2005 CHEVROLET TAHOE check engine

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 you start, be sure you have enough room
around the vehicle. It should be parked on a level
surface.
2. Firmly apply the parking brake. SeeParking Brake
on page 2-35.
Be ready to apply the regular brake immediately if
the vehicle begins to move.
3. With the engine off, turn the ignition to RUN, but do
not start the engine. Without applying the regular
brake, try to move the shift lever out of PARK (P)
with normal effort. If the shift lever moves out
of PARK (P), contact your GM Goodwrench
®dealer
for service.
Ignition Transmission Lock Check
While parked, and with the parking brake set, try to turn
the ignition to LOCK in each shift lever position.
The ignition should turn to LOCK only when the
shift lever is in PARK (P).
The key should come out only in LOCK.
Contact your GM Goodwrench
®dealer if service is
required.
6-11

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 GM Goodwrench
®dealer if service is
required.
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

Bulb Replacement (cont.)
Side Identication Marker Lamps...................5-54
Taillamps, Turn Signal, Stoplamps and
Back-up Lamps........................................5-57
Buying New Tires...........................................5-72
C
California Fuel.................................................. 5-5
Canadian Owners................................................ ii
Capacities and Specications..........................5-116
Carbon Monoxide...................2-14, 2-39, 4-45, 4-67
Care of
Safety Belts..............................................5-101
Your Cassette Tape Player..........................3-136
Your CD and DVD Player...........................3-137
Your CDs and DVDs..................................3-137
Cargo Cover..................................................2-59
Center Console Storage Area...........................2-57
Center Passenger Position, Safety Belts.............1-37
Chains, Tire...................................................5-76
Check
Engine Light...............................................3-48
Checking Things Under the Hood......................5-10
Chemical Paint Spotting.................................5-104
Child Restraints
Child Restraint Systems...............................1-49
Infants and Young Children...........................1-46Child Restraints (cont.)
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-57
Older Children.............................................1-44
Securing a Child Restraint Designed for the
LATCH System........................................1-59
Securing a Child Restraint in a Center Rear
Seat Position...........................................1-61
Securing a Child Restraint in a Rear Outside
Seat Position...........................................1-59
Securing a Child Restraint in the Center Front
Seat Position...........................................1-63
Securing a Child Restraint in the Right Front
Seat Position...........................................1-64
Top Strap...................................................1-54
Top Strap Anchor Location............................1-55
Where to Put the Restraint...........................1-52
Chime Level Adjustment.................................3-138
Cigarette Lighter.............................................3-21
Cleaning
Aluminum or Chrome-Plated Wheels.............5-103
Exterior Lamps/Lenses................................5-101
Fabric/Carpet..............................................5-99
Finish Care...............................................5-102
Inside of Your Vehicle..................................5-98
Instrument Panel, Vinyl, and Other Plastic
Surfaces...............................................5-100
Leather....................................................5-100
Tires........................................................5-104
Underbody Maintenance.............................5-104
3

Driver Information Center (DIC) (cont.)
DIC Warnings and Messages........................3-60
Driving
At Night.....................................................4-37
City...........................................................4-40
Defensive..................................................... 4-2
Drunken....................................................... 4-3
Freeway.....................................................4-41
Hill and Mountain Roads..............................4-44
In Rain and on Wet Roads...........................4-38
Off-Road....................................................4-22
Recovery Hooks..........................................4-51
Rocking Your Vehicle to Get it Out.................4-50
Winter........................................................4-45
Dual Automatic Climate Control System.............3-25
Dual Climate Control System............................3-22
DVD
Rear Seat Entertainment System..................3-122
E
Electrical System
Add-On Equipment.....................................5-107
Center Instrument Panel Fuse Block.............5-110
Fuses and Circuit Breakers.........................5-107
Instrument Panel Fuse Block.......................5-108
Power Windows and Other Power Options....5-107
Underhood Fuse Block...............................5-111
Windshield Wiper Fuses.............................5-107Electrical System (cont.)
Engine
Air Cleaner/Filter.........................................5-21
Battery.......................................................5-41
Check and Service Engine Soon Light............3-48
Coolant......................................................5-26
Coolant Heater............................................2-23
Coolant Temperature Gage...........................3-46
Engine Compartment Overview......................5-12
Exhaust.....................................................2-39
Fan Noise..................................................5-35
Oil .............................................................5-16
Oil Life System...........................................5-19
Overheated Protection Operating Mode...........5-30
Overheating................................................5-28
Starting......................................................2-21
Entry Lighting.................................................3-19
Event Data Recorders (EDR)............................. 7-9
Exit Lighting...................................................3-19
Extender, Safety Belt.......................................1-43F
Filter
Engine Air Cleaner......................................5-21
Finish Damage.............................................5-104
Fixed Mast Antenna.......................................3-138
Flash-to-Pass................................................... 3-9
Flat Tire........................................................5-77
Flat Tire, Changing.........................................5-78
5

