ECU GMC ENVOY 2009 Repair Manual

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 2-43in 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

Checking Things Under the Hood......................5-10
Chemical Paint Spotting.................................5-110
Child Restraints
Child Restraint Systems...............................1-39
Infants and Young Children...........................1-35
Lower Anchors and Tethers for Children..........1-43
Older Children.............................................1-32
Securing a Child Restraint in a
Rear Outside Seat Position........................1-49
Securing a Child Restraint in the
Center Rear Seat Position.........................1-51
Securing a Child Restraint in the
Right Front Seat Position..........................1-52
Where to Put the Restraint...........................1-42
Chime Level Adjustment.................................3-112
Cigarette Lighter.............................................3-19
Cleaning
Aluminum Wheels......................................5-109
Exterior Lamps/Lenses................................5-107
Fabric/Carpet............................................5-104
Finish Care...............................................5-108
Instrument Panel, Vinyl, and Other
Plastic Surfaces.....................................5-106
Interior.....................................................5-103
Leather....................................................5-105
Tires........................................................5-109
Underbody Maintenance.............................5-110
Washing Your Vehicle.................................5-107
Weatherstrips............................................5-106
Windshield, Backglass, and Wiper Blades......5-108Climate Control System
Dual ..........................................................3-19
Dual Automatic............................................3-22
Outlet Adjustment........................................3-26
Rear ..........................................................3-26
Clock, Setting.................................................3-63
Collision Damage Repair..................................7-11
Compass.......................................................2-40
Compressor Kit
Storing.......................................................
5-87
Compressor Kit, Tire Sealant............................5-77
Content Theft-Deterrent....................................2-16
Control of a Vehicle.......................................... 4-3
Convenience Net............................................2-54
Coolant
Engine.......................................................5-25
Engine Temperature Gage............................3-37
Cooling System..............................................5-24
Cruise Control................................................3-10
Cruise Control Light........................................3-43
Customer Assistance Information
Courtesy Transportation................................7-10
Customer Assistance for Text
Telephone (TTY) Users............................... 7-6
Customer Assistance Offices........................... 7-6
Customer Satisfaction Procedure..................... 7-2
GM Mobility Reimbursement Program............... 7-7
Reporting Safety Defects to General Motors.......7-15
3

Customer Assistance Information (cont.)
Reporting Safety Defects to the
Canadian Government..............................7-15
Reporting Safety Defects to the
United States Government.........................7-14
Roadside Assistance Program......................... 7-7
Service Publications Ordering Information........7-15
D
Daytime Running Lamp...................................3-14
Defensive Driving............................................. 4-2
Delayed Locking............................................... 2-8
Disc, MP3......................................................3-80
Doing Your Own Service Work........................... 5-4
Dome Lamp Override......................................3-16
Dome Lamps .................................................3-16
Door
Delayed Locking........................................... 2-8
Locks.......................................................... 2-7
Power Door Locks......................................... 2-8
Programmable Automatic Door Locks............... 2-9
Rear Door Security Locks.............................2-11
Driver Information Center (DIC).........................3-47
DIC Operation and Displays..........................3-48
DIC Vehicle Customization............................3-56
DIC Warnings and Messages........................3-51Driving
At Night.....................................................4-25
Before a Long Trip......................................4-26
Defensive..................................................... 4-2
Drunken....................................................... 4-3
Highway Hypnosis.......................................4-26
Hill and Mountain Roads..............................4-27
In Rain and on Wet Roads...........................4-25
Off-Road ....................................................4-13
Rocking Your Vehicle to Get it Out.................4-31
Winter........................................................4-28
Driving for Better Fuel Economy......................... 4-2
Dual Automatic Climate Control System.............3-22
Dual Climate Control System............................3-19
DVD
Rear Seat Entertainment System...................3-96
E
EDR .............................................................7-16
Electrical System
Add-On Equipment.....................................5-112
Engine Compartment Fuse Block.................5-113
Fuses and Circuit Breakers.........................5-113
Headlamps...............................................5-112
Power Windows and Other Power Options.......5-112
Rear Underseat Fuse Block.........................5-116
Windshield Wiper Fuses.............................5-112
4

