ECU HUMMER H3 2008 Repair Manual

5. Reinstall the center tire cover onto the spare or
at tire.
6. If your vehicle has a spare tire cover close the
cover and latch the side latch.
To store the jack tool bag and jack:
1. Return the tools to the jack tool bag.
2. Secure the tool bag to the jack by securely wrapping
the straps around the jack. Then, slide the straps
through the rings on the bag and secure.
3. Position the jack and jack tool bag in the
swing-gate.
When reinstalling the jack and jack tool bag, make
sure the jack base is securely seated behind
the tabs in the swing-gate.4. Reinstall the wing nut retainer to fasten the jack
and tool bag in the storage compartment.
Make sure that the wing nut passes through the tool
bag and the jack before you tighten it.
5. Turn the wing nut retainer clockwise to secure.
6. Reinstall the compartment cover by inserting
the locator tabs in the holes in the swing-gate.
Push the latches down to secure.
5-90

Owner Checks and Services
These owner checks and services should be performed
at the intervals specied to help ensure the safety,
dependability, and emission control performance of your
vehicle. Your dealer/retailer can assist you with these
checks and services.
Be sure any necessary repairs are completed at once.
Whenever any uids or lubricants are added to your
vehicle, make sure they are the proper ones, as shown
inRecommended Fluids and Lubricants on page 6-12.
At Each Fuel Fill
It is important to perform these underhood checks at
each fuel fill.
Engine Oil Level Check
Notice:It is important to check the engine oil
regularly and keep it at the proper level. Failure to
keep the engine oil at the proper level can cause
damage to the engine not covered by your warranty.
Check the engine oil level and add the proper oil if
necessary. SeeEngine Oil on page 5-15.
Engine Coolant Level Check
Check the engine coolant level and add DEX-COOL®
coolant mixture if necessary. SeeEngine Coolant
on page 5-27.
Windshield Washer Fluid Level Check
Check the windshield washer uid level in the windshield
washer uid reservoir and add the proper uid if
necessary.
At Least Once a Month
Tire Ination Check
Inspect your vehicle’s tires and make sure they are
inated to the correct pressures. Do not forget to check
the spare tire. SeeInflation - Tire Pressure on
page 5-62. Check to make sure the spare tire is stored
securely. SeeChanging a Flat Tire on page 5-79.
Tire Wear Inspection
Tire rotation may be required for high mileage highway
drivers prior to the Engine Oil Life System service
notication. Check the tires for wear and, if necessary,
rotate the tires. SeeTire Inspection and Rotation on
page 5-68.
6-9

Services Provided
The following services are provided in the U.S. and
Canada up to 5 years/100,000 miles (160 000 km),
whichever occurs rst, and, in Canada only, up
to a maximum coverage of $100. These services are
provided at a nominal charge if the vehicle is no longer
in the Powertrain warranty.
Fuel Delivery:Delivery of enough fuel for the
vehicle to get to the nearest service station
(approximately $5 in Canada). For safety reasons,
propane and other alternate fuels will not be
provided through this service.
Lock-out Service:Lock-out service will be covered
at no charge if you are unable to gain entry into
your vehicle. A remote unlock may be available if
you have an active OnStar
®subscription. To ensure
security, the driver must present personal
identication before lock-out service is provided. In
Canada, the vehicle registration is also required.
Emergency Tow from a Public Roadway or
Highway:Tow to the nearest dealership for
warranty service or in the event of a
vehicle-disabling crash.
Flat Tire Change:Installation of a spare tire in
good condition, when equipped and properly
inated, will be covered at no charge. The customer
is responsible for the repair or replacement of the
tire if not covered by a warrantable failure.
Jump Start:A battery jump start is covered at no
charge if the vehicle does not start.
Trip Routing Service:Upon request, Roadside
Assistance will send you detailed, computer
personalized maps, highlighting your choice of either
the most direct route or the most scenic route to your
destination, anywhere in North America, along with
helpful travel information pertaining to your trip.
Please allow three weeks before your planned
departure date. In Canada, trip routing requests will
be limited to six per calendar year.
Trip Interruption Benets and Assistance:If your
trip is interrupted due to a warranty failure, incidental
expenses may be reimbursed during the 5 years/
100,000 miles (160 000 km) warranty period. Items
covered are hotel, meals, and rental car.
HUMMER and General Motors of Canada Limited
reserve the right to limit services or reimbursement to an
owner or driver when, in their sole discretion, the claims
become excessive in frequency or type of occurrence.
7-7

OnStar®
If your vehicle has OnStar®and you subscribe to
the OnStar®services, please refer to the OnStar®Terms
and Conditions for information on data collection and
use. See alsoOnStar
®System on page 2-48in
this manual for more information.
Navigation System
If your vehicle has a navigation system, use of the
system may result in the storage of destinations,
addresses, telephone numbers, and other trip
information. Refer to the navigation system operating
manual for information on stored data and for deletion
instructions.
Radio Frequency
Identication (RFID)
RFID technology is used in some vehicles for functions
such as tire pressure monitoring and ignition system
security, as well as in connection with conveniences
such as key fobs for remote door locking/unlocking and
starting, and in-vehicle transmitters for garage door
openers. RFID technology in GM vehicles does not use
or record personal information or link with any other
GM system containing personal information.
7-18

