check engine CHEVROLET SUBURBAN 2009 Workshop Manual

(f)Lubricate all key lock cylinders, hood latch assembly,
secondary latch, pivots, spring anchor, release pawl,
rear compartment hinges, outer liftgate handle pivot
points, rear door detent link, roller mechanism, liftgate
handle pivot points, latch bolt, fuel door hinge, cargo
door hinge, locks, and folding seat hardware. More
frequent lubrication may be required when exposed to
a corrosive environment. Applying silicone grease
on weatherstrips with a clean cloth will make them
last longer, seal better, and not stick or squeak.
(g)Check vent hose at transfer case for kinks and
proper installation. Check to be sure vent hose is
unobstructed, clear, and free of debris. During any
maintenance, if a power washer is used to clean mud
and dirt from the underbody, care should be taken to
not directly spray the transfer case output seals. High
pressure water can overcome the seals and contaminate
the transfer case fluid. Contaminated fluid will decrease
the life of the transfer case and should be replaced.
(h)Change automatic transmission fluid and filter if the
vehicle is mainly driven under one or more of these
conditions:
In heavy city traffic where the outside temperature
regularly reaches 90°F (32°C) or higher.
In hilly or mountainous terrain.When doing frequent trailer towing.
Uses such as found in taxi, police, or delivery
service.
(i)Drain, flush, and refill cooling system. This service
can be complex; you should have your dealer/retailer
perform this service. See Engine Coolant on page 5-29
for what to use. Inspect hoses. Clean radiator,
condenser, pressure cap, and filler neck. Pressure
test the cooling system and pressure cap.
(j)A fluid loss in any vehicle system could indicate a
problem. Have the system inspected and repaired and
the fluid level checked. Add fluid if needed.
(k)Inspect system. Check all fuel and vapor lines
and hoses for proper hook-up, routing, and condition.
Check that the purge valve works properly, if equipped.
Replace as needed.
(l)If driving regularly under dusty conditions, inspect the
filter at each engine oil change.
(m)Visually inspect belt for fraying, excessive cracks, or
obvious damage. Replace belt if necessary.
(n)Severe Service: Change transfer case fluid if the
vehicle is mainly used for trailer towing or driven in city
traffic, wet environment, or high ambient temperatures.
6-9

Owner Checks and Services
These owner checks and services should be performed
at the intervals specied to help ensure vehicle safety,
dependability, and emission control performance. Your
dealer/retailer can assist with these checks and services.
Be sure any necessary repairs are completed at once.
Whenever any uids or lubricants are added to the
vehicle, make sure they are the proper ones, as shown
inRecommended Fluids and Lubricants on page 6-13.
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 the vehicle
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 5-29.
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 the vehicle’s tires and make sure they are
inated to the correct pressures. Do not forget to check
the spare tire, if the vehicle has one. SeeInflation - Tire
Pressure on page 5-70. If the vehicle has a spare tire,
check to make sure it is stored securely. SeeChanging
a Flat Tire on page 5-86.
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 5-76.
6-10

At Least Once a Year
Starter Switch Check
{CAUTION:
When you are doing this inspection, the vehicle
could move suddenly. If the vehicle moves, you or
others could be injured.
1. Before starting this check, be sure there is enough
room around the vehicle.
2. Firmly apply both the parking brake and the regular
brake. SeeParking Brake on page 2-45.
Do not use the accelerator pedal, and be ready to
turn off the engine immediately if it starts.
3. Try to start the engine in each gear. The vehicle
should start only in P (Park) or N (Neutral). If the
vehicle starts in any other position, contact
your dealer/retailer for service.
Automatic Transmission Shift Lock
Control System Check
{CAUTION:
When you are doing this inspection, the vehicle
could move suddenly. If the vehicle moves, you or
others could be injured.
1. Before starting this check, be sure there is enough
room around the vehicle. It should be parked on a
level surface.
2. Firmly apply the parking brake. SeeParking Brake
on page 2-45.
Be ready to apply the regular brake immediately if
the vehicle begins to move.
3. With the engine off, turn the ignition to ON/RUN,
but do not start the engine. Without applying the
regular brake, try to move the shift lever out
of P (Park) with normal effort. If the shift lever
moves out of P (Park), contact your dealer/retailer
for service.
6-11

Ignition Transmission Lock Check
While parked, and with the parking brake set, try to turn
the ignition to LOCK/OFF in each shift lever position.
The ignition should turn to LOCK/OFF only
when the shift lever is in P (Park).
The ignition key should come out only in
LOCK/OFF.
Contact your dealer/retailer if service is required.
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 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.
Hood and Liftgate Support Gas Strut
Service
Visually inspect gas strut for signs of wear, corrosion,
cracks, loss of lubricant, or other damage. Check the
hold open ability of gas strut. If necessary, replace with
genuine parts from your dealer/retailer.
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.
6-12