I
Ignition Positions.............................................2-21
Infants and Young Children, Restraints...............1-35
Ination - Tire Pressure...................................5-60
Inator Kit, Tire...............................................5-77
Instrument Panel
Brightness..................................................3-16
Cluster.......................................................3-28
Overview..................................................... 3-4
J
Jump Starting.................................................5-39
K
Keyless Entry System....................................... 2-4
Keys............................................................... 2-3
L
Labeling, Tire Sidewall.....................................5-54
Lamp
Malfunction Indicator....................................3-38Lamps
Dome ........................................................3-16
Dome Lamp Override...................................3-16
Reading.....................................................3-17
Lap-Shoulder Belt...........................................1-27
LATCH System for Child Restraints...................1-43
License Plate Lamps.......................................5-49
Liftgate/Liftglass..............................................2-12
Liftglass/Liftgate..............................................2-12
Light
Airbag Readiness........................................3-31
Antilock Brake System (ABS) Warning............3-36
Brake System Warning.................................3-35
Change Engine Oil......................................3-43
Charging System.........................................3-33
Check Gages Warning.................................3-45
Check Gas Cap..........................................3-47
Cruise Control.............................................3-43
Gate Ajar...................................................3-45
Highbeam On.............................................3-44
Low Fuel Warning.......................................3-47
Passenger Airbag Status Indicator..................3-32
Reduced Engine Power................................3-44
Safety Belt Reminders..................................3-30
Security.....................................................3-43
Service Four-Wheel-Drive Warning Light.........3-44
StabiliTrak Service.......................................3-36
StabiliTrak
®Indicator....................................3-37
Tire Pressure..............................................3-38
7

Lighting
Entry.........................................................3-16
Exit ...........................................................3-17
Lights............................................................3-13
Flash-to-Pass............................................... 3-8
High/Low Beam Changer................................ 3-8
On Reminder..............................................3-14
Loading Your Vehicle.......................................4-31
Locking Rear Axle...........................................4-10
Lockout Protection..........................................2-11
Locks
Delayed Locking........................................... 2-8
Door ........................................................... 2-7
Lockout Protection.......................................2-11
Power Door .................................................. 2-8
Programmable Automatic Door Locks............... 2-9
Rear Door Security Locks.............................2-11
Loss of Control...............................................4-12
Low Fuel Warning Light...................................3-47
Lower Anchors and Tethers for Children.............1-43
Luggage Carrier..............................................2-52
Lumbar
Manual Controls............................................ 1-3
Power Controls............................................. 1-4M
Maintenance Schedule
Additional Required Services........................... 6-6
At Each Fuel Fill........................................... 6-9
At Least Once a Month.................................. 6-9
At Least Once a Year..................................6-10
Introduction.................................................. 6-2
Maintenance Footnotes.................................. 6-7
Maintenance Record....................................6-16
Maintenance Replacement Parts....................6-14
Maintenance Requirements............................. 6-2
Owner Checks and Services........................... 6-8
Recommended Fluids and Lubricants.............6-12
Scheduled Maintenance................................. 6-4
Using.......................................................... 6-2
Your Vehicle and the Environment................... 6-2
Malfunction Indicator Lamp...............................3-38
Manual Lumbar Controls.................................... 1-3
Manual Seats................................................... 1-2
Memory Seat................................................... 1-5
Message
DIC Warnings and Messages........................3-51
Mirrors
Automatic Dimming Rearview........................2-39
Manual Rearview Mirror................................2-39
Outside Convex Mirror.................................2-42
8

