1996 CHEVROLET EXPRESS ECU

Downloaded from www.Manualslib.com manuals search engine Unlocking the Theft-Deterrent Feature After a
Power Loss
Enter your secret code as follows; pause no more than
15 seconds between steps:
1.
2.
3.
4.
5.
LOC appears when the ignition is on.
Press MN and 000 will appear on the display.
Press
MN 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 secret code
you have written down.
The display will show SEC, indicating the radio is
now operable and secure.
If you enter the wrong code eight times, INOP will
appear
on the display. You will have to wait an hour
with the ignition
on before you can try again. When you
try again, you will only have three chances to enter the
correct code before INOP appears.
If you lose or forget your code, contact your dealer.
Disabling the Theft-Deterrent Feature
Enter your secret code as follows; pause no more than
15 seconds between steps:
1. Turn the ignition to the ACCESSORY or RUN
position.
2. Turn the radio off.
3. Press the 1 and 4 buttons together. Hold them down
until
SEC shows on the display.
4. Press MN and 000 will appear on the display.
5. Press MN 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 AM-FM after you have confirmed that the
code matches
the secret code you have written down.
The display will show
---, indicating that the radio is
no longer secured.
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Downloaded from www.Manualslib.com manuals search engine If the code entered is incorrect, SEC will appear on the
display. The radio will remain secured
until the correct
code is entered.
When battery power is disconnected from a secured
radio, the radio won’t
turn on and LOC will appear on
the display.
To unlock a secured radio, see “Unlocking the
Theft-Deterrent Feature After
a Power Loss” earlier in
this section.
Understanding Radio Reception
FM Stereo
FM stereo will give you the best sound. But FM signals
will reach only about 10 to 40 miles (16 to 65 km). Tall
buildings or hills can interfere with FM signals, causing
the sound to come and
go.
AM
The range for most AM stations is greater than for FM,
especially at night. The longer range, however, can
cause stations to interfere
with each other. AM can pick
up noise from things like storms and power lines. Try
reducing the treble
to reduce this noise if you ever get it.
3-26

Downloaded from www.Manualslib.com manuals search engine Winter Driving
Here are some tips for winter driving:
0 Have your vehicle in good shape for winter.
0 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. What’s
the worst time
for this‘? “Wet ice.” Very cold
snow or ice can
be slick and hard to drive on. But wet
ice can be even more trouble because it may offer the
least traction
of all. You can get wet ice when it’s about
freezing
(32°F; 0°C) and freezing rain begins to fall.
Try to avoid driving on wet ice until salt and sand crews
can get there.
4-23

Downloaded from www.Manualslib.com manuals search engine The Certification/Tire label also tells you the maximum
weights for the front and rear axles, called Gross Axle
Weight Rating (GAWR).
To fine 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.
Do not load your vehicle any heavier than
the
GVWR, or either the maximum front or
rear
GAWR. If you do, parts on your vehicle
can break, or it can change the
way your
vehicle handles. These could cause you to lose
control.
Also, overloading can shorten the life
of your vehicle.
A CAUTION:
Things you put inside your vehicle can strike
and injure people
in a sudden stop or turn, or
in
a crash.
Put things in the cargo area of your vehicle.
Try to spread the weight evenly.
1 Never stack heavier things, like suitcases,
~ inside the vehicle so that some of them are
above the tops of the seats.
Don’t leave an unsecured child restraint in
your vehicle.
When you carry something inside the
vehicle, secure it whenever you can.
Don’t leave a seat folded down unless you
need to.
I
4-27

Downloaded from www.Manualslib.com manuals search engine Driving with a m .’ .er
If you have a rear-most window open and you
pull
a trailer with your vehicle, carbon monoxide
(CO) could come into your vehicle. You can’t see
or smell
CO. It can cause unconsciousness or
death. (See “Engine Exhaust” in the Index.) To
maximize your safety when towing
a trailer:
a
a
a
Have your exhaust system inspected for
leaks, and make necessary repairs before
starting
on your trip.
Keep the rear-most windows closed.
If exhaust does come into your vehicle
through a window in the rear
or another
opening, drive with your front, main
heating or cooling system on and with the
fan on any speed. This will bring fresh,
outside air into your vehicle.
Do not use
MAX A/C because it only recirculates the
air inside your vehicle. (See “Comfort
Controls” in the Index.)
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.
4-34

Downloaded from www.Manualslib.com manuals search engine I A CAUTION:
I I To help avoid injury to you or others:
0 Never let passengers ride in a vehicle that is
Never tow faster than safe or posted speeds.
0 Never tow with damaged parts not
0 Never get under your vehicle after it has
Always use separate safety chains on each
being
towed.
fully secured.
been lifted by the tow truck.
side when towing
a 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 should
be in NEUTRAL
(N) and the parking brake should
be released.
A CAUTION:
I
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.
5-7

Downloaded from www.Manualslib.com manuals search engine NOTICE:
Never remove or restore a tire frondto a stowage
position under the vehicle while the vehicle
is
supported by a jack. Always tighten the tire
fully against the underside of the vehicle when restowing
A flat rear tire reduces clearance to remove the spare
tire. If there is less than
12 inches (30.48 cm) between
the ground and the rear bumper or any trailer hitch, jack
up the vehicle
until the flat tire is off the ground.
(See “Removing
the Flat Tire” and “Installing the
Spare Tire,’’ Steps
4 through 8, in this section.)
Unless your vehicle has a flat rear tire, do not remove
or
restore a tire from/to a stowage position under the
vehicle while the vehicle is supported by a jack. Always
tighten the tire
fully against the underside of the vehicle
when restowing.
If you have a vehicle which was completed from a cab
and chassis, refer to the information from the body
suppliedinstaller.
The spare tire
is a full size tire, like the other tires on
your vehicle.
For cargo vans, the jack
is secured
in the rear
Remove the retaining wing bolt and lift
it off the
mounting bracket. Set the jack and jacking equipment
near the
flat tire.
5-22

Downloaded from www.Manualslib.com manuals search engine For passenger vans, the jack is secured on the rear
passenger side floor
of the vehicle.
Remove the retaining wing
bolt and lift it out of the
mounting bracket. Set the jack and jacking equipment
near the flat tire.
The ratchet has an UP side and a DOWN side.
5-23