Information label and its location on your vehicle.
Also see Inflation - Tire Pressure on page 6‑28. Your vehicle's TPMS can warn you about a low tire
pressure condition but it does not replace normal tire
maintenance. See
“Tire Inspection and Rotation” and
“Tires” in the Index of the owner manual for more
information.
Notice: Using non‐approved tire sealants could
damage the Tire Pressure Monitor System (TPMS)
sensors. TPMS sensor damage caused by using an
incorrect tire sealant is not covered by the vehicle
warranty. Always use the GM approved tire sealant
available through your dealer/retailer.
Your vehicle, when new, included a factory‐installed
Tire Sealant and Compressor Kit. This kit uses a
GM approved liquid tire sealant. See Tire Sealant and
Compressor Kit (Without Selector Switch)
on
page 6‑35or Tire Sealant and Compressor Kit
(With Selector Switch) on page 6‑45.
6-30

TPMS Sensor Matching Process
Each TPMS sensor has a unique identification code.
Any time you rotate your vehicle's tires or replace one
or more of the TPMS sensors, the identification codes
will need to be matched to the new tire/wheel position.
The sensors are matched to the tire/wheel positions in
the following order: driver side front tire, passenger
side front tire, passenger side rear tire, and driver side
rear tire using a TPMS diagnostic tool. See your
dealer/retailer for service.
The TPMS sensors can also be matched to each
tire/wheel position by increasing or decreasing the
tire's air pressure. If increasing the tire's air pressure,
do not exceed the maximum inflation pressure indicated
on the tire's sidewall.
To decrease air-pressure out of a tire you can use the
pointed end of the valve cap, a pencil-style air pressure
gage, or a key.
You have two minutes to match the first tire/wheel
position, and five minutes overall to match all four
tire/wheel positions. If it takes longer than two minutes,
to match the first tire and wheel, or more than
five minutes to match all four tire and wheel positions
the matching process stops and you need to start over.The TPMS sensor matching process is outlined below:
1. Set the parking brake.
2. Turn the ignition switch to ON/RUN with the engine off.
3. Press
QandKon the Remote Keyless Entry
(RKE) transmitter at the same time for
approximately five seconds. The horn sounds
twice to signal the receiver is in relearn mode and
TIRE LEARNING ACTIVE message displays on
the DIC screen.
4. Start with the driver side front tire.
5. Remove the valve cap from the valve cap stem. Activate the TPMS sensor by increasing or
decreasing the tire's air pressure for five seconds,
or until a horn chirp sounds. The horn chirp, which
may take up to 30 seconds to sound, confirms that
the sensor identification code has been matched to
this tire and wheel position.
6. Proceed to the passenger side front tire, and repeat the procedure in Step 5.
7. Proceed to the passenger side rear tire, and repeat the procedure in Step 5.
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8. Proceed to the driver side rear tire, and repeat theprocedure in Step 5. The horn sounds two times to
indicate the sensor identification code has been
matched to the driver side rear tire, and the TPMS
sensor matching process is no longer active.
The TIRE LEARNING ACTIVE message on the
DIC display screen goes off.
9. Turn the ignition switch to LOCK/OFF.
10. Set all four tires to the recommended air pressure level as indicated on the Tire and Loading
Information label.
11. Put the valve caps back on the valve stems.
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.
6-33

9. Inflate the tire to the recommended inflationpressure using the pressure gage (E).
The recommended inflation pressure can be
found on the Tire and Loading Information label.
See Inflation - Tire Pressure on page 6‑28.
The pressure gage (E) may read higher than the
actual tire pressure while the compressor is on.
Turn the compressor off to get an accurate
pressure reading. The compressor may be turned
on/off until the correct pressure is reached.
Notice: If the recommended pressure cannot be
reached after approximately 25 minutes, the vehicle
should not be driven farther. The tire is too severely
damaged and the tire sealant and compressor kit
cannot inflate the tire. Remove the power plug from
the accessory power outlet and unscrew the
inflating hose from the tire valve. See “Roadside
Assistance Program” in the owner manual. 10. Press the on/off button (D) to turn the tire sealant
and compressor kit off.
The tire is not sealed and will continue to
leak air until the vehicle is driven and the
sealant is distributed in the tire, therefore,
Steps 11 through 17 must be done immediately
after Step 10.
Be careful while handling the tire sealant and
compressor kit as it could be warm after usage.
11. Unplug the power plug (C) from the accessory power outlet in the vehicle.
12. Turn the sealant/air hose (F) counterclockwise to remove it from the tire valve stem.
13. Replace the tire valve stem cap.
14. Replace the sealant/air hose (F), and the power plug (C) back in their original location.
6-40

15. If the flat tire was ableto inflate to the
recommended inflation
pressure, remove the
maximum speed label
from the sealant
canister (B) and place
it in a highly visible
location.
The label is a reminder not to exceed 55 mph
(90 km/h) until the damaged tire is repaired or
replaced.
16. Return the equipment to its original storage location in the vehicle.
17. Immediately drive the vehicle 5 miles (8 km) to distribute the sealant in the tire.
18. Stop at a safe location and check the tire pressure. Refer to Steps 1 through 11 under “Using the Tire
Sealant and Compressor Kit without Sealant to
Inflate a Tire (Not Punctured).” If the tire pressure has fallen more than 10 psi
(68 kPa) below the recommended inflation
pressure, stop driving the vehicle. The tire is too
severely damaged and the tire sealant cannot seal
the tire. See
“Roadside Assistance Program” in the
owner manual.
If the tire pressure has not dropped more than
10 psi (68 kPa) from the recommended inflation
pressure, inflate the tire to the recommended
inflation pressure.
19. Wipe off any sealant from the wheel, tire or vehicle.
20. Dispose of the used sealant canister (B) and sealant/air hose (F) assembly at a local dealer/
retailer or in accordance with local state codes
and practices.
21. Replace it with a new canister available from your dealer/retailer.
22. After temporarily sealing a tire using the tire sealant and compressor kit, take the vehicle to
an authorized dealer/retailer within a 100 miles
(161 km) of driving to have the tire repaired or
replaced.
6-41