2001 GMC ENVOY service

Free lockout assistance
Free dead-battery assistance
Free out-of-fuel assistance
Free flat-tire change
Emergency towing
1-800-GMC-8782
(For vehicles purchased in Canada,
call
1-800-268-6800)
that provides in an emergency:
1-800-GMC-8782
(For vehicles purchased in Canada,
call
1-800-268-6800)
Courtesy
Transportation
Trip Routing
Every
2001
Jimmy/Envoy
under warranty is
backed with the
following
services:
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Table of Contents (cont'd)
Maintenance Schedule Service and Appearance Care
Section
7
Section
6
Scheduled Maintenance
Owner Checks and Services
Periodic Maintenance InspectionsRecommended Fluids and Lubricants
Maintenance Records Fuel
Checking Fluids and Lubricants
Engine Air Cleaner/Filter
Brakes
Bulb Replacement
Windshield Wiper Blade ReplacementTires and Wheels
Appearance Care
Electrical System/Fuses and Circuit Breakers
Capacities and Specifications
Normal Maintenance Replacement Parts
iv
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Table of Contents (cont'd)
Customer Assistance Information
In the Index you will find an alphabetical listing of almost every subject in this manual.
You can use it to quickly find something you want to read.
Section
8Customer Satisfaction Procedures
Customer Assistance Offices
Roadside Assistance and Courtesy Transportation
Warranty Information (See Warranty Manual)
Reporting Safety Defects on page 8-10
Service Publications
Index
Section
9
Please refer to the last page of this manual for your Service Station Guide
v
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For
a More
Detailed Look at
What's Under the Hood
See Section 6
Service Station Guide
Oil Viscosity
Engine Oil
See Section 6
Engine Oil Dipstick
See Section 6
Fuel
Use unleaded only.
See Section 6
for octane ratings.
Cooling System
See Section 5
Hood Release
See Section 6
Windshield Washer
Fluid
See Section 6
Spare Tire Pressure
See Section 5 & 6
Battery
See Section 6Tire Pressure
See Section 6
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1-9 Rear Seats
Your vehicle has a folding rear seat which lets you fold
the seatbacks down for more cargo space.
The rear seat release handles are located on the rear of
the seatbacks. Push back on the seatbacks as you pull
up on the handles. The head restraint will automatically
fold out of the way when the seatback is folded down.
To raise the seatbacks, just lift up the seatbacks and push
until they lock in the upright position. Push and pull on
the seatbacks to check that the latches have locked in
the upright position. If they haven't, see your dealer
for service.
To return the head restraints to the upright position,
reach behind the seats and pull the head restraint up
until it locks into position.
On two
-door models with an inside mounted spare tire,
the driver's side rear seat head restraint must be lifted
and held upright as the seatback is raised. Otherwise,
the head restraint will hit the spare tire and prevent the
seatback from properly latching.
Push and pull on the head restraints to check that they
have locked in the upright position. If they haven't,
see your dealer for service.
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1-28

Air bags are designed to inflate only once. After they
inflate, you'll need some new parts for your air bag
system. If you don't get them, the air bag system
won't be there to help protect you in another crash.
A new system will include air bag modules and
possibly other parts. The service manual for your
vehicle covers the need to replace other parts.

Your vehicle is equipped with a diagnostic module,
which records information about the air bag system.
The module records information about the readiness
of the system, when the system commands air bag
inflation and driver's safety belt usage at deployment.

Let only qualified technicians work on your air bag
system. Improper service can mean that your air bag
system won't work properly. See your dealer for service.
NOTICE:
If you damage the covering for the driver's or the
right front passenger's air bag, the bag may not
work properly. You may have to replace the air
bag module in the steering wheel or both the air
bag module and the instrument panel for the
right front passenger's air bag. Do not open or
break the air bag coverings.
Servicing Your Air Bag-Equipped Vehicle
Air bags affect how your vehicle should be serviced.
There are parts of the air bag system in several places
around your vehicle. You don't want the system to
inflate while someone is working on your vehicle.
Your dealer and the service manual have information
about servicing your vehicle and the air bag system.
To purchase a service manual, see ªService and Owner
Publicationsº in the Index.
CAUTION:
For up to 10 minutes after the ignition key is
turned off and the battery is disconnected, an air
bag can still inflate during improper service. You
can be injured if you are close to an air bag when
it inflates. Avoid wires wrapped with yellow tape
or yellow connectors. They are probably part
of the air bag system. Be sure to follow proper
service procedures, and make sure the person
performing work for you is qualified to do so.
The air bag system does not need regular maintenance.
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2-11
Keyless Entry System (If Equipped)
If your vehicle has this feature, you can lock and unlock
your doors from about 3 feet (1 m) up to 30 feet (9 m)
away using the remote keyless entry transmitter supplied
with your vehicle.
If your vehicle has this feature, you can lock and unlock
your doors and rear endgate from about 3 feet (1 m) up
to 30 feet (9 m) away using the remote keyless entry
transmitter supplied with your vehicle.
Your keyless entry system operates on a radio frequency
subject to Federal Communications Commission (FCC)
Rules and with Industry Canada.
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) this device may not cause harmful interference,
and (2) this device must accept any interference
received, including interference that may cause
undesired operation.
This device complies with RSS
-210 of Industry Canada.
Operation is subject to the following two conditions:
(1) this device may not cause interference, and (2) this
device must accept any interference received, including
interference that may cause undesired operation of
the device.Changes or modifications to this system by other than
an authorized service facility could void authorization to
use this equipment.
At times you may notice a decrease in range. This is
normal for any remote keyless entry system. If the
transmitter does not work or if you have to stand closer
to your vehicle for the transmitter to work, try this:

Check the distance. You may be too far from your
vehicle. You may need to stand closer during rainy
or snowy weather.

Check the location. Other vehicles or objects may be
blocking the signal. Take a few steps to the left or
right, hold the transmitter higher, and try again.

Check to determine if battery replacement or
resynchronization is necessary. See the instructions
that follow.

If you're still having trouble, see your dealer or a
qualified technician for service.
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2-13
NOTICE:
When replacing the battery, use care not to touch any
of the circuitry. Static from your body transferred
to these surfaces may damage the transmitter.
To replace the battery in the keyless entry transmitter
do the following:
1. Insert a dime in the slot between the covers of
the transmitter housing near the key ring hole.
Remove the bottom by twisting the dime.
2. Remove and replace the battery with a three
-volt
CR2032 or equivalent battery, positive (+) side up.
3. Align the covers and snap them together.
4. Resynchronize the transmitter.
5. Check the operation of the transmitter.
Resynchronization
Resynchronization may be necessary due to the security
method used by this system. The transmitter does not
send the same signal twice to the receiver. The receiver
will not respond to a signal it has been sent previously.
This prevents anyone from recording and playing back
the signal from the transmitter.
To resynchronize your transmitter, stand close to your
vehicle and press and hold the LOCK and UNLOCK
buttons on the transmitter at the same time for seven
seconds. The door locks should cycle to confirm
synchronization. If the locks do not cycle, see your
dealer for service.
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