1999 GMC YUKON change time

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2-66 Training a Garage Door Opener with a
ªRolling Codeº Feature
If you programmed the universal transmitter, but the
garage door will not open, and if your garage door
opener was manufactured after 1995, your garage door
may have a security feature that changes the ªcodeº of
your garage door opener every time it is opened
or closed.
To determine if your garage door opener has this
ªrolling codeº feature, press the appropriate button on
the universal transmitter that was programmed. If the
red light flashes rapidly for one to two seconds, then
turns solid, your garage door opener has this feature.
To program a garage door opener with the rolling code
feature, do the following:
1. Program your hand
-held transmitter to the universal
transmitter by following the steps provided under
ªProgramming the Transmitterº earlier in
this section.2. Remove the cover panel from the garage door
opener receiver. It is located near the garage door
opener motor.
3. Locate the training button on the garage door opener
receiver. The exact location and color will vary
among brands.
4. Press the training button on the garage door opener
receiver for one to two seconds.
5. Return to your vehicle and press the programmed
button on the universal transmitter until the red light
flashes rapidly (about two seconds).
6. Release the button, then press it again to confirm
that it was programmed to the garage door
opener receiver.
You may now use either the universal transmitter or the
hand-held transmitter to open your garage door. If you
still have difficulty in programming and require
assistance, please call 1
-800-355-3515.

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2-81 Daytime Running Lamps (DRL)
Indicator Light
This light will go on
whenever the DRL are on.
When it begins to get dark, the DRL indicator light will
turn off and your automatic headlamps will turn on.
Check Gages Light
This light will come on
briefly when you are
starting the engine.
If the light comes on and stays on while you are driving,
it could indicate a problem with your vehicle. It could bea problem with your oil pressure, coolant temperature,
or some other problem. Check your various gages to see
if they are in the warning zones. If they are, have your
vehicle serviced right away.
Headlamp High-Beam Indicator Light
The high-beam indicator is
on whenever you use your
high
-beam headlamps. For
more details about high
beams, see ªHeadlamp
High/Low
-Beam Changerº
in the Index.
Turn Signal and Lane Change
Indicator Lights
The signal indicator will
come on whenever you
signal a turn or lane change.
See ªTurn Signal and Lane
Change Indicatorº in
the Index.

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3-14
P.SET PROG: The front passengers must be listening
to something different for each of these functions
to work:

Press this button to seek through the preset radio
stations set on your primary radio pushbuttons.

When a cassette tape is playing, press this button to
go to the other side of the tape.

When a CD is playing in the CD changer, press this
button to select a disc.
TAPE CD: Press this button to switch between the tape,
remote CD (if equipped) and console
-mounted CD
changer if all are loaded. Press AM
-FM to return to the
radio when a cassette tape or CD is playing. The
inactive tape or CD will remain safely inside the radio
for future listening.
Remote Compact Disc Player (If Equipped)
If you have this option, you can play one compact disc
(CD) at a time.
To load a CD into the player, hold the disc with the label
side up and insert it carefully into the player
(approximately halfway). The disc will automatically be
pulled into the player. If the radio is off and the ignition
is on when a CD is inserted, the radio will turn on and
begin playing the CD. It is possible to load and unload
CDs with the ignition off. To load a disc with the
ignition off, press the EJECT button on the remote
player and then insert the disc. To remove the disc, press
the EJECT button and remove the disc from the player.

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3-16
RECALL: Press this button to see what track is
currently playing. Press RECALL again within five
seconds to see how long the track has been playing.
When a new track starts to play, the track number will
also appear. Press RECALL a third time and the time of
day will be displayed.
TAPE AUX: With a disc loaded in the player and the
radio playing, press this button twice to play the remote
compact disc. To return to playing the radio, press
AM
-FM. If the cassette tape player, remote CD player
and console
-mounted CD changer are all loaded, press
TAPE AUX to switch between the tape, remote CD and
CD changer.
EJECT: Press this button on the remote player to eject a
compact disc.
Console-Mounted CD Changer
With the compact disc changer, you can play up to six
discs continuously. Normal size discs may be played
using the slots supplied in the magazine.

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3-18
PREV (1): Press this button or the SEEK left arrow to
go to the previous track if the current selection has been
playing for less than eight seconds. If the PREV button
is pressed and the current selection has been playing for
more than eight seconds, it will go to the beginning of
the current selection. If you hold or press this button
more than once, the player will continue moving back
through the disc. The sound will mute while seeking.
PROG (2): Press this button to select a disc. The disc
number and track number will be displayed.
NEXT (3): Press this button or the SEEK right arrow to
go to the next track. If you hold the button or press it
more than once, the player will continue moving
forward through the disc. The sound will mute
while seeking.
REV (4): Press and hold this button to reverse quickly
through a track selection. Release it to resume playing.FWD (6): Press and hold this button to advance quickly
through a track selection. Release it to resume playing.
SEEK: Press the right arrow to seek to the next
selection on the CD. Press the left arrow to search for
the previous selection on the CD. The sound will mute
while seeking.
P.SCAN: Press this button to hear the tracks in random,
rather than sequential, order. RANDOM will appear on
the display. Press P.SCAN again to turn off random play.
TAPE AUX: Press this button three times if you have a
disc loaded in the changer and the radio is turned on, to
play a compact disc. Press AM
-FM to return to the radio
when a compact disc is playing. Press TAPE AUX to
switch between the tape, remote CD (if equipped) and
console
-mounted CD changer if all are loaded.

