coolant temperature CHEVROLET CORVETTE 2001 5.G Owners Manual

2-27 To Use the Engine Coolant Heater
1. Turn off the engine.
2. Open the hood and unwrap the electrical cord.
The electrical cord is attached to the generator
bracket assembly, between the generator and the
windshield washer fluid tank.With the headlamps
closed, route the cord in the opening between the
headlamp door and the fender panel on the driver's
side of the vehicle. Do not pinch the cord when
closing the hood.
3. Plug it into a normal, grounded 110
-volt AC outlet.
CAUTION:
Plugging the cord into an ungrounded outlet
could cause an electrical shock. Also, the wrong
kind of extension cord could overheat and cause
a fire. You could be seriously injured. Plug the
cord into a properly grounded three
-prong
11 0
-volt AC outlet. If the cord won't reach, use a
heavy
-duty three-prong extension cord rated for
at least 15 amps.
4. Before starting the engine, be sure to unplug and store
the cord as it was before to keep it away from moving
engine parts. If you don't, it could be damaged.
How long should you keep the coolant heater plugged in?
The answer depends on the outside temperature, the kind
of oil you have, and some other things. Instead of trying to
list everything here, we ask that you contact your dealer in
the area where you'll be parking your vehicle. The dealer
can give you the best advice for that particular area.

2-33 One to Four Shift Light
(Manual Transmission)
When this light comes on,
you can only shift from
FIRST (1) to FOURTH (4)
instead of FIRST (1) to
SECOND (2).
You must complete the shift into FOURTH (4) to turn
off this feature. This helps you get the best possible
fuel economy.
After shifting to FOURTH (4), you may downshift to a
lower gear if you prefer.
NOTICE:
Do not try to force the shift lever into SECOND (2)
or THIRD (3) when the 1 TO 4 SHIFT light comes
on. Do not try to re
-engage FIRST (1) after
starting to shift into FOURTH (4). You will damage
your transmission. Shift only from FIRST (1) to
FOURTH (4) when the light comes on.
This light will come on when:

The engine coolant temperature is higher than
169F (76C),

you are going 15 to 19 mph (24 to 31 km/h) and

you are at 21 percent throttle or less.

2-87 Engine Coolant Temperature Gage
United States Canada
This gage shows the engine coolant temperature.
If the gage pointer moves into the shaded area, your
engine is too hot.
This means that your engine coolant has overheated.
If you have been operating your vehicle under normal
driving conditions, you should pull off the road, stop your
vehicle and turn off the engine as soon as possible. (The
larger tic marks are in increments of 30
below 220
F
(104
C) and in increments of 10
above 220
F (104
C).)
See ªEngine Overheatingº in the Index for
more information.
Malfunction Indicator Lamp
(Check Engine Light)
Your vehicle is equipped
with a computer which
monitors operation of the
fuel, ignition and emission
control systems.
This system is called OBD II (On
-Board
Diagnostics
-Second Generation) and is intended to assure
that emissions are at acceptable levels for the life of the
vehicle, helping to produce a cleaner environment. The
CHECK ENGINE light comes on to indicate that there is
a problem and service is required. Malfunctions often will
be indicated by the system before any problem is apparent.
This may prevent more serious damage to your vehicle.
This system is also designed to assist your service
technician in correctly diagnosing any malfunction.

2-91
The engine oil pressure can also be displayed using the
GAGES button on the Driver Information Center (DIC).
See ªDriver Information Centerº in the Index.
CAUTION:
Don't keep driving if the oil pressure is low.
If you do, your engine can become so hot that it
catches fire. You or others could be burned.
Check your oil as soon as possible and have your
vehicle serviced.
NOTICE:
Damage to your engine from neglected oil
problems can be costly and is not covered by
your warranty.
Security Light
This light comes on to
remind you to arm your
theft
-deterrent system. If it
comes on and stays on when
your ignition is on, there
may be a problem with your
theft
-deterrent system.
See ªTheft
-Deterrent Systemº and ªPASS-Key Systemº
in the Index.
Check Gages Warning Light
This light will come on
briefly when you are
starting the engine. If the
light comes on and stays on
while you are driving, check
your gages to see if they are
in the warning areas.
This light can come on for the following reasons:

