2003 CHEVROLET SUBURBAN ECU

4. Repeat this procedure at least two times. If the
spare tire lowers to the ground, continue with
Step 5 of ªRemoving the Spare Tire and Toolsº
earlier in this section.
5. Turn the wrench counterclockwise until
approximately six inches (15 cm) of cable is
exposed.
6. Stand the wheel blocks
on their shortest ends,
with the backs
facing each other.
7. Place the bottom edge of the jack on the wheel
blocks, separating them so that the jack is
balanced securely.
5-96

At Least Twice a Year
Restraint System Check
Make sure the safety belt reminder light and all your
belts, buckles, latch plates, retractors and anchorages
are working properly. Look for any other loose or
damaged safety belt system parts. If you see anything
that might keep a safety belt system from doing its
job, have it repaired. Have any torn or frayed safety belts
replaced.
Also look for any opened or broken air bag coverings,
and have them repaired or replaced. (The air bag
system does not need regular maintenance.)
Wiper Blade Check
Inspect wiper blades for wear or cracking. Replace
blade inserts that appear worn or damaged or that
streak or miss areas of the windshield. Also see
Cleaning the Outside of Your Vehicle on page 5-102.
Spare Tire Check
At least twice a year, after the monthly in¯ation check of
the spare tire determines that the spare is in¯ated to
the correct tire in¯ation pressure, make sure that
the spare tire is stored securely. Push, pull, and then try
to rotate or turn the tire. If it moves, use the wheel
wrench/ratchet to tighten the cable. See
Changing a Flat
Tire on page 5-77.
Weatherstrip Lubrication
Silicone grease on weatherstrips will make them last
longer, seal better, and not stick or squeak. Apply
silicone grease with a clean cloth. During very cold,
damp weather more frequent application may be
required. See
Part D: Recommended Fluids and
Lubricants on page 6-18.
Automatic Transmission Check
Check the transmission ¯uid level; add if needed. SeeAutomatic Transmission Fluid on page 5-26. A ¯uid loss
may indicate a problem. Check the system and repair
if needed.
6-12

Chemical Paint Spotting.................................5-105
Child Restraints..............................................1-53
Child Restraint Systems...............................1-53
Infants and Young Children...........................1-49
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-62
Older Children.............................................1-47
Securing a Child Restraint Designed for the
LATCH System........................................1-64
Securing a Child Restraint in a Center
Rear Seat Position...................................1-66
Securing a Child Restraint in a Rear Outside
Seat Position...........................................1-64
Securing a Child Restraint in the Center
Front Seat Position...................................1-68
Securing a Child Restraint in the Right
Front Seat Position...................................1-69
Top Strap Anchor Location............................1-59
Top Strap...................................................1-57
Where to Put the Restraint...........................1-56
Chime Level Adjustment.................................3-129
Cigarette Lighter.............................................3-20
Cleaning Aluminum or Chrome-Plated Wheels . . . 5-104
Cleaning Exterior Lamps/Lenses......................5-103
Cleaning Fabric/Carpet....................................5-99
Cleaning Glass Surfaces................................5-101
Cleaning Interior Plastic Components...............5-101Cleaning Leather...........................................5-101
Cleaning the Mirror.........................................2-48
Cleaning the Top of the Instrument Panel.........5-101
Cleaning the Windshield, Backglass
and Wiper Blades......................................5-103
Cleaning Tires..............................................5-104
Cleaning Vinyl..............................................5-101
Cleaning........................................................5-99
Inside of Your Vehicle..................................5-99
Outside of Your Vehicle..............................5-102
Underbody Maintenance.............................5-105
Video Screen............................................3-129
Weatherstrips............................................5-102
Climate Control System...................................3-20
Dual Automatic............................................3-25
Dual..........................................................3-21
Rear Air Conditioning and Heating System,
Electronic................................................3-34
Rear Air Conditioning and Heating System......3-32
Rear Air Conditioning System........................3-31
Compact Disc Messages..............3-86, 3-100, 3-113
Compass Calibration...............................2-48, 2-50
Compass Operation.........................................2-49
Compass Variance..................................2-47, 2-50
Content Theft-Deferrent....................................2-18
Control of a Vehicle.......................................... 4-6
Convenience Net............................................2-64
4

