check engine CHEVROLET TAHOE 2007 3.G Workshop Manual

Scheduled Maintenance (cont’d)
Service MaintenanceIMaintenanceII
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.•
581

(e)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 airbag coverings,
and have them repaired or replaced. The
airbag system does not need regular maintenance.
(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.(h)Change automatic transmission uid and lter
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, ush, and rell cooling system. This
service can be complex; you should have
your dealer perform this service. See Engine
Coolant on page 470 for what to use. Inspect
hoses. Clean radiator, condenser, pressure cap,
and ller neck. Pressure test the cooling
system and pressure cap.
(j)A uid loss in any vehicle system could indicate
a problem. Have the system inspected and
repaired and the uid level checked. Add uid if
needed.
585

(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 you drive regularly under dusty conditions,
inspect the lter at each engine oil change.
(m)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
the safety, dependability, and emission control
performance of your vehicle. Your GM
Goodwrench
®dealer can assist you with these
checks and services.
Be sure any necessary repairs are completed at
once. Whenever any uids or lubricants are added
to your vehicle, make sure they are the proper
ones, as shown inRecommended Fluids and
Lubricants on page 590.
At Each Fuel Fill
It is important to perform these underhood checks
at each fuel ll.
Engine Oil Level Check
Check the engine oil level and add the proper oil if
necessary. SeeEngine Oil on page 459for
further details.
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 your warranty.
Engine Coolant Level Check
Check the engine coolant level and add
DEX-COO®coolant mixture if necessary. See
Engine Coolant on page 470for further details.
Windshield Washer Fluid Level Check
Check the windshield washer uid level in
the windshield washer uid reservoir and add the
proper uid if necessary.
586

At Least Once a Month
Tire Ination Check
Visually inspect your vehicle’s tires and make sure
they are inated to the correct pressures. Do not
forget to check the spare tire. SeeInation - Tire
Pressure on page 515. Check to make sure the
spare tire is stored securely. SeeChanging a Flat
Tire on page 532.
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 521.
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 you start, be sure you have enough
room around the vehicle.
2. Firmly apply both the parking brake and the
regular brake. SeeParking Brake on
page 156.
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 PARK (P) or
NEUTRAL (N). If the vehicle starts in any
other position, contact your GM Goodwrench
®
dealer for service.
587

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 156.
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 ignition key should come out only in LOCK.
Contact your GM Goodwrench
®dealer if service is
required.
588

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.
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 GM parts.
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.
589

C
Calibration..........................................162, 166
California Fuel............................................. 447
California Proposition 65 Warning................ 445
Canadian Owners........................................... 3
Capacities and Specications...................... 572
Carbon Monoxide.....125, 127, 160, 400, 422
Care of
Safety Belts............................................. 556
Your CD and DVD Player........................ 353
Your CDs and DVDs................................ 353
Cargo Cover............................................... 192
Cargo Management System........................ 194
CD, MP3 ............................................321, 327
Center Console Storage Area...................... 190
Center Front Passenger Position,
Safety Belts............................................... 53
Center Seat.................................................. 19
Chains, Tire................................................. 530
Charging System Light................................ 248
Check
Engine Light............................................ 253
Checking Things Under the Hood................ 456
Chemical Paint Spotting.............................. 561Child Restraints
Child Restraint Systems............................. 68
Infants and Young Children........................ 64
Lower Anchors and Tethers for Children....... 74
Older Children........................................... 61
Securing a Child Restraint in a
Rear Seat Position ................................. 82
Securing a Child Restraint in the
Center Front Seat Position..................... 85
Securing a Child Restraint in the
Right Front Seat Position........................ 85
Where to Put the Restraint........................ 72
Cigarette Lighter.......................................... 227
Cleaning
Aluminum or Chrome-Plated Wheels........ 559
Exterior Lamps/Lenses............................. 557
Fabric/Carpet........................................... 554
Finish Care.............................................. 557
Inside of Your Vehicle.............................. 553
Instrument Panel, Vinyl, and Other
Plastic Surfaces.................................... 556
Leather.................................................... 555
Tires........................................................ 560
Underbody Maintenance........................... 560
Washing Your Vehicle.............................. 557
621

