ECU GMC SIERRA 1995 Owner's Manual
[x] Cancel search | Manufacturer: GMC, Model Year: 1995, Model line: SIERRA, Model: GMC SIERRA 1995Pages: 488, PDF Size: 26.01 MB
Page 162 of 488

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.
3-16
ProCarManuals.com
Page 167 of 488

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.
3-21
ProCarManuals.com
Page 168 of 488

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.
3-22
ProCarManuals.com
Page 186 of 488

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
4- 12
ProCarManuals.com
Page 187 of 488

A CAUTION:
0
0
0
Cargo on the load floor piled higher than the seatbacks can be
thrown forward during a sudden stop.
You or your passengers
could be injured. Keep cargo below the top of the seatbacks.
Unsecured cargo on the load floor can be tossed about when
driving over rough terrain.
You or your passengers can be
struck by flying objects. Secure the cargo properly.
Heavy loads on the roof raise the vehicle’s center of gravity,
making it more likely to roll over. You can be seriously or
fatally injured if the vehicle rolls over. Put heavy loads inside
the cargo area, not on the roof. Keep cargo in the cargo area
as far forward and low as possible.
You’ll find other important information in this manual. See “Vehicle
Loading,” “Luggage Carrier” and “Tires”
in the Index.
Traveling to Remote Areas
It makes sense to plan your trip, especially when going to a remote area.
Know the terrain and plan your route. You are much less likely to get bad
surprises. Get accurate maps
of trails and terrain. Try to learn of any
blocked or closed roads.
It’s also a good idea to travel with at least one other vehicle. If something
happens to one of them, the other can help quickly.
Does your vehicle have a winch‘?
If so, be sure to read the winch
instructions. In
a remote area, a winch can be handy if you get stuck. But
you’ll want to know how to use it properly.
Getting Familiar with Off-Road Driving
It’s a good idea to practice in an area that’s safe and close to home before
you go into the wilderness. Off-road driving does require some new and
different driving
skills. Here’s what we mean.
Tune your senses to different kinds
of signals. Your eyes, for example, need
to constantly sweep the terrain for unexpected obstacles. Your ears need to
listen for unusual tire or engine sounds. With your arms, hands, feet, and
body you’ll need
to respond to vibrations and vehicle bounce.
4-13
ProCarManuals.com
Page 205 of 488

Winter Driving
Here are some tips for winter driving:
0 Have your vehicle in good shape for winter. Be sure your engine
coolant mix is correct.
You may want to put winter emergency supplies in your vehicle.
Include an ice scraper, a small brush or broom, a supply of windshield
washer fluid, a rag, some winter outer clothing, a small shovel,
a flashlight,
a red cloth, and a couple of reflective warning triangles. And, if you will be
driving under severe conditions, include a small bag
of sand, a piece of old
carpet or a couple
of burlap bags to help provide traction. Be sure you
properly secure
these items in your vehicle.
Driving on Snow or Ice
Most of the time, those places where your tires meet the road probably have
good traction.
However, if there is snow
or ice between your tires and the road, you can
have a very slippery situation. You’ll have a lot less traction
or “grip” and
will need to be very careful.
4-31
ProCarManuals.com
Page 211 of 488

Loading Your Vehicle
-
DSI/KPA (COL3)
The Certification/Tire label is found on the rear edge of the driver’s door or
in the Incomplete Vehicle Document in the cab.
The label shows the size of your original tires and the inflation pressures
needed to obtain
the gross weight capacity of your vehicle. This is called the
GVWR (Gross Vehicle Weight Rating). The
GVWR includes the weight of
the vehicle, all occupants, fuel and cargo.
The CertificatiodTire label also tells you the maximum weights for the
front and rear axles, called Gross Axle Weight Rating (GAWR).
To find out
the actual loads
on your front and rear axles, you need to go to a weigh
station and weigh your vehicle. Your dealer can help
you with this. Be sure
to spread out your load equally on both sides of the centerline.
Never exceed the GVWR for your vehicle, or the GAWR for either the front
or rear axle.
And,
if you do have a heavy load, you should spread it out.
A CAUTION-:
In the case of a sudden stop or collision, things carried in the bed
of your truck could shift forward and come into the passenger \
area, injuring you and
others. If you put things in the bed of
your truck, you
should make sure they are properly secured.
4-37
ProCarManuals.com
Page 220 of 488