Coolant.........................................................3-45
Engine Temperature Gage............................3-45
Heater, Engine............................................2-24
Surge Tank Pressure Cap.............................5-32
Cooling System..............................................5-36
Cruise Control Light........................................3-51
Cruise Control................................................3-10
Cupholder(s)..................................................2-61
Current and Past Model Order Forms................7-12
Customer Assistance Information........................ 7-8
Courtesy Transportation.................................. 7-8
Customer Assistance for Text Telephone (TTY)
Users....................................................... 7-4
Customer Assistance Offices........................... 7-4
Customer Satisfaction Procedure..................... 7-2
GM Mobility Program for Persons with
Disabilities................................................ 7-6
Reporting Safety Defects to General Motors....7-10
Reporting Safety Defects to the Canadian
Government............................................7-10
Reporting Safety Defects to the United States
Government............................................7-10
Roadside Assistance Program......................... 7-6
Service Publications Ordering Information........7-11D
Daytime Running Lamps..................................3-15
Defensive Driving............................................. 4-2
Defogging and Defrosting.........................3-23, 3-29
Delayed Locking.............................................2-10
Dinghy Towing................................................4-60
Doing Your Own Service Work........................... 5-3
Dolly Towing..................................................4-61
Dome Lamps.................................................3-18
Door.............................................................2-10
Delayed Locking..........................................2-10
Locks.......................................................... 2-8
Power Door Locks......................................... 2-9
Programmable Automatic Door Locks.............2-10
Rear Door Security Locks.............................2-13
DRIVER DOOR AJAR.....................................3-66
Driver Information Center (DIC).........................3-53
DIC Operation and Displays..........................3-54
DIC Warnings and Messages........................3-64
Driver............................................................1-30
Position, Safety Belt.....................................1-30
Driving Across an Incline..................................4-36
Driving Downhill..............................................4-34
5

K
Key Lock Cylinders Service..............................6-13
KEYFOB X BATTERY LOW.............................3-68
Keyless Entry System....................................... 2-4
Keys............................................................... 2-3
L
Lamps On Reminder.......................................3-15
Lamps...........................................................3-14
Exterior......................................................3-14
Interior.......................................................3-17
Lap Belt........................................................1-39
Lap-Shoulder Belt...........................................1-30
LATCH System...............................................1-62
Child Restraints...........................................1-62
Securing a Child Restraint Designed for the
LATCH System........................................1-64
Leaving Your Vehicle With the Engine Running . . . 2-40
LEFT REAR DOOR AJAR................................3-67
Level Control..................................................4-64
Liftgate Glass and Liftgate................................2-14
Liftgate..........................................................2-14
Lighted Visor Vanity Mirror...............................2-18
Light.............................................................3-39
Air Bag Readiness.......................................3-39
Anti-Lock Brake System Warning...................3-44
Battery Warning..........................................3-41Light (cont.)
Brake System Warning.................................3-42
Cruise Control.............................................3-51
Four-Wheel-Drive.........................................3-51
Low Fuel Warning.......................................3-53
Malfunction Indicator....................................3-47
Passenger Air Bag Status Indicator................3-39
Safety Belt Reminder...................................3-38
Tow/Haul Mode...........................................3-52
Traction Off................................................3-44
Listening to a DVD..............................3-100, 3-114
Loading Your Vehicle for Off-Road Driving..........4-26
Loading Your Vehicle.......................................4-62
Locking Rear Axle...........................................4-12
Lockout Protection..........................................2-13
Lock-Out Switch.............................................2-18
Locks............................................................2-10
Delayed Locking..........................................2-10
Door........................................................... 2-8
Lockout Protection.......................................2-13
Power Door.................................................. 2-9
Programmable Automatic Door Locks.............2-10
Rear Door Security Locks.............................2-13
Loss of Control...............................................4-21
LOW COOLANT LEVEL..................................3-67
Low Fuel Warning Light...................................3-53
Luggage Carrier..............................................2-62
Lumbar........................................................... 1-5
Power Controls............................................. 1-5
10