Low Oil Pressure

High Coolant Temperature

High or Low Battery Voltage

Low Fuel Level

2-93
Driver Information Center (DIC)
The Driver Information Center (DIC) will display
information about how your vehicle is functioning, as
well as warning messages if a system problem is
detected. The DIC display area is located in the
instrument panel cluster below the speedometer and
tachometer, directly above the steering column.
The following buttons are located on the DIC control panel
which is located to the right of the instrument panel cluster.
1 FUEL: Press this button to display fuel information
such as fuel economy and range.
2 GAGES: Use this button to display gage information
like oil pressure and temperature, coolant temperature,
automatic transmission fluid temperature, battery
voltage and front/rear tire pressures.
3 TRIP: Use this button to display your total and trip
miles, the elapsed time function, your average speed and
the engine oil life.
4 OPTIONS: This button allows you to choose personal
options that are available on your vehicle, depending on
the options your vehicle is equipped with, such as
security, door locks, easy entry seats and language.
5 E/M: Use this button to change the display between
English and metric units.
RESET: This button, used along with the other buttons,
will reset system functions and turn off or acknowledge
messages on the Driver Information Center (DIC).
At the top of the DIC control buttons is a light sensor.
Be sure not to block the sensor or your lighting
functions may be disrupted.

2-96
Press the GAGE button again to display the oil
temperature, such as:

OIL TEMP 234 F or

OIL TEMP 112 C
Press the GAGE button again to display the coolant
temperature, such as:

COOLANT TEMP 123 F or

COOLANT TEMP 51 C
Press the GAGE button again to display the automatic
transmission fluid temperature, such as:

TRANS FLUID 123 F or

TRANS FLUID 51 C
Press the GAGE button again to display the battery
voltage, such as:

BATTERY VOLTS 13.5Press the GAGE button again to display the tire pressure
for the front tires, such as:

FRONT L34 R33 PSI or

FRONT L234 R228 kPa
Press the GAGE button again to display the tire pressure
for the rear tires, such as:

REAR L34 R33 PSI or

REAR L234 R228 kPa
Tire pressure is not available until the vehicle has
reached a speed of 15 mph (24 km/h) or more.

2-107
SERVICE RIDE CONTROL: This message is
used to indicate to the driver that the Selective Real Time
Damping (SRTD) system has detected a malfunction and
that the system must be serviced. The SERVICE RIDE
CONTROL message will always come on when a failure
is detected by the Selective Real Time Damping (SRTD)
system. If a fault is present in the SRTD which causes the
shocks to be in their full soft condition, the SERVICE
RIDE CONTROL, SHOCKS INOPERATIVE and
MAXIMUM 80 MPH (129 km/h) will display together.
You will never get a SHOCKS INOPERATIVE and
MAXIMUM SPEED 80 MPH (129 km/h) message
without a SERVICE RIDE CONTROL message.
SHOCKS INOPERATIVE: You will hear four chimes
when this message is displayed. To acknowledge that
you have read the message and to remove it from the
display, press RESET. The message will reappear every
10 minutes until this condition changes.
This message indicates that a malfunction is present in the
Selective Real Time Damping (SRTD) system which is
causing the shocks to be in their full soft mode. This is a
warning to the driver that the vehicle handling may be
affected. Have your vehicle serviced as soon as possible.MAXIMUM SPEED 80 MPH (129 km/h): You will
hear four chimes when this message is displayed. To
acknowledge the warning, press RESET. After you press
RESET, a message will reappear every 10 minutes until
this condition changes.
This message indicates that the vehicle speed will be
limited to 80 mph (129 km/h) when the shock absorber
system has failed and the shocks are in their full soft
mode. Have your vehicle serviced as soon as possible.
COOLANT OVER TEMP: You will hear four chimes
and the CHECK GAGES telltale will come on when this
message is displayed. To acknowledge the warning,
press the RESET button. After you press the RESET
button, a message will be displayed and you will hear a
chime every minute until this condition changes. If you
do not press RESET, the message will remain on the
digital display until the condition changes.
If the engine coolant exceeds 255
F (124
C), this
message is displayed. If you have been operating your
vehicle under normal driving conditions, you should
pull off from the road, stop your vehicle and turn off the
engine as soon as possible. You can monitor the coolant
temperature with the GAGES button on the DIC or the
engine coolant gage on the instrument panel cluster. See
ªEngine Overheatingº in the Index.

