2008 CHEVROLET TAHOE key

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 PARK (P).
The ignition key should come out only in
LOCK/OFF.
Contact your dealer/retailer if service is required.
Parking Brake and Automatic
Transmission Park (P) Mechanism
Check
{CAUTION:
When you are doing this check, your vehicle
could begin to move. You or others could be
injured and property could be damaged. Make
sure there is room in front of your 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
NEUTRAL (N), slowly remove foot pressure from
the regular brake pedal. Do this until the vehicle is
held by the parking brake only.
To check the PARK (P) mechanism’s holding ability:
With the engine running, shift to PARK (P). 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

Tire Sealant and Compressor Kit
Check the sealant expiration date printed on the
instruction label of the Tire Sealant and Compressor
Kit (if equipped) at least once a year. See your
dealer/retailer for a replacement canister.
Recommended Fluids and
Lubricants
Fluids and lubricants identied below by name, part
number, or specication can be obtained from your
dealer/retailer.
Usage Fluid/Lubricant
Engine OilEngine oil which meets GM
Standard GM6094M and displays
the American Petroleum Institute
Certied for Gasoline Engines
starburst symbol. To determine
the proper viscosity for your
vehicle’s engine, seeEngine
Oil on page 5-17.
Engine Coolant50/50 mixture of clean, drinkable
water and use only DEX-COOL
®
Coolant. SeeEngine Coolant on
page 5-31.
Usage Fluid/Lubricant
Hydraulic Brake
SystemDelco
®Supreme 11 Brake Fluid or
equivalent DOT-3 brake uid.
Windshield
WasherOptikleen
®Washer Solvent.
Power Steering
SystemGM Power Steering Fluid
(GM Part No. U.S. 89021184,
in Canada 89021186).
Automatic
TransmissionDEXRON
®-VI Automatic
Transmission Fluid.
Key Lock
CylindersMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241,
in Canada 10953474).
Chassis
LubricationChassis Lubricant
(GM Part No. U.S. 12377985, in
Canada 88901242) or lubricant
meeting requirements of NLGI #2,
Category LB or GC-LB.
Front Axle
(1500 Series
Vehicles with
Four-Wheel
Drive)SAE 80W-90 Axle Lubricant
(GM Part No. U.S. 89021671,
in Canada 89021672).
6-13

To read data recorded by an EDR, special equipment is
required, and access to the vehicle or the EDR is
needed. In addition to the vehicle manufacturer, other
parties, such as law enforcement, that have the special
equipment, can read the information if they have
access to the vehicle or the EDR.
GM will not access this data or share it with others
except: with the consent of the vehicle owner or, if the
vehicle is leased, with the consent of the lessee; in
response to an official request of police or similar
government office; as part of GM’s defense of litigation
through the discovery process; or, as required by law.
Data that GM collects or receives may also be used for
GM research needs or may be made available to others
for research purposes, where a need is shown and the
data is not tied to a specic vehicle or vehicle owner.
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 2-59in 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

Disc, MP3.............................................3-95, 3-99
Doing Your Own Service Work........................... 5-4
Dome Lamp Override......................................3-19
Dome Lamps .................................................3-18
Door
Delayed Locking..........................................2-11
Locks........................................................2-10
Power Door Locks.......................................2-10
Programmable Automatic Door Locks.............2-11
Rear Door Security Locks.............................2-11
Driver Information Center (DIC).........................3-51
DIC Operation and Displays..................3-51, 3-56
DIC Vehicle Customization............................3-67
DIC Warnings and Messages........................3-59
Driving
At Night.....................................................4-26
Before a Long Trip......................................4-28
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Highway Hypnosis.......................................4-28
Hill and Mountain Roads..............................4-29
In Rain and on Wet Roads...........................4-26
Off-Road ....................................................4-13
Recovery Hooks..........................................4-34
Rocking Your Vehicle to Get it Out.................4-34
Winter........................................................4-30
Dual Automatic Climate Control System.............3-24
DVD
Rear Seat Entertainment System..................3-105E
EDR .............................................................7-17
Electrical System
Add-On Equipment.....................................5-119
Center Instrument Panel Fuse Block.............5-121
Fuses and Circuit Breakers.........................5-119
Instrument Panel Fuse Block.......................5-120
Power Windows and Other Power Options....5-119
Underhood Fuse Block...............................5-122
Windshield Wiper Fuses.............................5-119
Electronic Immobilizer
PASS-Key
®III+...........................................2-22
Electronic Immobilizer Operation
PASS-Key
®III+...........................................2-23
Engine
Air Cleaner/Filter.........................................5-22
Check and Service Engine Soon Light............3-44
Coolant......................................................5-31
Coolant Heater............................................2-28
Coolant Temperature Gage...........................3-43
Drive Belt Routing.......................................6-16
Engine Compartment Overview......................5-16
Exhaust.....................................................2-46
Fan Noise..................................................5-41
Oil .............................................................5-17
Oil Life System...........................................5-20
Overheated Protection Operating Mode...........5-36
Overheating................................................5-34
Starting......................................................2-26
4

