engine coolant SATURN VUE HYBRID 2007 User Guide

Checking Coolant
The surge tank is located on the driver’s side
of the engine compartment. SeeEngine
Compartment Overview on page 296for more
information on location.
{CAUTION:
Turning the surge tank pressure cap when
the engine and radiator are hot can allow
steam and scalding liquids to blow out
and burn you badly. Never turn the surge
tank pressure cap — even a little — when
the engine and radiator are hot.
The vehicle must be on a level surface. When
your engine is cold, the coolant level should be
at the COLD FILL line. When your engine is warm,
the level should be at the COLD FILL line or a
little higher.
Adding Coolant
If you need more coolant, add the proper
DEX-COOL®coolant mixture at the surge tank,
but only when the engine is cool. SeeEngine
Overheating on page 309for instructions on
“How to Add Coolant to the Coolant Surge Tank.”
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{CAUTION:
You can be burned if you spill coolant on
hot engine parts. Coolant contains
ethylene glycol, and it will burn if the
engine parts are hot enough. Do not spill
coolant on a hot engine.
When replacing the pressure cap, make sure it is
hand-tight and fully seated.
Coolant Surge Tank Pressure Cap
Notice:If the pressure cap is not tightly
installed, coolant loss and possible engine
damage may occur. Be sure the cap is properly
and tightly secured.
If you need to replace your coolant surge tank
pressure cap, see your retailer.
Engine Overheating
You will nd a coolant temperature warning light
on the vehicle’s instrument panel. SeeEngine
Coolant Temperature Warning Light on page 172.
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 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.
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.
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Cooling System
When you decide it is safe to lift the hood, here is
what you will see:
A. Electric Engine Fan
B. Coolant Surge Tank with Pressure Cap{CAUTION:
An electric engine cooling fan under the
hood 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.
If the coolant inside the coolant surge tank is
boiling, do not do anything else until it cools
down. The vehicle should be parked on a
level surface.
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The coolant level should be at the COLD FILL
line. If it is not, you may have a leak at the radiator
hoses, heater hoses, radiator, water pump, or
somewhere else in the cooling system.
{CAUTION:
Heater and radiator hoses, and other
engine parts, can be very hot. Do not
touch them. If you do, you can be burned.
Do not run the engine if there is a leak.
If you run the engine, it could lose all
coolant. That could cause an engine re,
and you could be burned. Get any leak
xed before you drive the vehicle.If there seems to be no leak, with the engine on,
check to see if the electric engine cooling fan
is running. If the engine is overheating, the
fan should be running. If it is not, your vehicle
needs service. Turn off the engine.
Notice:Engine damage from running your
engine without coolant is not covered by
your warranty.
Notice:Using coolant other than DEX-COOL®
may cause premature engine, heater core,
or radiator corrosion. In addition, the engine
coolant could require changing sooner, at
30,000 miles (50 000 km) or 24 months,
whichever occurs rst. Any repairs would not
be covered by your warranty. Always use
DEX-COOL
®(silicate-free) coolant in your
vehicle.
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How to Add Coolant to the Coolant
Surge Tank
Notice:This vehicle has a specic coolant ll
procedure. Failure to follow this procedure
could cause your engine to overheat and
be severely damaged.
If you have not found a problem yet, check to see
if coolant is visible in the surge tank. If coolant
is visible but the coolant level is not at the COLD
FILL line, add a 50/50 mixture of clean, drinkable
water and DEX-COOL
®coolant at the coolant
surge tank, but be sure the cooling system,
including the coolant surge tank pressure cap,
is cool before you do it. SeeEngine Coolant
on page 306for more information.
{CAUTION:
Steam and scalding liquids from a hot
cooling system can blow out and burn
you badly. They are under pressure, and if
you turn the coolant surge tank pressure
cap — even a little — they can come out at
high speed. Never turn the cap when the
cooling system, including the coolant
surge tank pressure cap, is hot. Wait for
the cooling system and coolant surge
tank pressure cap to cool if you ever have
to turn the pressure cap.
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{CAUTION:
Adding only plain water to your cooling
system can be dangerous. Plain water, or
some other liquid such as alcohol, can
boil before the proper coolant mixture will.