2-108
REDUCE ENGINE RPM: You will hear four chimes
when this message is displayed. To acknowledge the
warning, press the RESET button. After you press the
RESET button, a message will be displayed and you
will hear a chime every minute until this condition
changes. If you do not press RESET, the message will
remain on the digital display until the condition changes.
If the engine oil temperature exceeds 320
F (160
C),
this message is displayed. You should check the engine
coolant temperature and engine oil level. If your engine
is too hot, see ªEngine Overheatingº in the Index. Your
vehicle may need service, so see your dealer. You can
monitor the oil temperature with the GAGES button on
the DIC.
HIGH TRANS TEMP (Automatic Transmission
Only): You will hear four chimes when this message is
displayed. To acknowledge this warning, press the RESET
button. After you press the RESET button, the message
will be displayed every 10 minutes until the condition
changes. If you do not press RESET, the message remains
on the display until the condition changes.
If the transmission fluid temperature rises above
270
F (132
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 causethe 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 (110
C). The transmission fluid temperature
can be monitored with the GAGES button on the DIC.
See ªAutomatic Transmission Fluidº in the Index. You
should also check the engine coolant temperature. If it is
also hot, see ªEngine Overheatingº 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 dealer for an inspection.
SERVICE ACTIVE HANDLING: If the SERVICE
ACTIVE HNDLG message is displayed, there is a
problem with your Active Handling System and your
vehicle needs service. The instrument cluster light will
also be on and a chime will sound. When this message is
displayed, the system is not working. Adjust your
driving accordingly.
ACTIVE HANDLING: Your vehicle is equipped with
a computer controlled system to assist the driver in
controlling the vehicle in difficult driving conditions.
You may feel or hear the system working and see the
ACTIVE HANDLING message displayed in the DIC.
This is normal when the system is operating. Also see
ªAnti
-Lock Brakesº in the Index.

2-114
There are five HUD selections that you can choose to
view in the HUD display. By pressing and holding the
PAGE button, you can scroll through these pages in the
following order:

Speed Only

Speed and Gage

Speed, Tachometer and Gage

Speed and Tachometer

Tachometer Only
When you have chosen the desired HUD display, release
the PAGE button.
Gages can be scrolled through by tapping the PAGE
button (only when a gage is displayed). The gages
shown are the following:

Oil Pressure

Coolant Temperature

Fuel Level
The selections that you choose will remain in the
HUD display until they are changed.
Be sure to continue scanning your displays, controls and
driving environment just as you would in a vehicle
without HUD. If you never look at your instrument
panel cluster, you may not see something important,
such as a warning light. Under important warning
conditions, the CHECK GAGES icon will illuminate in
the HUD. View your Driver Information Center (DIC)
for more information.

3-3
DEFOG: This setting divides the air between the
windshield and lower outlets with a small amount of air
directed toward the side window vents. This is useful
when fog appears on the windshield or side glass due to
rain or snowy conditions.
DEFROST: Use this setting to quickly remove fog
or frost from the windshield. This setting directs most of
the airflow to the windshield with a small amount of air
directed toward the lower and side window outlets.
Mode Buttons
These buttons control the air intake, the air conditioning
and the rear window defogger operation.
OUTSIDE AIR: Press this button and it
will bring outside air into the 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.
RECIRCULATE: Press this button to limit the
amount of outside air entering the vehicle by
recirculating most of the air inside the 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 the vehicle. Recirculate cannot be
used while in the DEFROST or DEFOG modes.Operating the system in the recirculation mode may
cause fogging of the vehicle's windows when the
weather is cold and damp. To clear the fog, switch the
system to either the DEFOG or DEFROST mode and
increase the fan speed. To avoid re
-fogging of the
windows, operate the system in the OUTSIDE
AIR mode.
A/C: 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
F 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.
The air conditioning may be forced off at high engine
speeds or high engine oil or coolant temperatures.
See ªRear Window Defoggerº later in this section for
more information.