automatic transmission GMC ENVOY DENALI 2007 Owner's Guide

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 126.
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.
515

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.
516

Recommended Fluids and
Lubricants
Fluids and lubricants identied below by name,
part number, or specication may be obtained
from your dealer.
Usage Fluid/Lubricant
Engine OilEngine oil which meets
GM Standard GM6094M and
displays the American Petroleum
Institute Certied for Gasoline
Engines starburst symbol.
GM Goodwrench
®oil meets all
the requirements for your vehicle.
To determine the proper viscosity
for your vehicle’s engine, see
Engine Oil on page 394.
Engine Coolant50/50 mixture of clean, drinkable
water and use only DEX-COOL
®
Coolant. SeeEngine Coolant
on page 405.
Hydraulic Brake
SystemDelco
®Supreme 11 Brake Fluid or
equivalent DOT-3 brake uid.
Usage Fluid/Lubricant
Windshield
WasherGM Optikleen
®Washer Solvent.
Parking Brake
Cable GuidesChassis Lubricant
(GM Part No. U.S. 12377985,
in Canada 88901242) or lubricant
meeting requirements of NLGI #2,
Category LB or GC-LB.
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.
517

Normal Maintenance Replacement Parts
Replacement parts identied below by name, part number, or specication can be obtained from your dealer.
Part GM Part Number ACDelco®Part Number
Automatic Transmission Filter Kit 24208576 TF337
Engine Air Cleaner/Filter 15036141 A2014C
Engine Oil Filter
4.2L L6 Engine 89017342 PF61
5.3L V8 Engine 89017524 PF48
Spark Plugs
4.2L L6 Engine 12598004 41-103
5.3L V8 Engine 12571164 41-985
Wiper Blades
Front – 22 inches (56 cm) 15214346 —
Rear – 16 inches (41 cm) 15160740 —
519

Appearance Care (cont.)
Washing Your Vehicle.............................. 486
Weatherstrips........................................... 485
Windshield, Backglass, and
Wiper Blades........................................ 487
Ashtray(s).................................................... 186
Audio System(s).......................................... 236
Audio Steering Wheel Controls................. 297
Care of Your CD and DVD Player............ 299
Care of Your CDs and DVDs................... 299
Chime Level Adjustment........................... 300
Fixed Mast Antenna................................. 299
Navigation/Radio System,
see Navigation Manual......................... 280
Radio with CD................................238, 248
Radio with Six-Disc CD............................ 258
Rear Seat Audio (RSA)............................ 295
Setting the Time...................................... 238
Theft-Deterrent Feature............................ 296
Understanding Radio Reception............... 298
XM™ Satellite Radio Antenna System...... 300
Automatic Headlamp System....................... 181
Automatic Transmission
Fluid........................................................ 401
Operation................................................. 118B
Battery........................................................ 422
Electric Power Management..................... 184
Run-Down Protection............................... 185
Before Leaving on a Long Trip.................... 340
Brake
Anti-Lock Brake System (ABS)................. 307
Emergencies............................................ 309
Parking.................................................... 126
System Warning Light.............................. 206
Brake Pedal, Throttle................................... 116
Brakes........................................................ 419
Braking....................................................... 306
Braking in Emergencies............................... 309
Break-In, New Vehicle................................. 112
Bulb Replacement....................................... 430
Back-Up Lamps....................................... 434
Front Turn Signal, Sidemarker and
Parking Lamps..................................... 432
Halogen Bulbs......................................... 430
Headlamps............................................... 431
License Plate Lamps................................ 435
Replacement Bulbs.................................. 435
Taillamps, Turn Signal, and Stoplamps..... 432
Buying New Tires........................................ 455
548

Engine (cont.)
Drive Belt Routing.................................... 520
Engine Compartment Overview................ 390
Exhaust................................................... 131
Fan Noise................................................ 416
Oil ........................................................... 394
Oil Life System........................................ 398
Overheating............................................. 408
Reduced Power Light............................... 215
Starting.................................................... 114
Entry Lighting.............................................. 183
Event Data Recorders (EDR)...................... 538
Exit Lighting................................................ 183
Extender, Safety Belt..................................... 41
F
Filter
Engine Air Cleaner................................... 400
Finish Damage............................................ 489
Fixed Mast Antenna.................................... 299
Flashers, Hazard Warning........................... 170
Flash-to-Pass.............................................. 173
Flat Tire...................................................... 464
Flat Tire, Changing...................................... 465Flat Tire, Storing......................................... 478
Fluid
Automatic Transmission............................ 401
Power Steering........................................ 417
Windshield Washer.................................. 418
Fog Lamps.................................................. 182
Four-Wheel Drive...............................122, 428
Front Axle................................................... 429
Fuel............................................................ 382
Additives.................................................. 383
California Fuel.......................................... 383
Check Gas Cap Light.............................. 217
Filling a Portable Fuel Container.............. 387
Filling Your Tank...................................... 385
Fuels in Foreign Countries....................... 384
Gage....................................................... 217
Gasoline Octane...................................... 382
Gasoline Specications............................ 383
Low Warning Light................................... 217
Fuses
Engine Compartment Fuse Block............. 493
Fuses and Circuit Breakers...................... 493
Rear Underseat Fuse Block..................... 499
Windshield Wiper..................................... 492
552

Towing
Recreational Vehicle................................. 355
Towing a Trailer....................................... 362
Your Vehicle............................................. 354
Traction
StabiliTrak
®System................................. 309
Transmission
Fluid, Automatic....................................... 401
Transmission Operation, Automatic.............. 118
Trip Odometer............................................. 199
Turn and Lane-Change Signals................... 172
Turn Signal/Multifunction Lever.................... 171
U
Understanding Radio Reception................... 298
Uniform Tire Quality Grading....................... 458
Universal Home Remote System........149, 150
Operation........................................151, 156
V
Vehicle
Control..................................................... 306
Damage Warnings....................................... 5
Loading.................................................... 349
Symbols...................................................... 5
Vehicle Customization, DIC......................... 229
Vehicle Data Collection and Event Data
Recorders................................................ 538
Vehicle Identication
Number (VIN).......................................... 491
Service Parts Identication Label.............. 491
Ventilation Adjustment.................................. 194
Visors.......................................................... 109
Voltmeter Gage........................................... 205
561