2007 CHEVROLET CORVETTE engine overheat

2. When the engine begins cranking, let go of
the button and the engine cranks automatically
until it starts. If the battery in the keyless
access transmitter is weak, the DIC displays
FOB BATTERY LOW. You can still drive
the vehicle.
See “Battery Replacement” underKeyless
Access System Operation on page 73for more
information. If the fob battery is dead, you need
to insert the fob into the fob slot to enable
engine starting. See “No Fobs Detected” under
DIC Warnings and Messages on page 214.
3. Do not race the engine immediately after
starting it. Operate the engine and transmission
gently until the oil warms up and lubricates all
moving parts.
4. If the engine does not start and no DIC
message is displayed, wait 15 seconds
before trying again to let the cranking motor
cool down.
If the engine does not start after 5-10 seconds,
especially in very cold weather (below 0°F
or−18°C), it could be ooded with too much
gasoline. Try pushing the accelerator pedalall the way to the oor while cranking for
up to 15 seconds maximum. Wait at least
15 seconds between each try, to allow the
cranking motor to cool down. When the engine
starts, let go of the accelerator. If the vehicle
starts briey but then stops again, do the
same thing. This clears the extra gasoline
from the engine.
Notice:Cranking the engine for long periods
of time, by pressing the START button
immediately after cranking has ended, can
overheat and damage the cranking motor,
and drain the battery. Wait at least 15 seconds
between each try, to allow the cranking
motor to cool down.
Your vehicle has a Computer-Controlled Cranking
System. This feature assists in starting the engine
and protects components. Once cranking has
been initiated, the engine continues cranking for a
few seconds or until the vehicle starts. If the engine
does not start, cranking automatically stops after
15 seconds to prevent cranking motor damage.
To prevent gear damage, this system also prevents
cranking if the engine is already running.
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To Use The Engine Coolant Heater
1. Turn off the engine.
2. Open the hood and unwrap the electrical cord.
The electrical cord is located on the driver’s
side of the engine compartment, in front of the
coolant surge tank.
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 re. You
could be seriously injured. Plug the cord
into a properly grounded three-prong
110-volt AC outlet. If the cord will not
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 do
not 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 will be parking
your vehicle. The dealer can give you the best
advice for that particular area.
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Downshifting (Manual Transmission)
Do not downshift into the gear shown below
at a speed greater than shown in the table:
FIRST (1) 50 mph (80 km/h)
SECOND (2) 74 mph (119 km/h)
THIRD (3) 101 mph (163 km/h)
FOURTH (4) 130 mph (209 km/h)
Notice:If you skip more than one gear when
you downshift, or if you race the engine when
you release the clutch pedal while downshifting,
you could damage the engine, clutch, driveshaft
or the transmission. Do not skip gears or race
the engine when downshifting.
The six-speed transmission has a spring that
centers the shift lever near THIRD (3) and
FOURTH (4). This spring helps you know which
gear you are in when you are shifting. Be careful
when shifting from FIRST (1) to SECOND (2)
or downshifting from SIXTH (6) to FIFTH (5).The spring will try to pull the shift lever toward
FOURTH (4) and THIRD (3). Make sure you move
the lever into SECOND (2) or FIFTH (5). If you let
the shift lever move in the direction of the pulling,
you may end up shifting from FIRST (1) to
FOURTH (4) or from SIXTH (6) to THIRD (3).
Parking Brake
The parking brake lever is located to the right of
the center console.
To set the parking brake, hold the brake pedal
down. Pull the parking brake lever up. If the ignition
is on, the brake system warning light will come on.
To release the parking brake, hold the brake pedal
down. Then push the release button in as you
move the parking brake lever all the way down.
Notice:Driving with the parking brake on
can overheat the brake system and cause
premature wear or damage to brake system
parts. Verify that the parking brake is fully
released and the brake warning light is
off before driving.
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Shifting Into Park (P)
(Automatic Transmission)
{CAUTION:
It can be dangerous to get out of your
vehicle if the shift lever is not fully in
PARK (P) with the parking brake rmly
set. Your vehicle can roll. If you have left
the engine running, the vehicle can move
suddenly. You or others could be injured.
To be sure your vehicle will not move,
even when you are on fairly level ground,
use the steps that follow.
1. Hold the brake pedal down with your right foot
and set the parking brake.
SeeParking Brake on page 102for more
information.
2. Move the shift lever into PARK (P) by holding in
the button on the lever and pushing the lever all
the way toward the front of the vehicle.
3. Press the Acc. button (ignition switch) to turn
the engine off.
Leaving Your Vehicle With the Engine
Running (Automatic Transmission)
{CAUTION:
It can be dangerous to leave your vehicle
with the engine running. Your vehicle could
move suddenly if the shift lever is not fully
in PARK (P) with the parking brake rmly
set. And, if you leave the vehicle with the
engine running, it could overheat and even
catch re. You or others could be injured.
Do not leave your vehicle with the engine
running.
If you have to leave your vehicle with the engine
running, be sure your vehicle is in PARK (P) and
your parking brake is rmly set before you leave it.
After you have moved the shift lever into PARK (P),
hold down the regular brake pedal. See if you can
move the shift lever away from PARK (P) without
rst pulling it toward you. If you can, it means that
the shift lever was not fully locked into PARK (P).
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Engine Coolant Temperature Gage
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.
SeeEngine Overheating on page 350for more
information.
Tire Pressure Light
This light will come on
briey when you turn
the ignition on.
This light will also come on when one or more of
your tires are signicantly underinated.
A LOW TIRE PRESSURE message in the Driver
Information Center (DIC) will accompany the light,
seeDIC Warnings and Messages on page 214
Stop and check your tires as soon as it is safe to do
so. If underinated, inate to the proper pressure.
SeeTires on page 378for more information.
This light will ash for about 60 seconds and
then turn on solid if a problem is detected with
the Tire Pressure Monitor system.
SeeTire Pressure Monitor System on page 389
for more information.
United StatesCanada
199

