heating GMC JIMMY 1997 Owner's Manual

EndgateLiftgate
It can be dangerous to drive with the rear
window, endgate or liftgate open because carbon
monoxide
(CO) gas can come into your vehicle.
You can’t see or smell CO. It can cause
unconsciousness and even death.
If you must drive with the rear window, endgate
or liftgate open or
if electrical wiring or other
cable connections must pass through the seal between the body and the rear window, endgate
or liftgate:
Make sure all windows are shut.
Turn the fan on your heating or cooling
system
to its highest speed with the setting on
VENT. That will force outside air into your
vehicle. See “Comfort Controls” in the Index.
instrument panel, open then1 all the way.
0 If’ you have air outlets on or under the
See “Ikgine Exhaust” in the Index.
Endgate Mounted Spare
2-9

NOTICE:
Loading cargo that weighs more than 200 lbs.
(91 kg) on the luggage carrier may damage your
vehicle. When you carry large things, never let
them hang over the rear
or the sides of your
vehicle. Load your cargo
so that it rests on the
slats and does not scratch or damage the vehicle.
Put the cargo against the side rails and fasten it
securely to the luggage carrier. Put the main
weight as far forward
as you can.
Don't exceed the maximum vehicle capacity when
loading your vehicle. For more information on vehicle
capacity and loading. see "Loading Your Vehicle"
in
the Index.
To prevent damage or loss of cargo as you're driving.
check now and then to make sure the luggage carrier and
cargo are still securely fastened.
Ashtrays and Cigarette Lighter
To use the lighter, press it in all the way, and let go.
When it's ready, it will pop back by itself.
NOTICE:
Don't hold a cigarette lighter in with your hand
while it
is heating. If you do, it won't be able to
back away from the heating element when it's
ready. That can make it overload, damaging the
lighter and the heating element.
The front ashtray must be completely pulled
out to the
open position before the ashtray cover opens
and
smoking material can be deposited.
2-61

Section 3 Comfort Controls and Audio Systems
In this section, you'll find out how to operate the comfort control and audio systems offered with your vehicle. Be
sure to read about the particular systems supplied with your vehicle.
3-2
3-2
3-3
3-3
3-4
3
-5
3-5
3-6
3 -6
3-6
3 -6
Comfort Controls
Climate Control System
Air Conditioning
Heating
Ventilation System
Defogging and Defrosting
Rear Window Defogger (Option)
Audio Systems
Setting the Clock
Setting the Clock for AM-FM Stereo
with Compact Disc Player and Automatic
Tone Control AM-FM Stereo 3-8
3- 10
3-13
3-17
3- 19
3- 19
3-20
3-2 1
3-2 1
AM-FM Stereo with Cassette Tape Player
(If Equipped)
AM-FM Stereo with Cassette Tape Player
and Equalizer
(If Equipped)
AM-FM Stereo
with Compact Disc Player
and Automatic Tone Control
(If Equipped)
Theft-Deterrent Feature
Understanding Radio Reception
Tips About Your Audio System
Care
of Your Cassette Tape Player
Care
of Your Compact Discs
Fixed Mast Antenna
3-1

Air Conditioning
011 cool but sunny days, use BI-LEVEL A/C to deliver
~varm
air to the floor and cooler air to the instrument
p"nel outlets.
When the air conditioner is on. you may sometimes
notice slight changes
in your 1:ehicle's engine speed and
power, This
is normal because the system is designed
to cycle the compressor
on and off to keep the
clesired temperature.
Heating
The heater works best if yo11 keep plr windows closed
while using
it. On cold days. use HEATER With the
ten~perature knob turned clockwise.
BLEND is LISS~LI~ in
cool weather when you have fos or ice on the
winclshield
or side windows.
If ~OLI use the optional engine coolant heater befhre
starting yo~~r engine. your heatin2 system will produce
warmer air faster to heat the passenger compartment
in
cold weather. See "Engine Coolant Heater" in the Index.
3-3

Ventilation System
For mild outside temperatures when little heating or
cooling
is needed, use VENT to direct outside air
through your vehicle. Airflow
is through the instrument
panel outlets.
Your vehicle’s ventilation system
supplies outside air to
the inside of your vehicle when
it is moving. When the
vehicle is not moving, you can get outside air
to flow
through by selecting any mode and any fan speed. You
can move
the outlets to direct the flow of air, or
close the outlets altogether. When you close
an outlet, it
will increase the tlow of air coming out of any outlets
that are open.
Ventilation Tips
Keep the hood and front air inlet free of ice, snow or
any other obstruction (such as leaves). The heater
and defroster
will work far better, reducing the
chance
of fogging the inside of your windows.
When you enter a vehicle in cold weather, move the
fan control
to HI for 2.1 few moments before driving
off. This helps clear the intake ducts of snow and
moisture, and reduces the chance of fogging the
inside of your windows.
0 Keep the air path under the front seats clear of
objects. This helps air to circulate throughout
your vehicle.
You will find air outlets in the center and on the sides of
your instrument panel.

