2006 GMC ENVOY XL brake

Additional Required Services (cont’d)
Service and Miles (Kilometers)25,000
(40 000)50,000
(80 000)75,000
(120 000)100,000
(160 000)125,000
(200 000)150,000
(240 000)
Engine cooling system service (or every
ve years, whichever occurs rst).
An Emission Control Service. See
footnote (i).•
Inspect engine accessory drive belt.
An Emission Control Service. See
footnote (l).•
Maintenance Footnotes
(a)Visually inspect brake lines and hoses for proper
hook-up, binding, leaks, cracks, chang, etc. Inspect
disc brake pads for wear and rotors for surface
condition. Inspect other brake parts, including calipers,
parking brake, etc.
(b)Visually inspect front and rear suspension and
steering system for damaged, loose, or missing parts or
signs of wear. Inspect power steering lines and hoses
for proper hook-up, binding, leaks, cracks, chang, etc.(c)Visually inspect hoses and have them replaced if
they are cracked, swollen, or deteriorated. Inspect
all pipes, ttings and clamps; replace with genuine
GM parts as needed. To help ensure proper operation,
a pressure test of the cooling system and pressure
cap and cleaning the outside of the radiator and
air conditioning condenser is recommended at least
once a year.
(d)Visually inspect wiper blades for wear or cracking.
Replace wiper blades that appear worn or damaged
or that streak or miss areas of the windshield.
6-7

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 2-31.
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.
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 2-31.
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.
6-10

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.
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.
6-11

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, seeEngine Oil on
page 5-16.
Engine Coolant50/50 mixture of clean, drinkable
water and use only DEX-COOL
®
Coolant. SeeEngine Coolant on
page 5-25.
Hydraulic Brake
SystemDelco
®Supreme 11 Brake Fluid or
equivalent DOT-3 brake uid.
Windshield
WasherGM Optikleen
®Washer Solvent.
Usage Fluid/Lubricant
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.
Front and Rear
AxleSAE 75W-90 Synthetic
Axle Lubricant
(GM Part No. U.S. 12378261,
in Canada 10953455) meeting
GM Specication 9986115.
6-12

Vehicle Data Collection and Event
Data Recorders
Your vehicle, like other modern motor vehicles, has a
number of sophisticated computer systems that monitor
and control several aspects of the vehicle’s performance.
Your vehicle uses on-board vehicle computers to monitor
emission control components to optimize fuel economy,
to monitor conditions for airbag deployment and, if so
equipped, to provide anti-lock braking and to help the
driver control the vehicle in difficult driving situations.
Some information may be stored during regular
operations to facilitate repair of detected malfunctions;
other information is stored only in a crash event by
computer systems, such as those commonly called event
data recorders (EDR).
In a crash event, computer systems, such as the Airbag
Sensing and Diagnostic Module (SDM) in your vehicle
may record information about the condition of the vehicle
and how it was operated, such as data related to
engine speed, brake application, throttle position, vehicle
speed, safety belt usage, airbag readiness, airbag
performance, and the severity of a collision. If your
vehicle is equipped with StabiliTrak
®, steering
performance, including yaw rate, steering wheel angle,
and lateral acceleration, is also recorded.This information has been used to improve vehicle
crash performance and may be used to improve crash
performance of future vehicles and driving safety.
Unlike the data recorders on many airplanes, these
on-board systems do not record sounds, such as
conversation of vehicle occupants.
To read this information, special equipment is needed
and access to the vehicle or the device that stores
the data is required. GM will not access information
about a crash event or share it with others other than:
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.
In addition, once GM collects or receives data, GM may:
use the data for GM research needs,
make it available for research where appropriate
condentiality is to be maintained and need is
shown, or
share summary data which is not tied to a specic
vehicle with non-GM organizations for research
purposes.
7-10

Reporting Safety Defects to
General Motors
In addition to notifying NHTSA (or Transport Canada) in
a situation like this, we certainly hope you’ll notify us.
Please call us at 1-800-GMC-8782 (1-800-462-8782),
or write:
GMC Customer Assistance Center
P.O. Box 33172
Detroit, MI 48232-5172
In Canada, please call us at 1-800-263-3777 (English)
or 1-800-263-7854 (French). Or, write:
General Motors of Canada Limited
Customer Communication Centre, 163-005
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
Service Publications Ordering
Information
Service Manuals
Service Manuals have the diagnosis and repair
information on engines, transmission, axle suspension,
brakes, electrical, steering, body, etc.
Transmission, Transaxle, Transfer
Case Unit Repair Manual
This manual provides information on unit repair service
procedures, adjustments, and specications for GM
transmissions, transaxles, and transfer cases.
7-15

