1997 CHEVROLET CORVETTE coolant temperature

Downloaded from www.Manualslib.com manuals search engine If the transmission fluid temperature rises above 263 OF
(1 28 O C) or rises rapidly, this message is displayed.
The transmission may shift gears or apply the torque
converter clutch to reduce the fluid temperature.
Driving aggressively or driving on long hills can cause
the transmission fluid temperature to be higher than
normal. If this message appears, you may continue to
drive at a slower speed.
You should also monitor the
transmission fluid temperature and allow it to cool to at
least
230°F (1 10OC). The transmission fluid temperature
can be monitored with the GAGES button on the DIC.
See “Automatic Transmission Fluid” in the Index. You
should also check the engine coolant temperature.
If it is
also hot, see “Engine Overheating” in the Index.
If the HIGH TRANS TEMP message is displayed
during normal vehicle operation on flat roads, your
vehicle may need service. See your Chevrolet dealer
for an inspection.
LOW TIRE PRESSURE - (LF, LR, RF, RR): YOU
will hear two chimes when this message is displayed.
To acknowledge the warning, press RESET. After you
press RESET, a message will reappear and you will hear
a chime every
10 minutes until this condition changes.
This message indicates that the pressure in one of your
tires is less than
25 psi (172 kPa). Next to the LOW
TIRE PRESSURE message, you can see either LF (left
front), LR (left rear),
RF (right front) or RR (right rear) to indicate to
you which tire is low on pressure. You can
receive more than one tire pressure message at a time.
To read other messages that may have been sent at the
same time, press RESET.
If a tire pressure message
appears on the DIC, stop as soon as you can. Have the
tire pressures checked and set to those shown on your
Tire Loading Information Label. See “Extended
Mobility Tires” in the Index.
When the LOW TIRE PRESSURE or FLAT
TIRE message is displayed on the Driver
Information Center, your vehicle’s handling
capabilities will be reduced during severe
maneuvers.
If you drive too fast, you could lose
control
of your vehicle. You or others could be
injured. Don’t drive over
55 mph (90 km/h) when
the LOW TIRE PRESSURE or FLAT TIRE
message is displayed. Drive cautiously, and check
your tire pressures as soon as you can.
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Downloaded from www.Manualslib.com manuals search engine Mode Buttons
These buttons control the air intake, the air conditioning
and the rear window defogger operation.
outside air into your vehicle. The light on the button will
come on when operating. Use this setting while trying
to
defrost or defog windows to help clear moisture.
amount of fresh
air entering your vehicle by recirculating
most of the
air inside your vehicle. The light on the button
will come on when operating.
This setting is helpful when
you are trying to cool the
air quickly or to limit odors
entering your vehicle.
RECIRCULATE cannot be used
while in the DEFROST or DEFOG modes.
a NC: This button turns the air conditioning
compressor off or on under most conditions. The light
on the
A/C button comes on when the compressor is
operating. The air conditioning does not operate at
temperatures below approximately
35 OF to 40°F
(2" C to 4" C). The air conditioning cools and
dehumidifies the air coming into the vehicle. The
air conditioning cannot be turned off in DEFROST
as it helps to remove moisture from the vehicle. It also
helps to keep the windows clear.
FRESH AIR: Press this button and it will bring
RECIRCULATE: Press this button to limit the The air
conditioning may be forced off at high engine
speeds or high engine oil or coolant temperatures,
Rear Window Defogger
@ This button turns the rear defogger and heated
outside mirrors on. The light on the button will come
on when operating. The system automatically shuts off
after approximately
10 minutes. If further defogging is
desired, press the button again.
The rear window defogger operates only when the
engine
is running.
The rear window defogger uses a warming grid to
remove fog from the rear window.
Do not attach
anything like a temporary vehicle license or a decal
across the defogger grid on the rear window.
I NOTICE:
Don't use a razor blade or something sharp on
the inside
of the rear window. If you do, you
could cut or damage the warming grid, and repairs wouldn't be covered by your warranty.

