check oil GMC ENVOY DENALI 2009 Owner's Manual

Scheduled Maintenance
Service MaintenanceIMaintenanceII
Change engine oil and lter. SeeEngine Oil on page 5-15. Reset oil life system.
SeeEngine Oil Life System on page 5-18.An Emission Control Service.••
Visually check for any leaks or damage.See footnote (j).••
Inspect engine air cleaner lter. If necessary, replace lter. SeeEngine Air
Cleaner/Filter on page 5-20.See footnote (k).•
Rotate tires and check ination pressures and wear. SeeTire Inspection and
Rotation on page 5-68and “Tire Wear Inspection” inAt Least Once a Month on
page 6-9.••
Inspect brake system.See footnote (a).••
Check engine coolant and windshield washer uid levels and add uid as
needed.••
Perform any needed additional services. See “Additional Required Services” in
this section.••
Inspect suspension and steering components.See footnote (b).•
Inspect engine cooling system.See footnote (c).•
Inspect wiper blades.See footnote (d).•
Inspect restraint system components.See footnote (e).•
Lubricate body components.See footnote (f).•
Check transmission uid level and add uid as needed.See footnote (g).•
6-5

(e)Make sure the safety belt reminder light and safety
belt assemblies 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 see Checking the Restraint Systems
on page 1-70.
(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)Inspect hoses for cracks, chafing, leaks, kinks, and
proper installation.
(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 5-25 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)If driving regularly under dusty conditions, inspect
the filter at each engine oil change.
(l)Visually inspect belt for fraying, excessive cracks, or
obvious damage. Replace belt if necessary.
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 6-12.
6-8

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 5-25.
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. See
Inflation - Tire Pressure on page 5-60. If the vehicle
has a spare tire, check to make sure it is stored
securely. SeeChanging a Flat Tire on page 5-88.
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

Electronic Immobilizer
PASS-Key®III+...........................................2-18
Electronic Immobilizer Operation
PASS-Key
®III+...........................................2-18
Electronically Controlled Air Suspension
System......................................................4-45
Engine
Air Cleaner/Filter.........................................5-20
Change Engine Oil Light...............................3-43
Check and Service Engine Soon Lamp...........3-38
Coolant......................................................5-25
Coolant Heater............................................2-24
Coolant Temperature Gage...........................3-37
Drive Belt Routing.......................................6-15
Engine Compartment Overview......................5-12
Exhaust.....................................................2-37
Fan Noise..................................................5-32
Oil .............................................................5-15
Oil Life System...........................................5-18
Overheating................................................5-30
Reduced Power Light...................................3-44
Starting......................................................2-22
Entry Lighting.................................................3-16
Event Data Recorders.....................................7-17
Exit Lighting...................................................3-17
Extender, Safety Belt.......................................1-32
F
Filter
Engine Air Cleaner......................................5-20
Finish Damage.............................................5-110
Fixed Mast Antenna.......................................3-112
Flashers, Hazard Warning.................................. 3-6
Flash-to-Pass................................................... 3-8
Flat Tire........................................................5-76
Flat Tire, Changing.........................................5-88
Flat Tire, Storing...........................................5-100
Fluid
Automatic Transmission................................5-21
Power Steering...........................................5-33
Windshield Washer......................................5-34
Fog Lamp
Fog ...........................................................3-15
Four-Wheel Drive....................................2-28, 5-44
Front Axle......................................................5-44
Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-6
Check Gas Cap Light...................................3-47
Driving for Better Economy............................. 4-2
Filling a Portable Fuel Container....................5-10
Filling the Tank............................................. 5-8
Fuels in Foreign Countries.............................. 5-7
5

Fuel (cont.)
Gage .........................................................3-46
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-6
Low Warning Light.......................................3-47
Fuses
Engine Compartment Fuse Block.................5-113
Fuses and Circuit Breakers.........................5-113
Rear Underseat Fuse Block.........................5-116
Windshield Wiper.......................................5-112
G
Gage
Check Gages Warning Light..........................3-45
Engine Coolant Temperature.........................3-37
Fuel..........................................................3-46
Oil Pressure...............................................3-42
Speedometer..............................................3-29
Tachometer.................................................3-29
Voltmeter Gage...........................................3-34
Garage Door Opener.......................................2-46
Gasoline
Octane........................................................ 5-5
Specications............................................... 5-6
Gate Ajar Light...............................................3-45
Glove Box.....................................................2-51
GM Mobility Reimbursement Program.................. 7-7
H
Hazard Warning Flashers................................... 3-6
Head Restraints..............................................1-10
Headlamp
Aiming .......................................................5-45
Headlamps............................................3-13, 5-46
Bulb Replacement.......................................5-46
Daytime Running Lamp................................3-14
Electrical System.......................................5-112
Flash-to-Pass............................................... 3-8
Front Turn Signal, Sidemarker and
Parking Lamps.........................................5-47
Halogen Bulbs............................................5-46
High/Low Beam Changer................................ 3-8
On Reminder..............................................3-14
Washer......................................................3-10
Heated Seats................................................... 1-4
Heater...........................................................3-19
Engine Coolant...........................................2-24
Heater...........................................................3-22
Highbeam On Light.........................................3-44
High-Speed Operation, Tires.............................5-62
Highway Hypnosis...........................................4-26
Hill and Mountain Roads..................................4-27
Hood
Checking Things Under................................5-10
Release.....................................................5-11
Horn ............................................................... 3-6
How to Wear Safety Belts Properly...................1-18
6

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

Mirrors (cont.)
Outside Heated Mirrors................................2-42
Outside Manual Mirrors................................2-41
Outside Power Mirrors..................................2-42
MP3 .............................................................3-80
MyGMLink.com................................................ 7-5
N
Navigation System, Privacy..............................7-18
Navigation/Radio System,
see Navigation Manual.................................3-86
New Vehicle Break-In......................................2-20
O
Odometer......................................................3-29
Odometer, Trip...............................................3-29
Off-Road Driving.............................................4-13
Off-Road Recovery..........................................4-12
Oil
Change Engine Oil Light...............................3-43
Engine.......................................................5-15
Pressure Gage............................................3-42
Oil, Engine Oil Life System..............................5-18
Older Children, Restraints................................1-32
Online Owner Center........................................ 7-5
OnStar, Privacy..............................................7-18
OnStar
®System, see OnStar®Manual...............2-43Operation, Universal Home Remote System........2-47
Outlet Adjustment............................................3-26
Outlets
Accessory Power.........................................3-18
Outside
Convex Mirror.............................................2-42
Heated Mirrors............................................2-42
Manual Mirrors............................................2-41
Power Mirrors.............................................2-42
Overhead Console..........................................2-51
Owner Checks and Services.............................. 6-8
Owners, Canadian............................................... ii
P
Paint, Damage..............................................5-110
Park
Shifting Into................................................2-34
Shifting Out of............................................2-36
Park Brake....................................................2-33
Parking
Over Things That Burn.................................2-36
Passenger Airbag Status Indicator.....................3-32
Passenger Sensing System..............................1-64
Passing.........................................................4-12
PASS-Key
®III+ Electronic Immobilizer...............2-18
PASS-Key®III+ Electronic Immobilizer
Operation...................................................2-18
Passlock
®......................................................2-17
9