2003 CHEVROLET CORVETTE open hood

Engine Coolant Heater
(Canada Only)
The engine coolant heater is located on the driver's side
of the engine under the manifold.
In very cold weather, 0ÉF (-18ÉC) or colder, the engine
coolant heater can help. You'll get easier starting
and better fuel economy during engine warm-up.
Usually, the coolant heater should be plugged in a
minimum of four hours prior to starting your vehicle. At
temperatures above 32ÉF (0ÉC), use of the coolant
heater is not required.
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 ¯uid 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 ®re. You could be seriously
injured. Plug the cord into a properly grounded
three-prong 110-volt AC outlet. If the cord
won't reach, use a heavy-duty three-prong
extension cord rated for at least 15 amps.
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You can open the doors manually using the knob next
to the headlamp assembly. Turn the knob
counterclockwise until the doors are open. Turn the
knob clockwise to close the doors manually.
The headlamp doors should be open when driving in icy
or snowy conditions to prevent the doors from freezing
closed and when washing the vehicle to help clean
the headlamps.
Notice:In order to avoid possible contact of the
hood to the headlamp doors, either take care
in raising the hood with the headlamps up, or turn
off the headlamps prior to opening the hood.
Daytime Running Lamps
Daytime Running Lamps (DRL) can make it easier for
others to see the front of your vehicle during the
day. DRL can be helpful in many different driving
conditions, but they can be especially helpful in the short
periods after dawn and before sunset. Fully functional
daytime running lamps are required on all vehicles
®rst sold in Canada.The DRL system will make the front turn signal lamps
come on when the following conditions are met:
·The ignition is on,
·the exterior lamp switch is off and
·the parking brake is released.
When the DRL are on, only the front turn signal lamps
will be on. The headlamps, taillamps, sidemarker
and other lamps won't be on. Your instrument panel
won't be lit up either.
To idle the vehicle with the DRL off, set the parking
brake while the ignition is in OFF. Then start the vehicle.
The DRL, headlamps and parking lamps will stay off
until you release the parking brake.
As with any vehicle, you should turn on the regular
headlamp system when you need it.
3-13

Hood Release
Notice:In order to avoid possible contact of the
hood to the headlamp doors, either take care
in raising the hood with the headlamps up, or turn
off the headlamps prior to opening the hood.
To open the hood, do the following:
1. Pull the handle
located inside the
vehicle below
the instrument panel
on the driver's side.
2. Go to the side of the vehicle and pull up on the rear
edge of the hood, near the windshield.
Before closing the hood, be sure all the ®ller caps are
on properly. Then, just pull the hood down and
close it ®rmly.
5-11

Engine Compartment Overview
When you open the hood, you'll see the following:
5-12

If Steam Is Coming From Your Engine
{CAUTION:
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
CAUTION: (Continued)
CAUTION: (Continued)
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 ®re. You
or others could be badly burned. Stop your
engine if it overheats, and get out of the
vehicle until the engine is cool.
See ªOverheated Engine Protection Operating
Modeº in the Index for information on driving
to a safe place in an emergency.
Notice:If your engine catches ®re because you
keep driving with no coolant, your vehicle can
be badly damaged. The costly repairs would not be
covered by your warranty. See ªOverheated
Engine Protection Operating Modeº in the Index for
information on driving to a safe place in an
emergency.
5-27

If No Steam Is Coming From Your
Engine
If you get an engine overheat warning but see or hear
no steam, the problem may not be too serious.
Sometimes the engine can get a little too hot when you:
·Climb a long hill on a hot day.
·Stop after high-speed driving.
·Idle for long periods in traffic.
If you get the overheat warning with no sign of steam,
try this for a minute or so:
1. In heavy traffic, let the engine idle in NEUTRAL (N)
while stopped. If it is safe to do so, pull off the road,
shift to PARK (P) or NEUTRAL (N) and let the
engine idle.
2. Turn on your heater to full hot at the highest fan
speed and open the window as necessary.If you no longer have the overheat warning, you can
drive. Just to be safe, drive slower for about 10 minutes.
If the warning doesn't come back on, you can drive
normally.
If the warning continues and you are not stopped, pull
over, stop, and park your vehicle right away.
If there's still no sign of steam, you can idle the engine
for three minutes while you're parked. If you still
have the warning,turn off the engine and get everyone
out of the vehicleuntil it cools down. Also, see
ªOverheated Engine Protection Operating Modeº listed
previously in this section.
You may decide not to lift the hood but to get service
help right away.
5-28

4. Open the hoods and locate the batteries. Find the
positive (+) and negative (-) terminal locations on
each vehicle. See
Engine Compartment Overview
on page 5-12for more information on location.
{CAUTION:
An electric fan can start up even when the
engine is not running and can injure you. Keep
hands, clothing and tools away from any
underhood electric fan.
{CAUTION:
Using a match near a battery can cause battery
gas to explode. People have been hurt doing
this, and some have been blinded. Use a
¯ashlight if you need more light.
Be sure the battery has enough water. You
don't need to add water to the ACDelco
ž
battery installed in your new vehicle. But if a
CAUTION: (Continued)
CAUTION: (Continued)
battery has ®ller caps, be sure the right
amount of ¯uid is there. If it is low, add water
to take care of that ®rst. If you don't, explosive
gas could be present.
Battery ¯uid contains acid that can burn you.
Don't get it on you. If you accidentally get it in
your eyes or on your skin, ¯ush the place with
water and get medical help immediately.
{CAUTION:
Fans or other moving engine parts can injure
you badly. Keep your hands away from moving
parts once the engine is running.
5-42

2. Remove the screws on each side of the
headlamp bezel.
3. Open the hood.
4. To remove the bezel, pull the sides slightly outward
and tilt the bezel forward. Pull the clip centered
above the lens outward. Be careful not to scratch
the paint on the vehicle.5. Reach behind the lamp and turn the bulb
counterclockwise to remove it. Don't touch the
halogen bulbs. The inner bulb is the high beam and
the outer bulb is the low beam.
6. Disconnect the desired bulb from the wiring
harness.
7. Reverse the steps listed previously with a new bulb.
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