Will the trailer brake parts take 3,000 psi (20 650 Wa) of Ijressure? If
not, the trailer brake system must not be used with your vehicle.
Driving with a Trailer
Towing a trailer requires a certain amount of experience. Before setting out
for the open road, you’ll want to get to know your rig. Acquaint yourself
with the feel of handling and braking with the added weight of the trailer.
And always keep in mind that the vehicle you
are driving is now a good
deal longer and not nearly as responsive as your vehicle is by itself.
Before you start, check the trailer hitch and platform (and attachments),
safety chains, electrical connector, lamps, tires and mirror adjustment. If the
trailer has electric brakes, start your vehicle and trailer moving and then
apply the trailer brake controller by hand to be sure the brakes
are working.
‘This lets you check your electrical connection at the same \
time.
During your trip, check occasionally to be sure that the load is secure, and
that the lamps and any trailer brakes
are still working.
Following Distance
Stay at least twice as far behind the vehicle ahead as you would when
driving your vehicle without a trailer.
This can help you avoid situations that
require heavy braking and sudden turns.
Passing
You’ll need more passing distance up ahead when you’re towing a trailer.
And, because you’re a good deal longer, you’ll need to go much farther
beyond the passed vehicle before you can return to your lane.
.
Backing Up
Hold the bottom of the steering wheel with one hand. Then, to move the
trailer to the left, just move that hand to the left.
To move the trailer to the
right, move your hand to the right. Always back
up slowly and, if possible,
have someone guide you.
4-46
ProCarManuals.com
Page 231 of 488

To wing Your Vehicle
Try to have your GM dealer or a professional towing service tow your
vehicle. They can provide the right equipment and know how to tow
it
without damage.
If your vehicle has been changed since
it was factory-new. by adding such
things like fog lamps, aero skirting,
or special tires and wheels, these things
could be damaged during towing.
Before you do anything,
turn on the hazard warning flashers.
When you call, tell the towing service:
0 That your vehicle has rear-wheel drive, or that it has the four-wheel
drive option.
The make, model, and year of your vehicle.
0 Whether you can move the shift lever for the transmission and transfer
case,
if you have one.
If there was an accident. what was damaged.
A CAUTION:
To help avoid injury to you or others:
Never let passengers ride in a vehicle that is being towed.
0 Never tow faster than safe or posted speeds.
0 Never tow with damaged parts not fuIly secured.
0 Never get under your vehicle after it has been lifted by the
tow truck.
0 Always use separate safety chains on each side when towing a
vehicle.
0 For pickups (except cab chassis models), use T-hooks on front
. of vehicle, J-hooks on rear.
For cab chassis models, use J-hooks on front and rear of
vehicle.
When your vehicle is being towed, have the ignition key off. The steering
wheel should be clamped
in a straight-ahead position, with a clamping
device designed for towing, service.
Do not use the vehicle’s steering
column lock for this. The transmission and transfer case, if
you have one,
should be
in NEUTRAL (N) and the parking brake released.
5-7
ProCarManuals.com
Page 232 of 488

A CAUTION:
A vehicle can fall from a car carrier if it isn’t adequately
secured. This can cause
a collision, serious personal injury and
vehicle damage. The vehicle should be tightly secured with
chains or steel cables before it is transported.
Don’t use substitutes (ropes, leather straps, canvas webbing,
etc.) that can be cut by sharp edges underneath the towed
vehicle.
Towing From the Front
If you have a two-wheel drive vehicle, don’t have your vehicle towed on
the rear wheels, unless
you must. If the vehicle must be towed on the rear
wheels, don’t
go more than 35 mph (56 km/h) or farther than 50 miles (80
km) or your transmission will be damaged. If these limits must be exceeded,
then
the rear wheels have to be supported on a dolly.
If your vehicle has the four-wheel drive option and
the transfer case is
engaged, a dolly must be used under the rear wheels when towing from the
front .
5-8
ProCarManuals.com