A
Accessories and Modications............................ 5-3
Accessory Inator...........................................5-71
Accessory Power Outlet(s)...............................3-19
Adding a Snow Plow or Similar Equipment.........4-50
Adding Equipment to Your Airbag-Equipped
Vehicle.......................................................1-72
Additives, Fuel................................................. 5-6
Add-On Electrical Equipment...........................5-102
Adjustable Throttle and Brake Pedal..................2-22
Air Cleaner/Filter, Engine.................................5-21
Air Conditioning......................................3-20, 3-23
Air Suspension...............................................4-55
Airbag
Passenger Status Indicator...........................3-36
Readiness Light..........................................3-35
Airbag Sensing and Diagnostic Module (SDM).......7-10
Airbag System................................................1-58
Adding Equipment to Your Airbag-Equipped
Vehicle...................................................1-72
How Does an Airbag Restrain?......................1-65
Passenger Sensing System...........................1-67
Servicing Your Airbag-Equipped Vehicle..........1-71
What Makes an Airbag Inate?......................1-65
What Will You See After an Airbag Inates?....1-66
When Should an Airbag Inate?....................1-63
Where Are the Airbags?...............................1-61
Antenna, Fixed Mast......................................3-143Antenna, XM™ Satellite Radio Antenna
System.....................................................3-143
Anti-Lock Brake System (ABS)........................... 4-7
Anti-Lock Brake, System Warning Light..............3-40
Appearance Care
Aluminum Wheels........................................5-98
Care of Safety Belts....................................5-95
Chemical Paint Spotting...............................5-99
Cleaning Exterior Lamps/Lenses....................5-96
Cleaning the Inside of Your Vehicle................5-92
Fabric/Carpet..............................................5-94
Finish Care.................................................5-96
Finish Damage............................................5-99
Instrument Panel, Vinyl, and Other
Plastic Surfaces.......................................5-95
Leather......................................................5-94
Sheet Metal Damage...................................5-99
Tires..........................................................5-98
Underbody Maintenance...............................5-99
Vehicle Care/Appearance Materials...............5-100
Washing Your Vehicle...................................5-96
Weatherstrips..............................................5-95
Windshield, Backglass, and Wiper Blades.......5-97
Ashtray(s)......................................................3-20
Audio System(s).............................................3-66
Audio Steering Wheel Controls....................3-139
Care of Your Cassette Tape Player...............3-141
Care of Your CD and DVD Player................3-142
Care of Your CDs and DVDs .......................3-142
1

Audio System(s) (cont.)
Chime Level Adjustment.............................3-143
Fixed Mast Antenna...................................3-143
Navigation/Radio System, see
Navigation Manual..................................3-124
Radio with Cassette and CD.........................3-96
Radio with CD....................................3-68, 3-80
Radio with Six-Disc CD..............................3-110
Rear Seat Audio (RSA)...............................3-137
Setting the Time..........................................3-68
Theft-Deterrent Feature...............................3-139
Understanding Radio Reception...................3-140
XM™ Satellite Radio Antenna System...........3-143
Automatic Headlamp System............................3-16
Automatic Transmission
Fluid..........................................................5-23
Operation...................................................2-24
B
Battery..........................................................5-41
Run-Down Protection...................................3-19
Before Leaving on a Long Trip.........................4-37
Brake
Anti-Lock Brake System (ABS)........................ 4-7
Emergencies................................................ 4-9
Parking......................................................2-31
System Warning Light..................................3-39
Brake Pedal, Throttle.......................................2-22Brakes..........................................................5-38
Braking........................................................... 4-6
Braking in Emergencies..................................... 4-9
Break-In, New Vehicle.....................................2-19
Bulb Replacement...........................................5-50
Back-Up Lamps...........................................5-52
Halogen Bulbs............................................5-50
Headlamps, Front Turn Signal, Sidemarker,
and Parking Lamps..................................5-50
Replacement Bulbs......................................5-52
Taillamps, Turn Signal, and Stoplamps............5-51
Buying New Tires...........................................5-66
C
Calibration.............................2-39, 2-40, 2-43, 2-44
California Fuel.................................................. 5-6
California Proposition 65 Warning....................... 5-3
Canadian Owners................................................ ii
Capacities and Specications..........................5-119
Carbon Monoxide...................2-13, 2-34, 4-40, 4-56
Care of
Safety Belts................................................5-95
Your Cassette Tape Player..........................3-141
Your CD and DVD Player...........................3-142
Your CDs and DVDs ..................................3-142
Cargo Cover..................................................2-61
Cargo Tie Downs............................................2-61
Center Console Storage Area...........................2-56
2