Your vehicle’s coolant warning system is
set for the proper coolant mixture. With
plain water or the wrong mixture, your
engine could get too hot but you would
not get the overheat warning. Your engine
could catch re and you or others could
be burned. Use a 50/50 mixture of clean,
drinkable water and DEX-COOL
®coolant.Notice:In cold weather, water can freeze and
crack the engine, radiator, heater core and
other parts. Use the recommended coolant and
the proper coolant mixture.
{CAUTION:
You can be burned if you spill coolant on
hot engine parts. Coolant contains
ethylene glycol and it will burn if the
engine parts are hot enough. Do not spill
coolant on a hot engine.
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4. With the coolant surge tank pressure cap off,
start the engine and let it run until you can
feel the upper radiator hose getting hot.
Watch out for the engine cooling fan.By this time, the coolant level inside the
coolant surge tank may be lower. If the level
is lower, add more of the proper DEX-COOL
®
coolant mixture to the coolant surge tank
until the level reaches the COLD FILL line.
5. Then replace the pressure cap. Be sure the
pressure cap is hand-tight.
Check the level in the surge tank when the cooling
system has cooled down. If the coolant is not at
the proper level, repeat Steps 1 through 3 and
reinstall the pressure cap. If the coolant still is not
at the proper level when the system cools down
again, see your retailer.
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Windshield Washer Fluid
What to Use
When you need windshield or rear window washer
uid, be sure to read the manufacturer’s
instructions before use. If you will be operating
your vehicle in an area where the temperature may
fall below freezing, use a uid that has sufficient
protection against freezing.
Adding Windshield Washer Fluid
Open the cap with the
washer symbol on it.
Add washer uid
until the tank is full. See
Engine Compartment
Overview on page 296
for reservoir location.Notice:
When using concentrated washer uid,
follow the manufacturer’s instructions
for adding water.
Do not mix water with ready-to-use washer
uid. Water can cause the solution to
freeze and damage your washer uid tank
and other parts of the washer system.
Also, water does not clean as well
as washer uid.
Fill your washer uid tank only
three-quarters full when it is very cold.
This allows for expansion if freezing
occurs, which could damage the tank if it
is completely full.
Do not use engine coolant (antifreeze) in
your windshield washer. It can damage
your washer system and paint.
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Fuses Usage
REAR DEFOG Rear Defogger
COOL HI Cooling Fan High
LH HDLP Driver’s Side Headlamp
RR WIPER Rear Wiper
ABS Anti-lock Brake System Module
IGN/INJEngine Ignition Module,
Fuel Injectors
PWR WDW Power Window Relay and Sunroof
CIGAR LITER Cigarette Lighter
HVAC
BLOWERClimate Control System
Blower Motor
RH HDLP Passenger’s Side Headlamp
FRT WIPER Front Wiper
ETC Electronic Throttle Control
SUNROOF Sunroof Module
BRAKE StoplampsFuses Usage
PWR TRAINEngine Control Module, Transaxle
Control Module, Powertrain Control
Module
BACKUPLow Coolant Switch, Back-up
Lamps, Vehicle Speed Sensor
(Manual), Transaxle Range Switch
HTD SEATS Heated Seats
IGN Ignition Switch
COOL LO Cooling Fan Low
A/C CLUTCH Air Conditioning Clutch
FUEL PUMP Fuel Pump
AUX OUTLETS Auxiliary Power Outlets
ESCM/CANV Electric Storage Control Module
ABS Anti-lock Brake System Ignition
PWR SEAT Power Seats
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Hybrid Underhood Fuse Block
The hybrid underhood fuse block is located under
the engine cover on the driver’s side of the
engine compartment. To access the fuse block,
remove the engine cover by pulling up on the
cover and lifting it off the engine. The hybrid
underhood fuse block is the smaller of the two fuse
blocks in the engine compartment, and is located
near the front of the vehicle.
Fuses Usage
PUMPS Coolant Pumps (2)
HILL HOLD Hill Hold Valves
TRANS PUMP Transaxle Pump
STRTR Starter Motor
Relays Usage
HILL HOLD Hill Hold Valves
TRANS PUMP Transaxle Pump
STRTR Starter Motor
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