1995 GMC SIERRA ECU

Tailgate
You can open the
tailgate by lifting up
on its handle while
pulling the tailgate
toward you.
To shut the tailgate, firmly push it away from you into the latch.
When you put the tailgate back up, pull it back toward you, to be sure that it
latches securely.
Tailgate Removal
The tailgate on your vehicle can be removed to allow for different loading
situations. Although the tailgate can be removed without assistance, you
may want someone to assist you with the removal to avoid possible finish
damage.
To remove the tailgate:
Raise the tailgate slightly and
release both
retaining cable
clips. To release
the cable clips,
lift the cable so it
points straight out
and push the
cable clips forward.
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0 With the tailgate
at a slight upward
angle,
pull back
on the tailgate at
the right edge and
then move the
tailgate to the
right,
to release
the left edge.
Reverse
the above procedure to re-install. Make sure the tailgate is secure.
Door Locks
A 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.
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Center High Mount Stop Lamp (CHMSL)
I window.
If equipment such as a cap or camper is installed, your Center High Mount
Stoplamp (CHMSL) will no longer be visible from behind. You should
select a cap or camper with a CHMSL on it or, if one is not available, have
one installed. See your GM dealer about how to connect your vehicle’s
wiring to a cap or camper CHMSL.
Camper Wiring Harness (Option)
An optional 5-wire harness is stored in the front stake pocket on the driver’s
side of the bed. The harness has
no connector, and should be wired by a
qualified electrical technician.
It must be routed out of your vehicle and securely attached so that it won’t
be pulled or rubbed while you’re using it.
Store the harness
in its original position. Wrap the harness together and tie it
neatly so it won’t be damaged.
If a camper is installed, your Center High Mount Stoplamp (CHMSL) will
no longer be visible from behind. You should select a camper with a
CHMSL on
it or, if one is not available, have one installed. See your GM
dealer about how to connect your vehicle’s wiring to a camper CHMSL.
Trailer Wiring Harness
7-wire harness is stored under your vehicle along the rear frame
crossmember. The harness connects to the underhood electrical center and
no connector, and should be wired by a qualified electrical technician.
Securely attach the harness to the trailer, then tape or strap it to your
vehicle’s frame rail. Be sure
you leave it loose enough so the wiring won’t
bind or break when turning with the trailer, but
not so loose that it drags on
the ground.
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To Lock The System:
1.
2.
3.
4.
5.
6.
7.
8.
9.
Write down any number from 000 to 999 and keep it in a safe place.
Turn the ignition to ACC or RUN.
Turn the radio off.
Press the
1 and 4 buttons together. Hold them down until “- - -” shows
on the display.
You are now ready
to enter your secret code. Don’t wait more than 15
seconds between any of the following steps. If you do, the radio
automatically returns
to time display and you must start the procedure
over at step
4.
Press MIN and “000” will appear on the display.
Press the
MIN button again to make the last two digits agree with your
code.
Press HR to make the first one or two digits agree
with your code.
Press AM/FM after you have confirmed that the code matches the one
you wrote down. rEP appears in the display, indicating that you need to
repeat steps
5 through 7.
Press AMEM and this time the display will show “SEC”. “SEC”
means the system is secured.
With the ignition
off, the THEFTLOCK indicator will flash.
To Unlock THEFTLOCK After a Power Loss
When battery power is reapplied to a secured radio, the radio won’t turn on
and “LOC” will appear on
the display.
Enter your secret code as follows. Pause no more than
15 seconds between
steps.
1. Turn the ignition on.
2. Turn the radio off.
3. Press MIN and “000” will appear on the display.
4. Press the MIN button again to make the last two digits agree with your
code.
5. Press HR to make the first one or two digits agree with your code.
6. Press AM/FM after you have confirmed that the code matches the one
you wrote down. SEC appears
in the display indicating that the radio is
now operable.
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To Disable THEFTLOCK
1. Turn the ignition on.
2, Turn the radio off.
3. With the time showing in th e display, press th e 1 and 4 buttons
together. Hold them down
until “SEC” shows on the display.
You are now ready to enter your secret code. Don’t wait more than
15
seconds between any of the following steps.
4. Press MIN and “000” will appear on the display.
5. Press the MIN button again to make the last two digits agree with your
code.
6. Press HR to make the first one or two digits agree with your code,
7. Press AMFM after you have confirmed that the code matches the one
you wrote down. “- ” will appear in the display, indicating that the
system is unsecured (disabled).
If the code is incorrect, “SEC” will appear in the display and the system will
still be secured. The radio will still operate if it is secured or unsecured. If
“SEC” appears and you still want to disable the system, follow the disable
procedure again and enter the correct code.
How to Operate Your ETRq AM-FM Stereo Audio
Compact Disc ATC System
This part tells you how your ETR“AM-FM stereo audio compact disc ATC
system works.