Dome Lamp Override.................................. 219
Dome Lamps............................................... 219
Door
Delayed Locking...................................... 123
Locks....................................................... 122
Power Door Locks................................... 123
Programmable Automatic Door Locks....... 123
Rear Door Security Locks........................ 124
Driver
Position, Safety Belt................................... 43
Driver Information Center (DIC)................... 260
DIC Operation and Displays............261, 267
DIC Vehicle Customization....................... 280
DIC Warnings and Messages................... 270
Driving
At Night................................................... 389
City.......................................................... 393
Defensive................................................. 356
Drunken................................................... 357
Freeway................................................... 394
Hill and Mountain Roads.......................... 398
In Rain and on Wet Roads...................... 390
Off-Road.................................................. 372
Recovery Hooks....................................... 406
Rocking Your Vehicle to Get it Out.......... 405
Winter...................................................... 400Dual Automatic Climate Control System....... 231
DVD
Rear Seat Entertainment System............. 337
E
Electrical System
Add-On Equipment................................... 563
Center Instrument Panel Fuse Block........ 566
Fuses and Circuit Breakers...................... 564
Instrument Panel Fuse Block................... 565
Power Windows and Other Power
Options................................................. 564
Underhood Fuse Block............................. 567
Windshield Wiper Fuses........................... 564
Engine
Air Cleaner/Filter...................................... 464
Check and Service Engine Soon Light..... 253
Coolant.................................................... 470
Coolant Heater......................................... 143
Coolant Temperature Gage...................... 252
Drive Belt Routing.................................... 593
Engine Compartment Overview................ 458
Exhaust................................................... 160
Fan Noise................................................ 483
Oil ........................................................... 459
623

G
Gage
Engine Coolant Temperature.................... 252
Fuel......................................................... 259
Oil Pressure............................................. 256
Speedometer........................................... 244
Tachometer.............................................. 244
Voltmeter Gage........................................ 249
Garage Door Opener................................... 178
Gasoline
Octane..................................................... 447
Specications........................................... 447
Glove Box................................................... 190
GM Mobility Reimbursement Program.......... 603
H
Hazard Warning Flashers............................ 204
Head Restraints............................................ 18
Headlamp
Aiming..................................................... 499
Headlamps
Bulb Replacement.................................... 502
Daytime Running Lamps.......................... 216
Flash-to-Pass........................................... 207
Halogen Bulbs......................................... 502Headlamps (cont.)
High/Low Beam Changer......................... 207
On Reminder........................................... 216
Heated Seats................................................ 12
Heater......................................................... 227
Heater......................................................... 231
Highbeam On Light..................................... 259
Highway Hypnosis....................................... 397
Hill and Mountain Roads............................. 398
Hood
Checking Things Under............................ 456
Release................................................... 457
Horn............................................................ 204
How to Use This Manual................................ 4
How to Wear Safety Belts Properly............... 43
I
Ignition Positions......................................... 140
Infants and Young Children, Restraints.......... 64
Ination - Tire Pressure............................... 515
Instrument Panel
Overview.................................................. 202
Instrument Panel (I/P)
Brightness................................................ 219
Cluster..................................................... 243
625

N
Navigation/Radio System, see Navigation
Manual..................................................... 337
New Vehicle Break-In.................................. 139
Normal Maintenance Replacement Parts....... 592
O
Odometer.................................................... 244
Odometer, Trip............................................ 244
Off-Road Driving.......................................... 372
Off-Road Recovery...................................... 369
Oil
Engine..................................................... 459
Pressure Gage......................................... 256
Pressure Light.......................................... 257
Oil, Engine Oil Life System......................... 462
Older Children, Restraints............................. 61
Online Owner Center................................... 601
OnStar
®System, see OnStar®Manual........ 173
Operation, Universal Home
Remote System..............................178, 182
Other Warning Devices................................ 204
Outlet Adjustment........................................ 238Outlets
Accessory Power..................................... 225
Outside
Automatic Dimming Mirror........................ 172
Convex Mirror.......................................... 173
Curb View Assist Mirrors.......................... 172
Heated Mirrors......................................... 173
Manual Mirrors......................................... 168
Power Foldaway Mirrors........................... 171
Power Mirrors.......................................... 170
Trailer-Tow Mirrors................................... 169
Overheated Engine Protection
Operating Mode....................................... 476
Owner Checks and Services....................... 586
Owners, Canadian.......................................... 3
P
Paint, Damage............................................ 560
Park Aid...................................................... 222
Park (P)
Shifting Into............................................. 157
Shifting Out of......................................... 159
628