Page 379 of 436
Fuses Usage
1 Cooling Fan 2
2 Cooling Fan 1
3 Auxiliary Power
4 Rear HVAC
5 Spare
6 Sun Roof
7 Antilock Brake System
8 Air Conditioning Clutch
9 Driver Side Low-Beam
10 Daytime Running Lamp 2
11 Passenger Side High-Beam
12 Passenger Side Park Lamp
13 Horn
14 Driver Side Park Lamp
15 Starter
16Electronic Throttle Control,
Engine Control Module
17 Emission Device 1
18 Even Coils, Injectors
19 Odd Coils, Injectors
20 Emission Device 2
21 Spare
22 Powertrain Control Module, Ignition
23 TransmissionFuses Usage
24 Mass Air ow Sensor
25 Airbag Display
26 Spare
27 Stoplamp
28 Passenger Side Low-Beam
29 Driver Side High-Beam
30 Battery Main 3
32 Spare
33 Engine Control Module, Battery
34Transmission Control Module,
Battery
35 Trailer Park Lamp
36 Front Wiper
37Driver Side Trailer Stoplamp,
Turn Signal
38 Spare
39 Fuel Pump
40 Not Used
41 All-Wheel Drive
42 Regulated Voltage Control
43Passenger Side Trailer Stoplamp,
Turn Signal
44 Spare
45 Front, Rear Washer
5-95
Page 386 of 436

Scheduled Maintenance
When the change engine oil light and/or CHANGE
ENGINE OIL SOON message displays, service is
required for the vehicle. Have the vehicle serviced as
soon as possible within the next 600 miles (1 000 km).
It is possible that, if driving under the best conditions,
the engine oil life system may not indicate that vehicle
service is necessary for over a year. However, the engine
oil and lter must be changed at least once a year and at
this time the system must be reset. Your dealer/retailer
has trained service technicians who will perform this
work using genuine parts and reset the system.
If the engine oil life system is ever reset accidentally,
service the vehicle within 3,000 miles (5 000 km) since
the last service. Remember to reset the oil life system
whenever the oil is changed. SeeEngine Oil Life System
on page 5-18for information on the Engine Oil Life
System and resetting the system.When the change engine oil light and/or CHANGE
ENGINE OIL SOON message appears, certain services,
checks, and inspections are required. Required services
are described in the following for “MaintenanceI” and
“MaintenanceII.” Generally, it is recommended that the
rst service be MaintenanceI, the second service be
MaintenanceII, and then alternate MaintenanceIand
MaintenanceIIthereafter. However, in some cases,
MaintenanceIImay be required more often.
MaintenanceI— Use MaintenanceIif the light/
message displays within 10 months since the vehicle
was purchased or MaintenanceIIwas performed.
MaintenanceII— Use MaintenanceIIif the previous
service performed was MaintenanceI. Always use
MaintenanceIIwhenever the light/message displays
10 months or more since the last service or if the light/
message has not come on at all for one year.
6-4
Page 395 of 436

Parking Brake and Automatic
Transmission P (Park) Mechanism
Check
{CAUTION:
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/retailer if service is required.
Underbody Flushing Service
At least every spring, use plain water to ush any
corrosive materials from the underbody. Take care to
clean thoroughly any areas where mud and other debris
can collect.
Recommended Fluids and
Lubricants
Fluids and lubricants identi ed below by name, part
number, or speci cation can be obtained from your
dealer/retailer.
Usage Fluid/Lubricant
Engine OilEngine oil which meets GM
Standard GM6094M and displays
the American Petroleum Institute
Certi ed for Gasoline Engines
starburst symbol. To determine the
proper viscosity for your vehicle’s
engine, seeEngine Oil on page 5-15.
Engine Coolant50/50 mixture of clean, drinkable
water and use only DEX-COOL
®
Coolant. SeeEngine Coolant on
page 5-23.
Hydraulic Brake
SystemDOT 3 Hydraulic Brake Fluid
(GM Part No. U.S. 12377967,
in Canada 89021320).
6-13
Page 426 of 436

Customer Assistance......................................... 7-6
Offices......................................................... 7-6
Text Telephone (TTY) Users........................... 7-6
Customer Information
Service Publications Ordering Information........7-16
Customer Satisfaction Procedure........................ 7-2
D
Damage Repair, Collision.................................7-12
Data Recorders
Event.........................................................7-18
Daytime Running Lamps (DRL).........................3-13
Defensive Driving............................................. 4-2
Delayed Locking.............................................2-10
DIC Compass.................................................3-47
Disc, MP3.............................................3-87, 3-92
Doing Your Own Service Work........................... 5-4
Dome Lamp ...................................................3-15
Door
Ajar Light...................................................3-40
Delayed Locking..........................................2-10
Locks........................................................2-10
Power Door Locks.......................................2-10
Programmable Automatic Door Locks.............2-11
Rear Door Security Locks.............................2-11Drive Systems
All-Wheel Drive...........................................5-41
Driver
Seat Height Adjuster...................................... 1-3
Driver Information Center (DIC).........................3-42
DIC Operation and Displays..........................3-42
DIC Vehicle Personalization..........................3-57
DIC Warnings and Messages........................3-49
Driving
At Night.....................................................4-13
Before a Long Trip......................................4-15
Defensive..................................................... 4-2
Drunk.......................................................... 4-3
Highway Hypnosis.......................................4-15
Hill and Mountain Roads..............................4-16
In Rain and on Wet Roads...........................4-14
Loss of Control...........................................4-12
Off-Road Recovery......................................4-11
Rocking Your Vehicle to Get it Out.................4-20
Winter........................................................4-17
Driving for Better Fuel Economy......................... 4-2
DVD
Rear Seat Entertainment System..................3-109
4