Memory Seat.................................................2-61
Message
DIC Warnings and Messages........................3-60
Mirrors
Automatic Dimming Rearview with Compass
and Temperature Display...........................2-43
Automatic Dimming Rearview with OnStar
®,
Compass and Temperature Display.............2-41
Manual Rearview Mirror................................2-41
Outside Automatic Dimming Mirror.................2-48
Outside Camper-Type Mirrors........................2-46
Outside Convex Mirror.................................2-49
Outside Curb View Assist Mirrors...................2-49
Outside Heated Mirrors................................2-49
Outside Manual Mirrors................................2-46
Outside Power Camper-Type.........................2-47
Outside Power Foldaway Mirrors....................2-48
Outside Power Mirrors..................................2-47
MyGMLink.com................................................ 7-3
N
Navigation/Radio System, see Navigation
Manual.....................................................3-121
New Vehicle Break-In......................................2-19
Normal Maintenance Replacement Parts............6-15
O
Odometer......................................................3-38
Odometer, Trip...............................................3-38
Off-Road Driving.............................................4-22
Off-Road Recovery..........................................4-19
Oil
Engine.......................................................5-16
Pressure Gage............................................3-52
Oil, Engine Oil Life System..............................5-19
Older Children, Restraints................................1-44
Online Owner Center........................................ 7-3
OnStar
®System, see OnStar®Manual...............2-50
Other Warning Devices...................................... 3-6
Outlet Adjustment............................................3-30
Outside
Automatic Dimming Mirror.............................2-48
Camper-Type Mirrors....................................2-46
Convex Mirror.............................................2-49
Curb View Assist Mirrors..............................2-49
Heated Mirrors............................................2-49
Manual Mirrors............................................2-46
Power Foldaway Mirrors...............................2-48
Power Mirrors.............................................2-47
Outside Power Camper-Type Mirror...................2-47
Overheated Engine Protection
Operating Mode..........................................5-30
Owner Checks and Services.............................. 6-9
Owners, Canadian............................................... ii
9

Rear Seat Entertainment System.....................3-122
Rear Seat Operation......................................... 1-8
Rear Seat Passengers, Safety Belts..................1-38
Rear Storage Area..........................................2-58
Rearview Mirror, Automatic Dimming with
Compass and Temperature Display................2-43
Rearview Mirror, Automatic Dimming with
OnStar
®, Compass and Temperature
Display......................................................2-41
Rearview Mirrors.............................................2-41
Reclining Seatbacks.......................................... 1-6
Recommended Fluids and Lubricants.................6-13
Recovery Hooks.............................................4-51
Recreational Vehicle Towing.............................4-62
Remote Keyless Entry System............................ 2-5
Remote Keyless Entry System, Operation............ 2-6
Removing the Flat Tire and Installing the
Spare Tire..................................................5-83
Removing the Spare Tire and Tools...................5-79
Replacement Bulbs.........................................5-58
Reporting Safety Defects
Canadian Government..................................7-11
General Motors...........................................7-11
United States Government............................7-10
Restraint System Check
Checking the Restraint Systems....................1-83
Replacing Restraint System Parts After
a Crash..................................................1-84
Retained Accessory Power (RAP)......................2-21
Right Front Passenger Position, Safety Belts......1-37Roadside
Assistance Program....................................... 7-6
Rocking Your Vehicle to Get it Out....................4-50
Running the Engine While Parked.....................2-40S
Safety Belt
Reminder Light............................................3-39
Safety Belts
Care of....................................................5-101
Center Passenger Position............................1-37
Driver Position............................................1-29
How to Wear Safety Belts Properly................1-28
Questions and Answers About Safety Belts.....1-28
Rear Safety Belt Comfort Guides for Children
and Small Adults......................................1-41
Rear Seat Passengers.................................1-38
Right Front Passenger Position......................1-37
Safety Belt Extender....................................1-43
Safety Belt Use During Pregnancy.................1-36
Safety Belts Are for Everyone.......................1-23
Safety Warnings and Symbols.............................. iii
Scheduled Maintenance..................................... 6-4
Seats
50/50 Split Bench Seat.................................1-11
60/40 Split Bench Seat.................................. 1-9
Bench Seat................................................1-16
Bucket Seats, Rear......................................1-21
11