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5. Press MIN and “000” will appear on the display.
6. Press the MIN button again to make the last two digits agree with your
code.
7. Press HR to make the first one or two digits agree with your code.
8. Press AM/FM after you have confirmed that the code matches the one
you wrote down. rEP appears
in the display, indicating that you need to
repeat steps
5 through 7.
9. Press AM/FM and this time the display will show SEC.
With the ignition off, the THEFTLOCK indicator will flash.
To Unlock THEFTLOCK After a Power Loss
When battery power is reapplied to a secured radio, the radio won’t turn on
and
“LOC” will appear on the display.
Enter your secret code as follows. Pause no more than
15 seconds between
steps.
1. Turn the ignition on.
2. Turn the radio off.
3. Press MIN and “000” will appear on the display.
4. Press the MIN button again to make the last two digits agree with your
code.
5. Press HR to make the first one or two digits agree with your code.
6. Press AM/FM after you have confirmed that the code matches the one
you wrote down.
SEC appears in the display indicating that the radio is
now operable.
To Disable THEFTLOCK
1.
2.
3.
4.
5.
6.
Turn the ignition on.
Turn the radio off.
With the time showing
in the display, press the 1 and 4 buttons
together. Hold them down until
“SEC” shows on the display.
You are now ready
to enter your secret code. Don’t wait more than 15
seconds between any of the following steps.
Press MIN and
“000” will appear on the display.
Press the MIN button again
to make the last two digits agree with your
code.
Press
HR to make the first one or two digits agree with your code.
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7. Press AM/FM after you have confirmed that the code matches the one
you wrote down. -
system is unsecured (disabled).
id ’‘ will appear in the display, indicating that the
If the code is incorrect,
“SEC” will appear in the display and the system will
still be secured. The radio will still operate
if it is secured or unsecured. If
“SEC” appears and you still want to disable the system, follow the disable
procedure again and enter the correct code.
Remote Cassette Player - ETRR AM-FM Stereo Audio
Compact Disc ATC System
System that includes a
remote cassette player,
the cassette player
is
located in the center
of the instrument
panel.
Your tape player is built to work best with tapes that are
30 to 45 minutes
long on each side. Tapes longer than that are
so thin they may not work well
in this player.
To load a cassette tape with the ignition off, first press EJECT. Then, insert
the cassette tape.
Once the tape is playing,
use the control knobs for volume, balance, fade,
treble and bass just as
you do for the radio. A lighted tape symbol shows
when a cassette tape
is in the player. A lighted arrow will also appear and
show the direction of play when a tape is active.
The player automatically senses if the cassette tape
is metal or CRO;! and
adjusts for best playback sound. For metal tapes,
00 (Dolby@ Noise
Reduction) will appear
in the display.
Any time a cassette tape
is inserted, the top side is selected for play first.
PREV
(1) - Press PREV or 4 SEEK (in the opposite direction that the
lighted tape direction arrow points) to search for the previous selection.
A
minimum three-second blank gap is needed for the player to stop at the
beginning of the selection. The tape direction arrow will blink during
the
SEEK operation and the audio is in the mute mode.
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Driving Guidelines
Off-Road Driving with Your Four-wheel Drive
Vehicle
This off-road guide is for vehicles that have four-wheel drive.
Also, see “Anti-Lock Brakes”
in the Index.
If your vehicle doesn’t have four-wheel drive, you shouldn’t drive off-road
unless you’re
on a level, solid surface.
Off-road driving can be great fun. But it does have some definite hazards.
The greatest of these
is the terrain itself.
“Off-roading” means you’ve left the great North American road system
behind. Traffic lanes aren’t marked. Curves aren’t banked. There are no
road signs. Surfaces can
be slippery. rough, uphill or downhill. In short,
you’ve gone right back to nature.
Off-road driving involves some new skills. And that’s why it’s very
important that
you read this guide. You’ll find many driving tips and
suggestions. These will help make your off-road driving safer and more
enjoyable.
Before You Go Off-Roading
There are some things to do before you go out. For example, be sure to have
all necessary maintenance and service work done. Check to make sure all
underbody shields
(if so equipped) are properly attached. Be sure you read
all the information about your four-wheel drive vehicle in this manual.
Is
there enough fuel? Is the spare tire fully inflated? Are the fluid levels up
where they should be? What are
the local laws that apply to off-roading
where you’ll be driving?
If you don’t know, you should check with law
enforcement people in the area. Will you be
on someone’s private land? If
so, be sure to get the necessary permission.
Loading Your Vehicle for Off-Road Driving
There are some important things to remember about how to load your
vehicle.
The heaviest things should be on the load floor and forward of your
rear axle. Put heavier items as far forward
as you can.
doesn’t toss things around.
Be sure the load is secured properly, so driving on the off-road terrain
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