Child Restraints
Child Restraint Systems...............................1-37
Infants and Young Children...........................1-33
Lower Anchors and Tethers for Children..........1-42
Older Children.............................................1-30
Securing a Child Restraint in a
Rear Outside Seat Position........................1-48
Securing a Child Restraint in the
Center Rear Seat Position.........................1-50
Securing a Child Restraint in the
Right Front Seat Position..........................1-51
Where to Put the Restraint...........................1-40
Cigarette Lighter.............................................3-22
Cleaning
Aluminum or Chrome-Plated Wheels..............5-97
Exterior Lamps/Lenses.................................5-95
Fabric/Carpet..............................................5-93
Finish Care.................................................5-96
Instrument Panel, Vinyl, and Other
Plastic Surfaces.......................................5-94
Interior.......................................................5-91
Leather......................................................5-93
Tires..........................................................5-98
Underbody Maintenance...............................5-98
Washing Your Vehicle...................................5-95
Weatherstrips..............................................5-94
Windshield, Backglass, and Wiper Blades.......5-97
Climate Control System...................................3-22
Outlet Adjustment........................................3-24Clock............................................................3-48
Clutch, Hydraulic.............................................5-26
Collision Damage Repair..................................7-11
Compass...............................................2-38, 2-41
Content Theft-Deterrent....................................2-14
Control of a Vehicle.......................................... 4-3
Convenience Net............................................2-59
Coolant
Engine Temperature Gage............................3-35
Heater, Engine............................................
2-22
Cooling System..............................................5-31
Cruise Control................................................3-11
Cruise Control Light........................................3-39
Cupholder(s)..................................................2-56
Customer Assistance Information
Courtesy Transportation.................................. 7-9
Customer Assistance for
Text Telephone (TTY) Users........................ 7-5
Customer Assistance Offices........................... 7-5
Customer Satisfaction Procedure..................... 7-2
GM Mobility Reimbursement Program............... 7-6
Reporting Safety Defects to General Motors.....7-15
Reporting Safety Defects to the
Canadian Government..............................7-15
Reporting Safety Defects to the
United States Government.........................7-14
Roadside Assistance Program......................... 7-6
Service Publications Ordering Information........7-15
3

D
Daytime Running Lamps..................................3-17
Defensive Driving............................................. 4-2
Doing Your Own Service Work........................... 5-4
Dome Lamp...................................................3-19
Dome Lamp Override......................................3-20
Door
Locks.......................................................... 2-7
Power Door Locks......................................... 2-8
Programmable Automatic Door Locks............... 2-8
Rear Door Security Locks............................... 2-9
Driver Information Center (DIC).........................3-40
DIC Operation and Displays..........................3-40
DIC Warnings and Messages........................3-43
Driving
At Night.....................................................4-32
Before a Long Trip......................................4-34
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Highway Hypnosis.......................................4-34
Hill and Mountain Roads..............................4-34
In Rain and on Wet Roads...........................4-33
Off-Road....................................................4-12
Recovery Loops..........................................4-40
Rocking Your Vehicle to Get it Out.................4-40
Winter........................................................4-35
E
EDR .............................................................7-16
Electrical System
Add-On Equipment.....................................5-101
Engine Compartment Fuse Block.................5-103
Fuses and Circuit Breakers.........................5-102
Power Windows and Other Power Options....5-102
Windshield Wiper Fuses.............................5-101
Engine
Air Cleaner/Filter.........................................5-20
Check and Service Engine Soon Light............3-36
Coolant......................................................5-27
Coolant Heater............................................2-22
Coolant Temperature Gage...........................3-35
Drive Belt Routing.......................................6-15
Engine Compartment Overview......................5-12
Exhaust.....................................................2-36
Fan Noise..................................................5-36
Oil .............................................................5-15
Oil Life System...........................................5-18
Overheating................................................5-29
Running While Parked..................................2-37
Starting......................................................2-20
Event Data Recorders.....................................7-17
Exit Lighting...................................................3-20
Extender, Safety Belt.......................................1-30
Exterior Lamps...............................................3-15
4