Perchlorate Materials Requirements,
California..................................................... 5-4
Phone
Bluetooth
®..................................................3-86
Power
Door Locks.................................................. 2-8
Electrical System.......................................5-112
Lumbar Controls........................................... 1-4
Reduced Engine Light..................................3-44
Retained Accessory.....................................2-22
Seat ............................................................ 1-3
Steering Fluid.............................................5-33
Windows....................................................2-14
Privacy..........................................................7-16
Event Data Recorders..................................7-17
Navigation System.......................................7-18
OnStar .......................................................7-18
Radio Frequency Identication.......................7-18
Programmable Automatic Door Locks.................. 2-9
R
Radio Frequency Identication (RFID),
Privacy......................................................7-18
Radio(s)........................................................3-64
Radios
Navigation/Radio System,
see Navigation Manual..............................3-86
Rear Seat Audio........................................3-109Radios (cont.)
Reception.................................................3-111
Setting the Clock.........................................3-63
Theft-Deterrent..........................................3-110
Reading Lamps..............................................3-17
Rear Axle......................................................5-43
Locking......................................................4-10
Rear Climate Control System............................3-26
Rear Door Security Locks................................2-11
Rear Floor Storage Cover................................2-53
Rear Seat Audio (RSA)..................................3-109
Rear Seat Entertainment System.......................3-96
Rear Seat Operation.......................................1-11
Rear Windshield Washer/Wiper........................... 3-9
Rearview Mirror, Automatic Dimming..................2-39
Rearview Mirrors.............................................2-39
Reclining Seatbacks.......................................... 1-7
Recommended Fluids and Lubricants.................6-12
Recreational Vehicle Towing.............................4-38
Reduced Engine Power Light............................3-44
Remote Keyless Entry (RKE) System.................. 2-4
Remote Keyless Entry (RKE) System,
Operation..................................................... 2-5
Removing the Flat Tire and Installing the
Spare Tire..................................................5-92
Removing the Spare Tire and Tools...................5-89
Replacement Bulbs.........................................5-49
Replacement Parts, Maintenance......................6-14
10

Reporting Safety Defects
Canadian Government..................................7-15
General Motors...........................................7-15
United States Government............................7-14
Restraint System Check
Checking the Restraint Systems....................1-70
Replacing Restraint System Parts
After a Crash..........................................1-71
Retained Accessory Power...............................2-22
Roadside
Assistance Program....................................... 7-7
Rocking Your Vehicle to Get it Out....................4-31
Routing, Engine Drive Belt...............................6-15
Running the Vehicle While Parked.....................2-38
S
Safety Belt Reminders.....................................3-30
Safety Belts
Care of ....................................................5-106
How to Wear Safety Belts Properly................1-18
Lap-Shoulder Belt........................................1-27
Safety Belt Extender....................................1-32
Safety Belt Use During Pregnancy.................1-31
Safety Belts Are for Everyone.......................1-13
Safety Warnings and Symbols.............................. iii
Scheduled Maintenance..................................... 6-4Seats
Head Restraints..........................................1-10
Heated Seats............................................... 1-4
Manual Lumbar............................................. 1-3
Memory ....................................................... 1-5
Power Lumbar .............................................. 1-4
Power Seats................................................. 1-3
Rear Seat Operation....................................1-11
Reclining Seatbacks...................................... 1-7
Secondary Latch System.................................5-97
Securing a Child Restraint
Center Rear Seat Position............................1-51
Rear Outside Seat Position...........................1-49
Right Front Seat Position..............................1-52
Security Light.................................................3-43
Service........................................................... 5-3
Accessories and Modications......................... 5-3
Adding Equipment to the Outside of the
Vehicle..................................................... 5-5
California Perchlorate Materials Requirements..... 5-4
California Proposition 65 Warning.................... 5-4
Doing Your Own Work................................... 5-4
Engine Soon Lamp......................................3-38
Four-Wheel-Drive Warning Light.....................3-44
Publications Ordering Information...................7-15
Service, Scheduling Appointments.....................7-10
Servicing Your Airbag-Equipped Vehicle..............1-68
Setting the Clock............................................3-63
11