H
Hazard Warning Flashers................................... 3-6
Head Restraints..............................................1-10
Headlamp
Aiming .......................................................5-58
Headlamps
Bulb Replacement.......................................5-61
Daytime Running Lamps...............................3-16
Exterior Lamps............................................3-14
Flash-to-Pass............................................... 3-8
Halogen Bulbs............................................5-61
High/Low Beam Changer................................ 3-8
On Reminder..............................................3-15
Heated Seats................................................... 1-5
Heater...........................................................3-22
Engine Coolant...........................................2-28
Heater...........................................................3-24
Highbeam On Light.........................................3-49
Highway Hypnosis...........................................4-28
Hill and Mountain Roads..................................4-29
Hood
Checking Things Under................................5-14
Release.....................................................5-14
Horn ............................................................... 3-6
How to Wear Safety Belts Properly...................1-34
I
Ignition Positions.............................................2-25
Infants and Young Children, Restraints...............1-54
Ination - Tire Pressure...................................5-74
Instrument Panel
Brightness..................................................3-18
Cluster.......................................................3-35
Overview..................................................... 3-4
J
Jump Starting.................................................5-48
K
Keyless Entry System....................................... 2-4
Keys............................................................... 2-3
6

Older Children, Restraints................................1-50
Online Owner Center........................................ 7-5
OnStar, Privacy..............................................7-18
OnStar
®System, see OnStar®Manual...............2-59
Operation, Universal Home Remote System........2-63
Other Warning Devices...................................... 3-6
Outlet Adjustment............................................3-30
Outlets
Accessory Power.........................................3-20
Outside
Automatic Dimming Mirror.............................2-55
Convex Mirror.............................................2-55
Heated Mirrors............................................2-56
Manual Mirrors............................................2-52
Power Foldaway Mirrors...............................2-54
Power Mirrors.............................................2-53
Towing Mirrors............................................2-52
Overheated Engine Protection Operating Mode.....5-36
Owner Checks and Services.............................6-10
Owners, Canadian.............................................. iii
P
Paint, Damage..............................................5-116
Park
Shifting Into................................................2-43
Shifting Out of............................................2-45Park Aid........................................................2-56
Park Brake....................................................2-42
Park Tilt Mirrors..............................................2-55
Parking
Assist........................................................2-56
Over Things That Burn.................................2-45
Passenger Airbag Status Indicator.....................3-38
Passenger Sensing System..............................1-85
Passing.........................................................4-11
PASS-KEY
®III+ Electronic Immobilizer...............2-22
PASS-Key®III+ Electronic Immobilizer Operation . . . 2-23
Perchlorate Materials Requirements, California...... 5-4
Power
Door Locks.................................................2-10
Electrical System.......................................5-119
Liftgate......................................................2-14
Lumbar Controls........................................... 1-4
Retained Accessory (RAP)............................2-26
Running Boards..........................................2-17
Seat............................................................ 1-3
Steering Fluid.............................................5-42
Windows....................................................2-19
Privacy..........................................................7-17
Event Data Recorders..................................7-17
Navigation System.......................................7-18
OnStar.......................................................7-18
Radio Frequency Identication.......................7-18
Programmable Automatic Door Locks.................2-11
9

