1999 GMC ENVOY key

yellowblue
1-4
3. To program your keyless entry transmitter, press the
UNLOCK button within five seconds of
programming the memory button. You will hear a
chime to confirm programming of the transmitter.
When your vehicle is in PARK (P), push and release the
numbered memory button you just stored. The seat will
move to the set position. You will hear one chime.
Repeat Steps 1 and 2 to readjust the seat. The transmitter
need not be reprogrammed unless it needs to correspond
to the other numbered memory button.
If there is a third driver, use the seat adjuster switch to
adjust the seat.
Pressing any of the seat adjuster switches, the SET
button or pressing the desired memory button twice will
cause the seat to stop moving. If you push the numbered
button to adjust the seat and start the vehicle while the
seat is still adjusting, adjustment will pause while the
ignition is in START. Adjustment will resume after the
ignition is in RUN.Heated Front Seats
This control is located on
the side of the seat. This
feature will quickly heat the
lower cushion and lower
back of the driver and
front passenger seats for
added comfort.
Press the lower part of the switch to turn the heater on
low. Press the upper part of the switch to turn the heater
on high. Put the switch in the center position to turn the
heater off.
The passenger's safety belt must be engaged for the
heated seat feature to work on the passenger's seat.
ProCarManuals.com

yellowblue
1-20
The best way to protect the fetus is to protect the
mother. When a safety belt is worn properly, it's more
likely that the fetus won't be hurt in a crash. For
pregnant women, as for anyone, the key to making
safety belts effective is wearing them properly.
Right Front Passenger Position
To learn how to wear the right front passenger's safety
belt properly, see ªDriver Positionº earlier in
this section.
The right front passenger's safety belt works the same
way as the driver's safety belt
-- except for one thing.
If you ever pull the shoulder portion of the belt out all
the way, you will engage the child restraint locking
feature. If this happens, just let the belt go back all the
way and start again.
Air Bag System
This part explains the air bag system.
Your vehicle has ªNext Generationº frontal
air bags
-- one air bag for the driver and another
air bag for the right front passenger.
Next Generation frontal air bags are designed to help
reduce the risk of injury from the force of an inflating
air bag. But even these air bags must inflate very
quickly if they are to do their job and comply with
federal regulations.
ProCarManuals.com

yellowblue
1-27 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 GM 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 two 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.
Adding Equipment to Your Air
Bag-Equipped Vehicle
Q:If I add a push bumper or a bicycle rack to the
front of my vehicle, will it keep the air bags
from working properly?
A:As long as the push bumper or bicycle rack is
attached to your vehicle so that the vehicle's basic
structure isn't changed, it's not likely to keep the
air bags from working properly in a crash.
Q:Is there anything I might add to the front of the
vehicle that could keep the air bags from
working properly?
A:Yes. If you add things that change your vehicle's
frame, bumper system, front end sheet metal or
height, they may keep the air bag system from
working properly. Also, the air bag system may not
work properly if you relocate any of the air bag
sensors. If you have any questions about this, you
should contact Customer Assistance before you
modify your vehicle. (The phone numbers and
addresses for Customer Assistance are in Step Two of
the Customer Satisfaction Procedure in this manual.
See ªCustomer Satisfaction Procedureº in the Index.)
ProCarManuals.com

2-
yellowblue
2-1
Section 2 Features and Controls
Here you can learn about the many standard and optional features on your vehicle, and information on starting,
shifting and braking. Also explained are the instrument panel and the warning systems that tell you if everything is
working properly
-- and what to do if you have a problem.
2
-2 Keys
2
-4 Door Locks
2
-6 Keyless Entry System
2
-9 Liftgate/Liftglass
2
-10 Theft
2
-11 Content Theft-Deterrent
2
-12 Passlock

2-13 New Vehicle ªBreak-Inº
2
-14 Ignition Positions
2
-16 Starting Your Engine
2
-17 Engine Coolant Heater (If Equipped)
2
-18 Automatic Transmission Operation
2
-21 Tow/Haul Selector Switch
2
-21 Four-Wheel Drive
2
-25 Parking Brake
2
-26 Shifting Into PARK (P)
2
-28 Shifting Out of PARK (P)
2
-29 Parking Over Things That Burn2
-30 Engine Exhaust
2
-30 Running Your Engine While You're Parked
2
-31 Locking Rear Axle
2
-31 Windows
2
-33 Tilt Wheel
2
-33 Turn Signal/Multifunction Lever
2
-40 Exterior Lamps
2
-42 Interior Lamps
2
-44 Mirrors
2
-46 Storage Compartments
2
-54 Ashtrays and Cigarette Lighter
2
-55 Sun Visors
2
-55 Accessory Power Outlets
2
-58 Sunroof (If Equipped)
2
-58 Universal Transmitter
2
-62 Instrument Panel
2
-64 Instrument Panel Cluster
2
-66 Warning Lights, Gages and Indicators
ProCarManuals.com

yellowblue
2-2
Keys
CAUTION:
Leaving children in a vehicle with the ignition
key is dangerous for many reasons. A child or
others could be badly injured or even killed.
They could operate power windows or other
controls or even make the vehicle move. Don't
leave the keys in a vehicle with children.
ProCarManuals.com

yellowblue
2-3
This vehicle has one
double
-sided key for the
ignition and door locks. It
will fit with either side up.
When a new vehicle is delivered, the dealer provides
the owner with a pair of identical keys and a key
code number.The key code number tells your dealer or a qualified
locksmith how to make extra keys. Keep this number in
a safe place. If you lose your keys, you'll be able to have
new ones made easily using this number. Your selling
dealer should also have this number.
NOTICE:
Your vehicle has a number of new features that
can help prevent theft. But you can have a lot of
trouble getting into your vehicle if you ever lock
your keys inside. You may even have to damage
your vehicle to get in. So be sure you have
extra keys.
ProCarManuals.com

yellowblue
2-4
Door Locks
CAUTION:
Unlocked doors can be dangerous.
Passengers -- especially children -- can easily
open the doors and fall out. When a door is
locked, the inside handle won't open it.
Outsiders can easily enter through an unlocked
door when you slow down or stop your vehicle.
This may not be so obvious: You increase the
chance of being thrown out of the vehicle in a
crash if the doors aren't locked. Wear safety belts
properly, lock your doors, and you will be far
better off whenever you drive your vehicle.
There are several ways to lock and unlock your vehicle.You can use the keyless entry system.
You can use your key to unlock your door from
the outside.
You can use your power door lock switch to unlock your
doors from the inside.
To lock your door from the inside, slide the lever on
your inside door down.
To unlock the door, slide the
lever on your inside door
up. You will see a red area
on the lever.
ProCarManuals.com

yellowblue
2-5 Power Door Locks
The power door lock switch is located on the armrest.
Remove the ignition key and press LOCK to lock all the
doors at once.
To unlock the doors, press the raised area next to the
key symbol.
The switch on each rear door works only that
door's lock.
Rear Door Security Lock
With this feature, you can
lock the rear doors so they
can't be opened from the
inside by passengers.
Move the lever up to lock
the doors and down to
release the door locks.
Lockout Prevention
To protect you from locking your key in the vehicle, this
feature stops the power door locks from locking when
the key is in the ignition and a door is open.
If the power lock switch is pressed when a door is open
and the key is in the ignition, all the doors will lock and
then the driver's door will unlock.
ProCarManuals.com