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3-19
Compact Disc Changer Errors
If ERR appears on the display, it could be that:

You are driving on a very rough road. (The disc
should play when the road gets smoother.)

A disc is upside down.

It is dirty, scratched or wet.

It is very humid. (If so, wait about an hour and
try again.)

The disc player is very hot.

The CD changer door is open. Completely close the
changer door to restore normal operation.

An empty magazine is inserted in the CD changer.
Try the magazine again with a disc loaded on one of
the trays.
Press RECALL to make ERR go off the display.
If any error occurs repeatedly or if an error cannot be
corrected, please contact your dealer.Theft-Deterrent Feature
THEFTLOCK is designed to discourage theft of your
radio. It works by using a secret code to disable all radio
functions whenever battery power is removed.
The THEFTLOCK feature for the radio may be used or
ignored. If ignored, the system plays normally and the
radio is not protected by the feature. If THEFTLOCK is
activated, your radio will not operate if stolen.
When THEFTLOCK is activated, the radio will display
LOC to indicate a locked condition anytime battery
power has been interrupted. If your battery loses power
for any reason, you must unlock the radio with the secret
code before it will operate.
Activating the Theft
-Deterrent Feature
The instructions which follow explain how to enter your
secret code to activate the THEFTLOCK system. It is
recommended that you read through all nine steps
before starting the procedure.
NOTE: If you allow more than 15 seconds to elapse
between any steps, the radio automatically reverts to
time and you must start the procedure over at Step 4.

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4-9
Remember: Anti-lock doesn't change the time you need
to get your foot up to the brake pedal or always decrease
stopping distance. If you get too close to the vehicle in
front of you, you won't have time to apply your brakes
if that vehicle suddenly slows or stops. Always leave
enough room up ahead to stop, even though you have
anti
-lock brakes.
Using Anti
-Lock
Don't pump the brakes. Just hold the brake pedal down
firmly and let anti
-lock work for you. You may feel the
brakes vibrate, or you may notice some noise, but
this is normal. Your anti
-lock brakes work at all
times
-- whether you are in two-wheel drive or
four
-wheel drive.
Braking in Emergencies
With anti-lock, you can steer and brake at the same
time. In many emergencies, steering can help you more
than even the very best braking.
Steering
Power Steering
If you lose power steering assist because the engine
stops or the system is not functioning, you can steer but
it will take much more effort.
Speed-Sensitive Steering
This system varies the amount of steering effort
proportionate to your vehicle speed. Steering is easier at
lower speeds for maneuvering and parking ease. As your
vehicle speed increases, the steering effort also
increases. At highway speeds, the amount of steering
effort is increased for vehicle control and stability.
Steering Tips
Driving on Curves
It's important to take curves at a reasonable speed.
A lot of the ªdriver lost controlº accidents mentioned on
the news happen on curves. Here's why:
Experienced driver or beginner, each of us is subject to
the same laws of physics when driving on curves. The
traction of the tires against the road surface makes it
possible for the vehicle to change its path when you turn
the front wheels. If there's no traction, inertia will keep
the vehicle going in the same direction. If you've ever
tried to steer a vehicle on wet ice, you'll understand this.
The traction you can get in a curve depends on the
condition of your tires and the road surface, the angle at
which the curve is banked, and your speed. While you're
in a curve, speed is the one factor you can control.

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4-13

Check your mirrors, glance over your shoulder and
start your left lane change signal before moving out
of the right lane to pass. When you are far enough
ahead of the passed vehicle to see its front in your
inside mirror, activate your right lane change signal
and move back into the right lane. (Remember that if
your right outside mirror is convex, the vehicle you
just passed may seem to be farther away from you
than it really is.)

Try not to pass more than one vehicle at a time on
two
-lane roads. Reconsider before passing the
next vehicle.

Don't overtake a slowly moving vehicle too rapidly.
Even though the brake lamps are not flashing, it may
be slowing down or starting to turn.

If you're being passed, make it easy for the
following driver to get ahead of you. Perhaps you
can ease a little to the right.
Loss of Control
Let's review what driving experts say about what
happens when the three control systems (brakes, steering
and acceleration) don't have enough friction where the
tires meet the road to do what the driver has asked.In any emergency, don't give up. Keep trying to steer and
constantly seek an escape route or area of less danger.
Skidding
In a skid, a driver can lose control of the vehicle.
Defensive drivers avoid most skids by taking reasonable
care suited to existing conditions, and by not ªoverdrivingº
those conditions. But skids are always possible.
The three types of skids correspond to your vehicle's
three control systems. In the braking skid, your wheels
aren't rolling. In the steering or cornering skid, too
much speed or steering in a curve causes tires to slip and
lose cornering force. And in the acceleration skid, too
much throttle causes the driving wheels to spin.
A cornering skid and an acceleration skid are best
handled by easing your foot off the accelerator pedal.
If your vehicle starts to slide, ease your foot off the
accelerator pedal and quickly steer the way you want the
vehicle to go. If you start steering quickly enough, your
vehicle may straighten out. Always be ready for a
second skid if it occurs.