1997 GMC JIMMY ECU

Operating the Transmitter
Press and hold the appropriate button on the universal
transmitter. The red light comes on while the signal is
being transmitted.
Note that the effective transmission range of the
universal transmitter may differ from the hand-held
transmitter and from one channel to another.
Erasing Channels
To erase all three programmed channels, hold down
the two outside buttons until the red light begins to
flash. Individual channels cannot be erased.
but can be
reprogrammed using
the procedure for programming the
transmitter explained earlier.
Training a Garage Opener with a "Rolling
Code" 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 "code"
of your garage
door opener every time
it is opened or closed.
To determine if your garage door opener has this
"rolling code" feature. press the appropriate button on
the universal transmitter that was programmed. If the
red light tlashes 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.
-. 3
3.
4.
5.
6.
Program your hand-held transmitter to the universal
transmitter by following the steps provided under
"Programming the Transmitter" earlier in this section.
Remove the cover panel from the garage door opener
receiver.
It is located near the garage door opener motor.
Locate the training button
on the garage door opener
receiver. The exact location and color
will vary
among brands.
Press the training button on the garage door opener
receiver for one to two seconds.
Return
to your vehicle and press the programmed
button on the universal transmitter
until the red light
flashes rapidly (about two seconds).
Release the button. then repress
it to confirm 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 I
assistance. please call 1-800-355-35 15.
Accessories
Accessories for the universal transmitter are ava .I
:quire
lable
from the manufitcturer of the unit. If you would like
additional information. please call
1-800-355-35 15.
2-66

3. Turn the radio off.
5. Press MN and 000 will appear on the display.
6. Press MN 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 yo~l I~aue confirtned that the
code tnatches the
secret code you have written do~~l.
The display will show REP to let you know that you
need to repeat Steps
5 through 7 to confirm your
secret code.
9. Press AM-FM and this time the display will show
SEC to let you lcnow that your radio is secu-e. The
indicator by the volume control will begin flashing
when the ignition
is turned off.
Unlocking the Theft-Deterrent Feature After a
Power 1,oss
Enter yo~~r sccret code as follows; pause no more than
IS seconds between steps:
2. Press MN and 000 will appear on the display
3. Press HR to make the first o11e or two digits agree
with your code.
5. Press AM-FM after you have confimed that the
code nlatches the secret code you have written down.
The display will show SEC, indicating the radio is
IIOW operable and secure.
II’yo~l 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
\vi11 only Ila\~ three chances to enter the
correct
cock before INOP appears.
If‘ ~OLI lose or forget yo~~r code, contact your dealer.
3-18

Disabling the Theft-Deterrent Feature
Enter your secret code as follows; pause no more than
I5 seconds between steps:
1. Turn the ignition to ACCESSORY or RUN.
2. Turn the radio off.
5. Press MN again to nlake the last two digits agree
with your cock.
6. Press HR to make the first one or two digits agree
with your code.
7. Press AM-FM after you have confiI-med that the
code matches the secret code
you have written do~+m.
The display will show ---, indicating that the radio is
no longer secured.
If the code entered is incorrect, SEC will appear OII the
display. The radio
will remain sec~~red until the correct
code is entered.
Understanding Radio Reception
FWl Stereo
3-19

A CAUTION:
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
be
below
the top
of the seatbacks.
Unsecured cargo on the load floor can
tossed about whell driving over rough
terrain.
You or your passengers can be
struck by flying ot>,jects. Secure the
cargo properly.
0 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.
Environmental Concerns
4-16

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
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.
4-37

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.
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.
There’s
also important loading information for off-road
driving
in this manual. See “Loading Your Vehicle for
Off-Road Driving” in the Index.
Payload
The payload capacity is shown on the Certification/Tire
label. This
is the maxjInum load capacity that your
vehicle can carry.
Be sure to include the weight of the
occupants
as part of your load. If you added any
accessories
or equipment after your vehicle left the
factory. remelnber to subtract the weight of these things
from the payload. Your dealer can help you with this.
Add-on Equipment
When you carry rernovable items, yo11 may need to put a
limit 011 how many people you carry inside your vehicle.
Be sure to weigh your vehicle before you buy and install
the new equipment.
NOTICE:
Your warranty doesn’t cover parts or
components that fail because
of overloading.
4-44

c A -T-l[BN:
To help avoid injury to you or others:
0
0
0
0
0
0
Never let passengers ride in a vehicle that is
being towed.
Never tow faster than safe or posted speeds.
Never tow with damaged parts not
fully secured.
Never get under your vehicle after it has
been lifted by the tow truck.
Always use separate safety chains on each
side when towing
a vehicle.
Never use J-hooks. Use T-hooks instead.
I
A vehicle can fall from a car carrier if it isn’t
adequatelJT secured. This can cause a collision,
serious personal injury and vehicle damage. The
vehicle should
he 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. Always use
T-hooks inserted
in the T-hook slots. Never use
J-hooks. They
will damage drivetrain and
suspension components.
5-8

Follow this diagram to store the llnderbody-mounted spare.
A. Retainer
B. Valve Stem
(Pointed
Down)
C. Spare 01- Flat Tire
D. Spring
E. Wheel Wrench
F. Lower
G. Raise
H. Hoist
Arm
1. Put the tire on the gro~~nd at the rear of the vehicle,
with the valve stem pointed down and to the rear.
2. Pull the retainer t11ro~1sh the wheel.
3. Put the chisel end of the wheel wrench, on an angle,
through
the hole in the rear bllmper and into the hoist
shaft. Turn the wheel wrench clockwise until the tire
is raised against the underside
of the vehicle.
You will hear two "clicks" when the tire is secure.
but p~111 on the tire to make SLII-e.
5-33