R
Radio Frequency Identication (RFID), Privacy....7-18
Radio(s)........................................................3-78
Radios
Navigation/Radio System, see
Navigation Manual..................................3-105
Rear Seat Audio........................................3-114
Reception.................................................3-117
Setting the Clock.........................................3-76
Theft-Deterrent..........................................3-116
Rainsense™ II Wipers....................................... 3-9
Reading Lamps..............................................3-19
Rear Air Conditioning and Heating System.........3-31
Rear Air Conditioning and Heating System
and Electronic Climate Controls.....................3-32
Rear Axle......................................................5-54
Locking........................................................ 4-6
Rear Door Security Locks................................2-11
Rear Heated Seats.........................................1-12
Rear Seat Armrest..........................................2-72
Rear Seat Audio (RSA)..................................3-114
Rear Seat Entertainment System.....................3-105
Rear Side Window Antenna............................3-118
Rear Storage Area..........................................2-72
Rear Windshield Washer/Wiper.........................3-11
Rearview Mirror, Automatic Dimming with
Compass and Temperature Display................2-49Rearview Mirror, Automatic Dimming with OnStar
®,
Compass and Temperature Display..................2-47
Reclining Seatbacks.......................................... 1-8
Recommended Fluids and Lubricants.................6-13
Recovery Hooks.............................................4-34
Recreational Vehicle Towing.............................4-45
Remote Keyless Entry (RKE) System.................. 2-4
Remote Keyless Entry (RKE) System, Operation..... 2-5
Remote Vehicle Start........................................ 2-8
Removing the Flat Tire and Installing
the Spare Tire.............................................5-95
Removing the Spare Tire and Tools...................5-91
Replacement Bulbs.........................................5-63
Replacement Parts, Maintenance......................6-15
Reporting Safety Defects
Canadian Government..................................7-15
General Motors...........................................7-15
United States Government............................7-15
Restraint System Check
Checking the Restraint Systems....................1-92
Replacing Restraint System Parts
After a Crash..........................................1-93
Retained Accessory Power (RAP)......................2-26
Roadside
Assistance Program....................................... 7-8
Rocking Your Vehicle to Get it Out....................4-34
Routing, Engine Drive Belt...............................6-16
Running Boards, Power...................................2-17
Running Out of Fuel........................................2-46
10

Start Vehicle, Remote....................................... 2-8
Starting the Engine.........................................2-26
Steering.......................................................... 4-9
Steering Wheel Controls, Audio.......................3-116
Steering Wheel, Tilt Wheel................................. 3-6
Storage Areas
Center Console Storage Area........................2-70
Cupholders.................................................2-70
Glove Box..................................................2-70
Luggage Carrier..........................................2-71
Rear Seat Armrest.......................................2-72
Rear Storage Area.......................................2-72
Stuck in Sand, Mud, Ice, or Snow.....................4-33
Sun Visors.....................................................2-20
Sunroof.........................................................2-73
T
Tachometer....................................................3-36
Taillamps
Turn Signal, Stoplamps and Back-up Lamps....5-61
Theft-Deterrent, Radio....................................3-116
Theft-Deterrent Systems...................................2-20
Content Theft-Deterrent................................2-21
PASS-Key
®III+ Electronic Immobilizer............2-22
PASS-Key®III+ Electronic Immobilizer
Operation................................................2-23
Third Row Seat..............................................1-25Tilt Wheel........................................................ 3-6
Time, Setting..................................................3-76
Tire
Pressure Light.............................................3-44
Tires.............................................................5-66
Aluminum or Chrome-Plated Wheels,
Cleaning...............................................5-114
Buying New Tires........................................5-82
Chains.......................................................5-88
Changing a Flat Tire....................................5-90
Cleaning...................................................5-115
Different Size..............................................5-84
If a Tire Goes Flat.......................................5-89
Ination - Tire Pressure................................5-74
Inspection and Rotation................................5-80
Installing the Spare Tire................................5-95
Pressure Monitor Operation...........................5-77
Pressure Monitor System..............................5-75
Removing the Flat Tire.................................5-95
Removing the Spare Tire and Tools...............5-91
Secondary Latch System............................5-102
Spare Tire................................................5-108
Storing a Flat or Spare Tire and Tools..........5-105
Tire Sidewall Labeling..................................5-67
Tire Terminology and Denitions....................5-71
Uniform Tire Quality Grading.........................5-84
Wheel Alignment and Tire Balance.................5-86
Wheel Replacement.....................................5-86
When It Is Time for New Tires......................5-81
12