Driving with a Trailer
1 CAUTION:
If you have a rear-most window open and you
pull a trailer with your vehicle, carbon nlonoxide
(CO) could corne 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:
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 AX because it only recirculates the
air inside your vehicle. (See “ Comfort
Controls” in the Index.)
4-50

When towing a trailer, the ~~rrows on your instrument
panel
will flash for turns even if the bulbs on the trailer
itre burned out. Thus. you may think drivers behind you
are seeing your signal when they are not. It's important
to check occasionally to be sure the trailer bulbs arc
still working.
Driving On Grades
On a long uphill grade, shift down and reducc your
speed
to around 45 mph (70 km/h) to reduce the
possibility
of engine and transmission ovc.rheating.
If you have an automatic transmission. you should use
DRIVE
(D) when towing a trailer. Operating your
vehicle
in DRIVE (D) when towing a trailer will
minimize heat buildup and extend the life
of your
trrmsmission. Or:
if you have ;1 manual transmission. it's
better not to use FIFTH (5) gear. just drive in
FOURTH (4) gear (or, as you need to, a I~MW gear). Whcn
towins at high altitude
on steep uphill grades,
consider the following: Engine coolant will boil at a
lower temperature than at normal altitudes. If yo^^ turn
your engine off immediately after towing
at high altitude
on steep uphill grades, your \:ellicle may show signs
similar to engine overheating.
To avoid this. let the
engine
r~~n while parked (preferably on level grout1d)
with the automatic transmission in PARK (Pj (or the
1manuaI transmission out of
gear and the parking brake
applied) 1'01-
;I few minutes before turning the engine off.
If you do get the overheat warning. see "Engine
Overheating"
in the Index.
Parking on Hills
You really should not park your vehicle. with a trailer
attached.
on a hill. If something goes wrong, your rig
could start
to move. People can be injured, and both
yo~~r vehicle and the trailer can
be damaged.
4-52

Engine Overheating
You will find a coolant temperature gage on your
vehicle's instrument panel.
If Steam Is C . - g I; - ___I Your Engine
Steam from an overheated engine can burn you
badly, even if you just open the hood. Stay away
from the engine
if you see or hear steam coming
from it. Just turn it off and get everyone
away
from the vehicle until it cools down. Wait until
there
is no sign of steam or coolant before you
open the hood.
If you keep driving when your engine is
overheated, the liquids in it can catch fire,
You or
others could be badly burned.
Stop your engine if
it overheats, and get out of the vehicle until the
engine
is cool.
NOTICE:
If your engine catches fire because you keep
driving with no coolant, your vehicle can
be
badly damaged. The costly repairs would not be
covered by your warranty.
5-12

Engine Coolant
The cooling s stem in your vehicle is filled with
DEX-COOL engine coolant. This coolant is designed
to remain in your vehicle
for 5 years or 150,000 miles
(240 000 km) whichever occurs first, if you add only
DEX-COOL’ extended life coolant.
The following explains your cooling system and how to
add coolant when it is low. If you have a problem with
engine overheating, see “Engine Overheating” in
the Index.
A 50/50 mixture of water and the DEX-COOL@ coolant
for your vehicle will:
Give freezing protection down to -34°F (-37°C).
0 Give boiling protection up to 265 OF ( 129 O C).
Protect against rust and corrosion.
Help keep the proper engine temperature.
Let the warning lights and gages work as
8
they should.
NOTICE:
When .adding coolant, it is important that you use
only
DEX-COOL@ (silicate-free) coolant.
If coolant other than DEX-COOL@ is added to
the system, premature engine, heater core
or
radiator corrosion may result. In addition, the
engine coolant will require change sooner
-- at
30,000 miles (50 000 km) or 24 months,
whichever occurs
first. Damage caused by the use
of coolant other than DEX-COOL@ is not
covered by your new vehicle warranty.
What to Use
Use a mixture of one-half clean water (preferably
distilled) and one-half DEX-COOL@ coolant which
won’t damage aluminum parts. If you use this mixture,
you don’t need to add anything else.
6-23

Radiator Pressure Cap
NOTICE:
Your radiator cap is a 15 psi (105 kPa)
pressure-type cap and must be tightly installed to
prevent coolant
loss and possible engine damage
fronl overheating. Be sure the arrows
on the cap
line up with the overflow tube on the radiator
filler neck.
Thermostat
Engine coolant temperattrre is controlled by a thermostat
in the engine coolant system. The thermostat stops the
flow of coolant through the radiator until the coolant
reaches
a preset temperature.
Power Steerinp Fluid
6-26