CHANGE ENGINE OIL
This message displays when the life of the engine
oil has expired. SeeScheduled Maintenance on
page 433. After an oil change, the engine oil
life system must be reset. See “Engine Oil Life”
underDIC Controls and Displays on page 208.
Also, seeEngine Oil on page 333andEngine Oil
Life System on page 340for more information.
CHECK BRAKE FLUID
This message displays, a chime sounds, and the
brake system warning light on the instrument
panel cluster turns on if the ignition is on to inform
the driver that the brake uid level is low. See
Brake System Warning Light on page 196. Have
the brake system serviced by your dealer as
soon as possible. SeeBrakes on page 361.
CHECK COOLANT LEVEL
This message displays when the engine coolant
level is low. Have the cooling system serviced
by your dealer as soon as possible. SeeEngine
Coolant on page 347.
CHECK GAS CAP
This message displays if the fuel cap has not
been fully tightened. Check the fuel cap to make
sure that it is on properly. Once tightened, it takes
at least one overnight park to reset or clear this
message. If both the CHECK GAS CAP message
and the malfunction indicator lamp in the
instrument panel cluster are on, you may need to
see your dealer for service. SeeMalfunction
Indicator Lamp on page 200for more information.
CHECK OIL LEVEL
This message displays and two chimes sound if
the oil level in the vehicle is low. Once the vehicle
senses a change in the engine oil level, the
light remains off.
If this message appears after starting the engine,
the engine oil level may be too low. You may
need to add oil. SeeEngine Overheating on
page 350.
To acknowledge the message, press the RESET
button. The message reappears every 10 minutes
until this condition changes.
217

CLOSE TRUNK TO MOVE TOP
This message displays and a chime sounds if the
trunk is open while you are trying to operate
the convertible top. Make sure the trunk is closed
before operating the convertible top. See
Convertible Top (Manual) on page 139or
Convertible Top (Power) on page 146.
COMPETITIVE DRIVING MODE
This message displays and a short chime sounds
when the Competitive Driving mode is selected.
The instrument panel cluster light will not be
on when the Competitive Driving mode is selected.
The Traction Control System (TCS) will not be
operating while in the Competitive Driving mode.
Adjust your driving accordingly. SeeRacing or
Other Competitive Driving on page 292for more
information.
COOLANT OVER TEMPERATURE
This message displays and a chime sounds if the
engine coolant exceeds 255°F (124°C). If you have
been operating your vehicle under normal driving
conditions, pull off 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
temperature gage on the instrument panel cluster.
SeeEngine Overheating on page 350,DIC
Controls and Displays on page 208, andEngine
Coolant Temperature Gage on page 199.
To acknowledge the message, press the RESET
button. The message reappears and a chime
sounds every minute until this condition changes.
If you do not press the RESET button, the
message remains on until the condition changes.
CRUISE DISENGAGED
This message displays briey when you disengage
the cruise control system by stepping on the brake
on an automatic transmission vehicle or the clutch
on a manual transmission vehicle, or by turning off
the cruise control switch. SeeCruise Control on
page 164for more information.
218

ENGINE DRAG CONTROL ACTIVE
This message displays when engine drag control
is active. When driving in a lower gear in rainy,
snowy, or icy conditions and then letting up on the
accelerator or downshifting, the rear wheels
may begin to slip and this message displays. This
message stays on for a few seconds following
the engine drag control event.
ENGINE OVERHEATED – STOP
ENGINE
This message displays and a continuous chime
sounds when the engine has overheated. Stop and
turn the engine off immediately to avoid severe
engine damage. SeeEngine Overheating on
page 350.
ENGINE PROTECTION REDUCE
ENGINE RPM
This message displays if the engine oil
temperature exceeds 320°F (160°C). Check the
engine coolant temperature and engine oil level. If
the engine is too hot, seeEngine Overheating
on page 350. Your vehicle may need service, so
see your dealer.You can monitor the oil temperature with the
gages button on the DIC. SeeDIC Controls and
Displays on page 208.
Multiple chimes sound when this message is
displayed. This message remains displayed and
active until the issue is resolved.
HEADLAMPS SUGGESTED
This message displays if it is dark enough outside
and the headlamps and the Twilight Sentinel®
controls are off. This message informs the driver
that turning on the exterior lamps is recommended.
It has become dark enough outside to require
the headlamps and/or other exterior lamps.
HIGH TIRE PRESSURE
This message displays when one or more of the
tires is over-inated. This message also displays
LEFT FRONT, RIGHT FRONT, LEFT REAR, or
RIGHT REAR to indicate which tire is affected. 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 the RESET
button. If a tire pressure message appears on the
DIC, stop as soon as you can.
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