Radios (cont.)
Radio with Six-Disc CD..............................3-101
Rear Seat Audio........................................3-124
Setting the Time for Radios with Radio Data
Systems (RDS)........................................3-73
Setting the Time for Radios without Radio
Data Systems (RDS)................................3-72
Theft-Deterrent..........................................3-125
Understanding Reception............................3-127
RDS Messages.............................3-81, 3-92, 3-105
REAR ACCESS OPEN....................................3-67
Rear Air Conditioning and Heating System and
Electronic Climate Controls...........................3-34
Rear Air Conditioning and Heating System.........3-32
Rear Air Conditioning System...........................3-31
Rear Axle......................................................5-56
Locking......................................................4-12
Rear Door Security Locks................................2-13
Rear Safety Belt Comfort Guides......................1-44
Rear Seat Audio Controls...............................3-124
Rear Seat Audio (RSA)..................................3-124
Rear Seat Entertainment System.....................3-114
Rear Seat Operation......................................... 1-9
Rear Seat Outside Passenger Positions.............1-40
Rear Seat Passengers, Safety Belts..................1-40
Rear Storage Area..........................................2-63
Rear Window Defogger............................3-23, 3-30Rearview Mirror, Automatic Dimming with
Compass and Temperature Display................2-49
Rearview Mirror, Automatic Dimming with
OnStar
ž, Compass and Temperature Display . . . 2-45
Rearview Mirrors.............................................2-45
Reclining Seatbacks.......................................... 1-6
Reclining the Seatbacks...................................1-21
Recreational Vehicle Towing.............................4-59
REDUCED ENGINE POWER...........................3-68
Remote Alarm.................................................. 2-6
Remote Control.............................................3-117
Remote Keyless Entry System, Operation............ 2-5
Remote Keyless Entry System............................ 2-4
Removing the 50/50 Split Bench Seat................1-14
Removing the Bench Seat................................1-19
Removing the Flat Tire and Installing
the Spare Tire.............................................5-82
Removing the Spare Tire and Tools...................5-78
REPLACE LIFTGATE FUSE.............................3-68
Replacement Bulbs.........................................5-66
Replacing Brake System Parts..........................5-48
Replacing Restraint System Parts After a Crash . . 1-89
Replacing the 50/50 Split Bench Seat................1-15
Replacing the Bench Seat................................1-20
Reporting Safety Defects.................................7-10
Canadian Government..................................7-10
General Motors...........................................7-10
United States Government............................7-10
14

Second Row..................................................1-67
Secondary Latch System.................................5-95
Securing a Child Restraint................................1-68
Center Front Seat Position............................1-68
Center Rear Seat Position............................1-66
Designed for the LATCH System...................1-64
Rear Outside Seat Position...........................1-64
Right Front Seat Position..............................1-69
Select Button.................................................3-64
SERVICE 4 WHEEL STEER.............................3-68
SERVICE 4WD...............................................3-69
SERVICE AIRBAG..........................................3-68
SERVICE BRAKE SYSTEM.............................3-68
Service Bulletins.............................................7-11
Service Manuals.............................................7-11
SERVICE RIDE CONTROL..............................3-69
SERVICE STABILITY......................................3-69
SERVICE TIRE MONITOR...............................3-69
Service........................................................... 5-3
Adding Equipment to the Outside of Your
Vehicle..................................................... 5-4
Doing Your Own Work................................... 5-3
Engine Soon Light.......................................3-47
Publications Ordering Information...................7-11
Setting Preset PTYs (RDS Only).....3-81, 3-91, 3-105
Setting Preset Stations..........3-74, 3-78, 3-89, 3-103Setting the Time.............................................3-73
Radios with Radio Data Systems (RDS).........3-73
Radios without Radio Data Systems (RDS).....3-72
Setting the Tone
(Bass/Treble)....................3-74, 3-79, 3-90, 3-103
Sheet Metal Damage.....................................5-104
Shifting Into Park (P).......................................2-39
Shifting Out of Park (P)...................................2-42
Side Impact Air Bags.......................................1-79
Skidding........................................................4-22
Some Other Rainy Weather Tips.......................4-44
Spare Tire Check............................................6-12
Spare Tire.....................................................5-98
Special Fabric Cleaning Problems....................5-100
Speci®cations, Capacities...............................5-118
Speedometer..................................................3-38
Split Bench Seat (50/50)..................................1-12
Split Bench Seat (60/40).................................... 1-9
Stabilitrak
ž, All-Wheel Drive..............................2-34
StabilitrakžSystem.........................................4-12
STABILITY SYS ACTIVE..................................3-70
STABILITY SYS DISABLED..............................3-70
STABILITY SYS READY..................................3-70
Stalling on an Incline.......................................4-37
Starter Switch Check.......................................6-13
Starting Your Engine.......................................2-23
16