Current and Past Model Order Forms
Technical Service Bulletins and Manuals are available
for current and past model GM vehicles. To request
an order form, specify year and model name of
the vehicle.
ORDER TOLL FREE: 1-800-551-4123
Monday-Friday 8:00 AM - 6:00 PM
Eastern Time
For Credit Card Orders Only
(VISA-MasterCard-Discover), visit Helm, Inc.
on the World Wide Web at: helminc.com
Or you can write to:
Helm, Incorporated
P.O. Box 07130
Detroit, MI 48207
Prices are subject to change without notice and without
incurring obligation. Allow ample time for delivery.
Note to Canadian Customers: All listed prices are
quoted in U.S. funds. Canadian residents are to make
checks payable in U.S. funds.
Vehicle Data Recording and
Privacy
Your GM vehicle has a number of sophisticated
computers that record information about the vehicle’s
performance and how it is driven. For example,
your vehicle uses computer modules to monitor and
control engine and transmission performance, to monitor
the conditions for airbag deployment and deploy
airbags in a crash and, if so equipped, to provide
antilock braking to help the driver control the vehicle.
These modules may store data to help your
dealer/retailer technician service your vehicle. Some
modules may also store data about how you operate the
vehicle, such as rate of fuel consumption or average
speed. These modules may also retain the owner’s
personal preferences, such as radio pre-sets, seat
positions, and temperature settings.
7-16

A
Accessories and Modications............................ 5-3
Accessory Power............................................2-28
Accessory Power Outlets.................................3-20
Active Fuel Management™...............................2-31
Adding a Snow Plow or Similar Equipment.........4-39
Additional Required Services, Scheduled
Maintenance................................................. 6-6
Additives, Fuel................................................. 5-6
Add-On Electrical Equipment...........................5-114
Adjustable Throttle and Brake Pedal..................2-30
Air Cleaner/Filter, Engine.................................5-20
Air Conditioning..............................................3-22
Airbag
Adding Equipment to Your Airbag-Equipped
Vehicle...................................................1-96
Airbag System
How Does an Airbag Restrain?......................1-88
Passenger Sensing System...........................1-90
Servicing Your Airbag-Equipped Vehicle..........1-96
What Makes an Airbag Inate?......................1-87
What Will You See After an Airbag Inates?....1-88
When Should an Airbag Inate?....................1-86
Where Are the Airbags?...............................1-83Airbags
Passenger Status Indicator...........................3-38
Readiness Light..........................................3-37
System Check.............................................1-81
Antenna
Rear Side Window.....................................3-140
Antenna, XM™ Satellite Radio Antenna
System.....................................................3-140
Antilock Brake System (ABS)............................. 4-5
Warning Light.............................................3-41
Appearance Care
Aluminum or Chrome-Plated Wheels.............5-112
Care of Safety Belts...................................5-109
Chemical Paint Spotting..............................5-113
Cleaning Exterior Lamps/Lenses..................5-110
Fabric/Carpet............................................5-108
Finish Care...............................................5-110
Finish Damage
..........................................5-113
Instrument Panel, Vinyl, and Other Plastic
Surfaces...............................................5-109
Interior Cleaning........................................5-106
Leather....................................................5-108
Sheet Metal Damage..................................5-113
Tires........................................................5-112
Underbody Maintenance.............................5-113
1

C
Calibration.....................................................3-61
California
Perchlorate Materials Requirements................. 5-4
Warning....................................................... 5-4
California Fuel.................................................. 5-6
Camera, Rear Vision.......................................2-62
Canadian Owners............................................... iii
Capacities and Specications..........................5-122
Carbon Monoxide...................................2-13, 2-15
Engine Exhaust...........................................2-50
Winter Driving.............................................4-29
Care of
Safety Belts..............................................5-109
Cargo Cover..................................................2-80
CD, MP3 ............................................3-105, 3-109
Center Console Storage...................................2-79
Center Seat...................................................1-13
Chains, Tire...................................................5-84
Charging System Light....................................3-39
Check Engine Lamp........................................3-43
Checking Things Under the Hood......................5-12
Chemical Paint Spotting.................................5-113
Child Restraints
Infants and Young Children...........................1-57
Lower Anchors and Tethers for Children..........1-65
Older Children.............................................1-54Child Restraints (cont.)
Securing a Child Restraint in a Rear
Seat Position...........................................1-73
Securing a Child Restraint in the Center
Front Seat Position...................................1-77
Securing a Child Restraint in the Right
Front Seat Position...................................1-77
Systems.....................................................1-61
Where to Put the Restraint...........................1-63
Cigarette Lighter.............................................3-21
Circuit Breakers............................................5-115
Cleaning
Aluminum or Chrome-Plated Wheels.............5-112
Exterior Lamps/Lenses................................5-110
Fabric/Carpet............................................
5-108
Finish Care...............................................5-110
Instrument Panel, Vinyl, and Other Plastic
Surfaces...............................................5-109
Interior.....................................................5-106
Leather....................................................5-108
Tires........................................................5-112
Underbody Maintenance.............................5-113
Washing Your Vehicle.................................5-110
Weatherstrips............................................5-109
Windshield, Backglass, and Wiper Blades......5-111
3