Downloaded from www.Manualslib.com manuals search engine A Typical Cold Weather Example:
Your vehicle has been parked outside ~ver~~ight in
cold weather (below 32 OF/ 0" C) and you have set
the driver temperature at 73 OF (23
"C) and have selected
the AUTO mode. The system will automatically adjust
the temperature output to maximum heating. The fan
will start at a low speed. This
is to avoid blowing cold
air into the vehicle. The length of the delay depends
on the amount of time since the engine was last started,
the outside temperature and the engine coolant
temperature. As the coolant warms up, the fan speed
will gradually increase. Air will flow to the floor with
some air to the windshield to prevent fogging under
most normal conditions.
As the interior
of the vehicle warms up to your comfort
set temperature, the fan speed will decrease and the
temperature output may become cooler. If the interior
temperature continues to warm up due to heating from
the sun or outside temperature increases, the system
may switch to other air delivery modes (typically
DEFOG or BI-LEVEL).
A vpical Hot Weather Example:
Your vehicle has Seen parked outside all day in hot
weather (above
70 OF/ 2 1 O C) and you have set the
driver temperature at
73 "F (23 O C) and have selected
the AUTO mode. The system will automatically adjust
the temperature output to maximum cooling. The blower
will start at a low speed momentarily to push the hot
air to the floor of the vehicle and then
go to a higher
blower speed with cold airflow out of the instrument
panel outlets. A small amount of airflow will continue
through the lower ducts to cool the floor area.
The air intake may start in the recirculated mode for
maximum cooling performance. As the interior of the
vehicle cools down to your comfort set temperature,
the fan speed will decrease and the temperature output
may become warmer. The air intake may shift from
recirculation to fresh air mode.
If the interior continues
to cool due to a decrease in the amount
of heat the
vehicle is absorbing from the sun or a decrease in the
outside temperature, the system could switch to other air
delivery modes (typically BI-LEVEL or DEFOG).
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Downloaded from www.Manualslib.com manuals search engine Heating
The heater works best if you keep your windows closed.
Maximum heating will occur when airflow direction
is in the lower mode and the temperature control knob
(on a manual climate control system) is all the way in
the red area. These settings will be selected by the
Automatic Electronic Dual Climate Control System if
operating in AUTO when maximum heating is required.
The BI-LEVEL setting is designed for use on sunny
days when the air is only moderately warm or cool.
On days like these, the sun may adequately warm
your upper body, but your lower body may not be
warm enough. The BI-LEVEL setting will direct
cooler airflow to your upper body and warmer air
to the floor area.
If you have the optional engine coolant heater and use
it during cold weather
0°F (- 18OC) or lower, your
heating system will provide heat more quickly because
the coolant is already warmed. See “Engine Coolant
Heater” in the Index.
Defogging and Defrosting
To rapidly defrost the windshield, the FRONT defrost
mode (electronic dual climate control system) or defrost
mode (manual control system) should be used and the
fan speed should be adjusted to the highest speed. With
the manual control system,
turn the temperature control
knob all the way to the red area.
To keep the windshield clear and provide heated air to
the floor area of
the vehicle, use the DEFOG setting.
Your vehicle is equipped with side window defogger
vents located near the side rearview mirrors.
3-12

Downloaded from www.Manualslib.com manuals search engine Engine Overheating
You will find an engine coolant temperature gage on the
instrument cluster and a COOLANT OVER TEMP
message on the Driver Information Center.
Overheated Engine Protection
Operating
Mode
Should a low coolant condition exist and the messages
COOLANT OVERTEMP and REDUCED ENGINE
POWER
are displayed, along with the CHECK
ENGINE light, an overheat protection mode which alternates firing groups of four cylinders helps prevent
engine damage. In this mode, you will notice a loss in
power and engine performance. This operating mode allows your vehicle to be driven to a safe place in an
emergency; you may drive up to
50 miles (80 km).
NOTICE:
After driving in the overheated engine protection
operating mode, to avoid engine damage, allow
the engine to cool before attempting any repair.
The engine
oil will be severely degraded. Repair
the cause of coolant
loss, change the oil and reset
the oil life monitor. See “Engine Oil, When to
Change” in the Index.
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Downloaded from www.Manualslib.com manuals search engine A 50/50 mixture of water and DEX-COOL@
coolant will:
Give freezing protection down to -34°F (-37°C).
Give boiling protection up to 265 "F (129" C).
Protect against rust and corrosion.
Help keep the proper engine temperature,
Let the warning lights and gages work as
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.
Adding only plain water to your cooling system
can be dangerous. Plain water, or some other
liquid like alcohol, can boil before the proper
coolant mix will. Your vehicle's coolant warning
system
is set for the proper coolant mix. With
plain water or the wrong mix, your engine could
get too hot but you wouldn't get the overheat
warning. Your engine could catch fire and
you or
others could be burned. Use
a 50/50 mix of clean
water and DEX-COOL@ coolant.
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Downloaded from www.Manualslib.com manuals search engine Surge Tank Pressure Cap
NOTICE:
The surge tank pressure cap is a 15 psi (105 kPa)
pressure-type cap and must be tightly installed to prevent coolant loss and possible engine damage
from overheating.
When you replace the surge tank pressure cap, a GM cap
is recommended.
Thermostat
Engine coolant temperature 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 pre-set temperature.
When you replace the thermostat, a
GM thermostat is
recommended.
Power Steering Fluid
When to Check Power Steering Fluid
It is not necessary to regularly check power steering
fluid unless you suspect there
is a leak in the system or
you hear an unusual noise. A fluid loss in this system
could indicate a problem. Have the system inspected
and repaired.
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Downloaded from www.Manualslib.com manuals search engine Maintenance Schedule
100,000 Miles (160 000 km) (Continued)
Change automatic transmission fluid and
filter if the vehicle is mainly driven under
one or more of these conditions:
- In heavy city traffic where the outside
temperature regularly reaches
90°F
(32°C) or higher.
- In hilly or mountainous terrain.
- Uses such as high performance operation.
If you haven ’t used your vehicle under any of these
conditions, the fluid and filter do not require change.
Manual transmission fluid doesn
’t require change.
DATE SERVICED BY: ACTUAL MILEAGE
150,000 Miles (240 000 km)
Cl Drain, flush and refill the cooling system
(or every
60 months since last service,
whichever occurs first). See “Engine
Coolant’’ in the Index for what to use.
An Emission Control Service.
DATE SERVICED BY: ACTUAL MILEAGE
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