2008 GMC ENVOY battery replacement

Replacing Brake System Parts
The braking system on a vehicle is complex. Its many
parts have to be of top quality and work well together if
the vehicle is to have really good braking. Your vehicle
was designed and tested with top-quality brake parts.
When you replace parts of the braking system — for
example, when the brake linings wear down and you
need new ones put in — be sure you get new approved
replacement parts. If you do not, the brakes might not
work properly. For example, if someone puts in brake
linings that are wrong for your vehicle, the balance
between the front and rear brakes can change — for the
worse. The braking performance you have come to
expect can change in many other ways if someone puts
in the wrong replacement brake parts.
Battery
Your vehicle has a maintenance free battery. When it is
time for a new battery, see your dealer/retailer for
one that has the replacement number shown on the
original battery’s label. SeeEngine Compartment
Overview on page 5-12for battery location.
Warning:Battery posts, terminals, and related
accessories contain lead and lead compounds,
chemicals known to the State of California to cause
cancer and reproductive harm. Wash hands after
handling.
Vehicle Storage
{CAUTION:
Batteries have acid that can burn you and gas
that can explode. You can be badly hurt if
you are not careful. SeeJump Starting on
page 5-42for tips on working around a battery
without getting hurt.
Infrequent Usage: If you drive your vehicle infrequently,
remove the black, negative (−) cable from the battery.
This will help keep the battery from running down.
Extended Storage: For extended storage of your vehicle,
remove the black, negative (−) cable from the battery
or use a battery trickle charger. This will help maintain
the charge of the battery over an extended period
of time.
5-41

Roadside Assistance Program
For vehicles purchased in the U.S. call,
1-800-GMC-8782 (1-800-462-8782);
(Text telephone (TTY): 1-888-889-2438).
For vehicles purchased in Canada, call1-800-268-6800.
Service is available 24 hours a day, 365 days a year.
As the owner of a new GMC vehicle, you are
automatically enrolled in the GMC Roadside
Assistance program.
Who is Covered?
Roadside Assistance coverage is for the vehicle
operator, regardless of ownership. In Canada, a person
driving the vehicle without the consent of the owner
is not eligible for coverage.
Services Provided
The following services are provided in the U.S. and
Canada up to 5 years/100,000 miles (160 000 km),
whichever occurs rst, and, in Canada only, up
to a maximum coverage of $100.
Fuel Delivery:Delivery of enough fuel for the
vehicle to get to the nearest service station
(approximately $5 in Canada). In Canada, service
to provide diesel may be restricted. For safety
reasons, propane and other alternative fuels will
not be provided through this service.
Lock-out Service:Lock-out service will be
covered at no charge if you are unable to gain
entry into your vehicle. A remote unlock may
be available if you have an active OnStar
®
subscription. To ensure security, the driver must
present personal identication before lock-out
service is provided. In Canada, the vehicle
registration is also required.
Emergency Tow From a Public Roadway or
Highway:Tow to the nearest dealership for warranty
service or in the event of a vehicle-disabling crash.
Winch-out assistance is provided when the vehicle is
mired in sand, mud, or snow.
Flat Tire Change:Installation of a spare tire in good
condition, when equipped and properly inated, is
covered at no charge. The customer is responsible
for the repair or replacement of the tire if not covered
by a warrantable failure.
Jump Start:A battery jump start is covered at no
charge if the vehicle does not start.
7-8

Audio System.................................................3-65
Audio Steering Wheel Controls....................3-101
Chime Level Adjustment.............................3-103
Fixed Mast Antenna...................................3-103
Navigation/Radio System,
see Navigation Manual..............................3-87
Radio Reception........................................3-102
Rear Seat Audio (RSA)...............................3-100
Setting the Clock.........................................3-66
Theft-Deterrent Feature...............................3-101
XM™ Satellite Radio Antenna System...........3-103
Audio System(s).............................................3-66
Automatic Headlamp System............................3-15
Automatic Transmission
Fluid..........................................................5-23
Operation...................................................2-26
B
Battery..........................................................5-41
Electric Power Management..........................3-18
Run-Down Protection...................................3-19
Brake
Emergencies................................................ 4-5
Brakes..........................................................5-38
System Warning Light..................................3-38
Braking........................................................... 4-3
Braking in Emergencies..................................... 4-5
Break-In, New Vehicle.....................................2-20Bulb Replacement...........................................5-49
Back-Up Lamps...........................................5-53
Front Turn Signal, Sidemarker and
Parking Lamps.........................................5-51
Halogen Bulbs............................................5-49
Headlamp Aiming........................................5-49
Headlamps.................................................5-50
License Plate Lamps....................................5-53
Replacement Bulbs......................................5-54
Taillamps, Turn Signal, and Stoplamps............5-51
Buying New Tires...........................................5-74
C
Calibration.....................................2-39, 2-41, 2-44
California Fuel.................................................. 5-6
California Perchlorate Materials Requirements....... 5-4
California Proposition 65 Warning....................... 5-4
Canadian Owners................................................ ii
Capacities and Specications..........................5-120
Carbon Monoxide...................2-12, 2-37, 4-30, 4-45
Care of
Safety Belts..............................................5-103
Cargo Cover..................................................2-59
Cargo Tie Downs............................................2-60
CD, MP3 .......................................................3-82
Center Console Storage Area...........................2-57
Chains, Tire...................................................5-80
Charging System Light....................................3-36
2