Driving (cont.)
Defensive..................................................... 4-2
Drunk.......................................................... 4-3
Highway Hypnosis.......................................4-27
Hill and Mountain Roads..............................4-28
In Rain and on Wet Roads...........................4-26
Loss of Control...........................................4-11
Off-Road ....................................................4-13
Off-Road Recovery......................................4-11
Recovery Hooks..........................................4-32
Rocking Your Vehicle to Get it Out.................4-32
Winter........................................................4-29
Dual Automatic Climate Control System.............3-24
DVD
Rear Seat Entertainment System..................3-127
E
E85 Fuel......................................................... 5-7
EDR .............................................................7-16
Electrical Equipment
Add-On Equipment.....................................5-114
Electrical System
Center Instrument Panel Fuse Block.............5-118
Fuses and Circuit Breakers.........................5-115
Instrument Panel Fuse Block.......................5-116
Power Windows and Other Power Options....5-115
Underhood Fuse Block...............................5-119Electrical System (cont.)
Windshield Wiper Fuses.............................5-115
Electronic Immobilizer
PASS-Key
®III+...........................................2-24
Electronic Immobilizer Operation
PASS-Key
®III+...........................................2-24
Engine
Air Cleaner/Filter.........................................5-20
Check and Service Engine Soon Lamp...........3-43
Compartment Overview................................5-14
Coolant......................................................5-29
Coolant Heater............................................2-30
Coolant Temperature Gage...........................3-42
Cooling System...........................................5-28
Drive Belt Routing.......................................6-16
Exhaust.....................................................2-50
Fan Noise..................................................5-37
Oil .............................................................5-15
Overheated Protection Operating Mode...........5-37
Overheating................................................5-35
Starting......................................................2-28
Engine Oil
Life System................................................5-18
Entry Lighting.................................................3-19
Event Data Recorders.....................................7-17
Exit Lighting...................................................3-19
Extender, Safety Belt.......................................1-53
Exterior Lamps...............................................3-14
5

H
Halogen Bulbs................................................5-56
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-2
Headlamps
Aiming .......................................................5-53
Bulb Replacement.......................................5-56
Daytime Running Lamps (DRL).....................3-16
Exterior Lamps............................................3-14
Flash-to-Pass............................................... 3-8
High/Low Beam Changer................................ 3-8
On Reminder..............................................3-15
Heated Seats............................................1-7, 1-8
Heater...........................................................3-22
Engine Coolant...........................................2-30
Highbeam On Light.........................................3-49
Highway Hypnosis...........................................4-27
Hill and Mountain Roads..................................4-28
Hood
Checking Things Under................................5-12
Release.....................................................5-13
Horn ............................................................... 3-6
How to Wear Safety Belts Properly...................1-37
I
Ignition Positions.............................................2-26
Infants and Young Children, Restraints...............1-57
Ination - Tire Pressure...................................5-70
Instrument Panel
Brightness..................................................3-18
Cluster.......................................................3-35
Overview..................................................... 3-4
Introduction...................................................... 6-2
J
Jump Starting.................................................5-44
K
Keyless Entry System....................................... 2-4
Keys............................................................... 2-3
7

O
Object Detection, Side Blind Zone
Alert (SBZA)...............................................2-58
Odometer......................................................3-36
Trip ...........................................................3-36
Off-Road .......................................................4-13
Driving.......................................................4-13
Recovery....................................................4-11
Oil
Engine.......................................................5-15
Engine Oil Life System.................................5-18
Pressure Gage............................................3-46
Pressure Light.............................................3-48
Older Children, Restraints................................1-54
Online Owner Center........................................ 7-5
OnStar, Privacy..............................................7-18
OnStar
®System, see OnStar®Manual...............2-68
Operation, Universal Home Remote System........2-72
Outlet Adjustment............................................3-30
Outlets
Accessory Power.........................................3-20
Outside
Automatic Dimming Mirror.............................2-54
Convex Mirror.............................................2-55
Heated Mirrors............................................2-55
Manual Mirrors............................................2-52Outside (cont.)
Power Foldaway Mirrors...............................2-54
Power Mirrors.............................................2-53
Towing Mirrors............................................2-53
Overheated Engine Protection Operating Mode.....5-37
Owner Checks and Services.............................6-10
Owners, Canadian.............................................. iii
P
Paint, Damage..............................................5-113
Park
Shifting Into................................................2-47
Shifting Out of............................................2-49
Park Aid........................................................2-56
Park Tilt Mirrors..............................................2-55
Parking
Assist........................................................2-56
Brake........................................................2-45
Over Things That Burn.................................2-49
Passenger Airbag Status Indicator.....................3-38
Passenger Sensing System..............................1-90
Passing.........................................................4-11
PASS-Key
®III+ Electronic Immobilizer...............2-24
PASS-Key®III+ Electronic Immobilizer
Operation...................................................2-24
Perchlorate Materials Requirements, California...... 5-4
10