L
Labeling, Tire Sidewall.....................................5-55
Lamps
Dome........................................................3-19
Dome Lamp Override...................................3-20
Off-Road....................................................3-18
Reading.....................................................3-20
Lap-Shoulder Belt...........................................1-24
LATCH System
Child Restraints...........................................1-42
License Plate Lamps.......................................5-51
Light
Airbag Readiness........................................3-29
Antilock Brake System Warning.....................3-34
Brake System Warning.................................3-33
Charging System.........................................3-32
Cruise Control.............................................3-39
Highbeam On.............................................3-39
Malfunction Indicator....................................3-36
Oil Pressure...............................................3-38
Passenger Airbag Status Indicator..................3-30
Safety Belt Reminders..................................3-28
Security.....................................................3-39
StabiliTrak
®Not Ready.................................3-34Light (cont.)
Tire Pressure..............................................3-35
Traction Off................................................3-34
Up-Shift.....................................................3-32
Lighting
Exit...........................................................3-20
Lights
Exterior Lamps............................................3-15
Flash-to-Pass............................................... 3-9
High/Low Beam Changer................................ 3-9
On Reminder..............................................3-16
Loading Your Vehicle.......................................4-42
Locking Rear Axle............................................ 4-6
Lockout Protection............................................ 2-9
Locks
Door........................................................... 2-7
Lockout Protection......................................... 2-9
Power Door.................................................. 2-8
Programmable Automatic Door Locks............... 2-8
Rear Door Security Locks............................... 2-9
Loss of Control...............................................4-10
Luggage Carrier..............................................2-57
Lumbar
Power Controls............................................. 1-3
7

Privacy..........................................................7-16
Event Data Recorders..................................7-17
Navigation System.......................................7-18
OnStar.......................................................7-18
Radio Frequency Identication.......................7-18
Programmable Automatic Door Locks.................. 2-8
R
Radiator Pressure Cap....................................5-29
Radio Frequency Identication (RFID), Privacy....7-18
Radios..........................................................3-48
Radio(s)........................................................3-49
Radios
Navigation/Radio System, see Navigation
Manual...................................................3-61
Reception...................................................3-61
Setting the Time..........................................3-48
Theft-Deterrent............................................3-61
Reading Lamps..............................................3-20
Rear Axle......................................................5-45
Locking........................................................ 4-6
Rear Door Security Locks.................................. 2-9
Rear Storage Area..........................................2-59
Rear Vision Camera........................................2-44
Rear Windshield Washer/Wiper.........................3-11
Rearview Mirror, Automatic Dimming with
Compass and Temperature Display................2-41Rearview Mirror, Automatic Dimming with
OnStar
®, Compass and Temperature Display.....2-38
Reclining Seatbacks.......................................... 1-4
Recommended Fluids and Lubricants.................6-12
Recovery Loops..............................................4-40
Recreational Vehicle Towing.............................4-48
Remote Keyless Entry (RKE) System.................. 2-4
Remote Keyless Entry (RKE) System, Operation . . . 2-5
Removing the Flat Tire and Installing the
Spare Tire..................................................5-83
Removing the Spare Tire and Tools...................5-81
Replacement Bulbs.........................................5-52
Replacement Parts, Maintenance......................6-14
Reporting Safety Defects
Canadian Government..................................7-15
General Motors...........................................7-15
United States Government............................7-14
Restraint System Check
Checking the Restraint Systems....................1-69
Replacing Restraint System Parts
After a Crash..........................................1-70
Retained Accessory Power (RAP)......................2-20
Roadside
Assistance Program....................................... 7-6
Rocking Your Vehicle to Get it Out....................4-40
Routing, Engine Drive Belt...............................6-15
Running the Engine While Parked.....................2-37
10

S
Safety Belt
Reminder Light............................................3-28
Safety Belts
Care of......................................................5-94
How to Wear Safety Belts Properly................1-16
Lap-Shoulder Belt........................................1-24
Safety Belt Extender....................................1-30
Safety Belt Use During Pregnancy.................1-29
Safety Belts Are for Everyone.......................1-10
Safety Warnings and Symbols.............................. iii
Scheduled Maintenance..................................... 6-4
Seats
60/40 Split Bench Seat.................................. 1-8
Head Restraints............................................ 1-7
Heated Seats............................................... 1-4
Power Lumbar.............................................. 1-3
Power Seats................................................. 1-3
Reclining Seatbacks...................................... 1-4
Securing a Child Restraint
Center Rear Seat Position............................1-50
Rear Outside Seat Position...........................1-48
Right Front Seat Position..............................1-51
Security Light.................................................3-39Service........................................................... 5-3
Accessories and Modications......................... 5-3
Adding Equipment to the Outside of
Your Vehicle.............................................. 5-5
California Pershlorate Materials Requirements.... 5-4
California Proposition 65 Warning.................... 5-4
Doing Your Own Work................................... 5-4
Engine Soon Light.......................................3-36
Publications Ordering Information...................7-15
Service, Scheduling Appointments....................... 7-9
Servicing Your Airbag-Equipped Vehicle..............1-67
Sheet Metal Damage.......................................5-98
Shifting Into Park (P).......................................2-33
Shifting Out of Park (P)...................................2-35
Side Steps.....................................................4-31
Signals, Turn and Lane-Change.......................... 3-8
Spare Tire.....................................................5-91
Installing....................................................5-83
Removing...................................................5-81
Storing
.......................................................5-89
Specications, Capacities...............................5-107
Speedometer..................................................3-27
Split Bench Seat (60/40).................................... 1-8
StabiliTrak
®System.......................................... 4-7
StabiliTrak®Not Ready Light.............................3-34
11