Vehicle Care 10-15
Notice:Engine damage from
running the engine without
coolant is not covered by the
warranty.
Notice: Using coolant other than
DEX-COOL
®can cause premature
engine, heater core, or radiator
corrosion. In addition, the
engine coolant could require
changing sooner, at 50 000 km
(30,000 miles) or 24 months,
whichever occurs first.
Any repairs would not be
covered by the vehicle warranty.
Always use DEX-COOL
®
(silicate-free) coolant in the
vehicle.
Engine Coolant
The cooling system in your vehicle
is filled with DEX-COOL®engine
coolant. This coolant is designed to
remain in your vehicle for five years
or 240 000 km (150,000 miles),
whichever occurs first, if you add
only DEX-COOL
®extended life
coolant.
The following explains your cooling
system and how to add coolant
when it is low. If you have a problem
with engine overheating, see Engine
Overheating on page 10‑20.
A 50/50 mixture of clean, drinkable
water and DEX-COOL
®coolant will:
.Give freezing protection down
to −37°C (−34°F).
.Give boiling protection up to
129°C (265°F).
.Protect against rust and
corrosion.
.Help keep the proper engine
temperature.
.Let the warning lights and gages
work as they should.
Notice: Using coolant other than
DEX‐COOL
®can cause premature
engine, heater core, or radiator
corrosion. In addition, the engine
coolant may require changing
sooner, at the first maintenance
service after each 30,000 miles
(50 000 km) or 24 months,
whichever occurs first. Any
repairs would not be covered by
the vehicle warranty. Always use
DEX‐COOL
®(silicate‐free) coolant
in the vehicle.
ProCarManuals.com
10-16 Vehicle Care
What to Use
Use a mixture of one-half clean,
drinkable water and one-half
DEX-COOL
®coolant which will not
damage aluminum parts. If you use
this coolant mixture, you do not
need to add anything else.
{WARNING
Adding only plain water to the
cooling system can be
dangerous. Plain water, or some
other liquid such as alcohol, can
boil before the proper coolant
mixture will. The vehicle's coolant
warning system is set for the
proper coolant mixture. With plain
water or the wrong mixture, the
(Continued)
WARNING (Continued)
engine could get too hot but you
would not get the overheat
warning. The engine could catch
fire and you or others could be
burned. Use a 50/50 mixture of
clean, drinkable water and
DEX-COOL
®coolant.
Notice: If an improper coolant
mixture is used, the engine could
overheat and be badly damaged.
The repair cost would not be
covered by the vehicle warranty.
Too much water in the mixture
can freeze and crack the
engine, radiator, heater core,
and other parts. If you have to add coolant more
than four times a year, have your
dealer/retailer check your cooling
system.
Notice:
If extra inhibitors and/or
additives are used in the vehicle's
cooling system, the vehicle
could be damaged. Use only the
proper mixture of the engine
coolant listed in this manual
for the cooling system.
See Recommended Fluids and
Lubricants
on page 11‑7for
more information.
ProCarManuals.com
10-18 Vehicle Care
How to Add Coolant to the
Coolant Surge Tank
Notice:This vehicle has a
specific coolant fill procedure.
Failure to follow this procedure
could cause the 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
between the MIN and MAX lines,
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. See Engine Coolant
on
page 10‑15for more information.
{WARNING
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.
{WARNING
Adding only plain water to the
cooling system can be
dangerous. Plain water, or some
other liquid such as alcohol, can
boil before the proper coolant
mixture will. The vehicle's coolant
warning system is set for the
proper coolant mixture. With plain
water or the wrong mixture, the
engine could get too hot but you
would not get the overheat
warning. The engine could catch
fire 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.
ProCarManuals.com
Vehicle Care 10-21
If the overheat warning is no longer
on, the vehicle can be driven. Just
to be safe, drive slower for about
ten minutes. If the warning does not
come back on, drive normally.
If the warning continues and the
vehicle is not stopped, pull over,
stop, and park the vehicle
right away.
If there is still no sign of steam, idle
the engine for three minutes while
parked. If the warning continues,
turn off the engine and get everyone
out of the vehicle until it cools down.
The decision may be made to not lift
the hood but to get service help
right away.Power Steering Fluid
SeeEngine Compartment Overviewon page 10‑6for reservoir location.
When to Check Power Steering
Fluid
Power steering fluid is used in all
vehicles with V6 engines. Vehicles
with the 4-cylinder engine have
electric power steering and does not
use 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.
How to Check Power Steering
Fluid
To check the power steering fluid,
do the following:
1. Turn the key off and let the
engine compartment cool down.
2. Remove engine oil fill cap.
3. Slide engine cover rearward and lift to remove.
4. Wipe the cap and the top of the reservoir clean.
5. Unscrew the cap and wipe the dipstick with a clean rag.
6. Replace the cap and completely tighten it.
7. Remove the cap again and look at the fluid level on the dipstick.
The fluid level should be within the
area indicated on the dipstick when
the engine is cold.
ProCarManuals.com
Vehicle Care 10-25
Notice:
.Using the wrong fluid can
badly damage brake
hydraulic system parts.
For example, just a few
drops of mineral-based oil,
such as engine oil, in the
brake hydraulic system can
damage brake hydraulic
system parts so badly that
they will have to be replaced.
Do not let someone put in
the wrong kind of fluid.
.If brake fluid is spilled on
the vehicle's painted
surfaces, the paint finish can
be damaged. Be careful not
to spill brake fluid on the
vehicle. If you do, wash it off
immediately.
Battery
Refer to the replacement number
shown on the original battery label
when a new battery is needed.
See Engine Compartment Overview
on page 10‑6for battery location.
{DANGER
Battery posts, terminals, and
related accessories contain lead
and lead compounds, chemicals
known to the State of California to
cause cancer and reproductive
harm. Wash hands after handling.
Vehicle Storage
{WARNING
Batteries have acid that can burn
you and gas that can explode.
You can be badly hurt if you are
not careful. See Jump Starting
on
page 10‑74
for tips on working
around a battery without
getting hurt.
Infrequent Usage: Remove the
black, negative (−) cable from the
battery to keep the battery from
running down.
Extended Storage: Remove the
black, negative (−) cable from the
battery or use a battery trickle
charger.
ProCarManuals.com
11-2 Service and Maintenance
{WARNING
Performing maintenance work can
be dangerous. Some jobs can
cause serious injury. Perform
maintenance work only if you
have the required know-how and
the proper tools and equipment.
If in doubt, see your dealer/
retailer to have a qualified
technician do the work. See
Doing Your Own Service Work
on
page 10‑4
.
At your General Motors dealer/
retailer, you can be certain that you
will receive the highest level of
service available. Your dealer/
retailer has specially trained service
technicians, uses genuine GM
replacement parts, as well as, up to
date tools and equipment to ensure
fast and accurate diagnostics. The proper replacement parts,
fluids, and lubricants to use are
listed in
Recommended Fluids and
Lubricants
on page 11‑7and
Maintenance Replacement Partson
page 11‑9. We recommend the use
of genuine parts from your dealer/
retailer.
Rotation of New Tires
To maintain ride, handling, and
performance of the vehicle, it is
important that the first rotation
service for new tires be performed
when they have 8 000 to 13 000 km
(5,000 to 8,000 miles). See Tire
Rotation on page 10‑57.
Scheduled
Maintenance
When the Change Engine Oil
Light Displays
Change engine oil and filter. See
Engine Oilon page 10‑8. An
Emission Control Service.
When the change engine oil light
displays, service is required for the
vehicle as soon as possible, within
the next 1 000 km/600 miles.
If driving under the best conditions,
the engine oil life system might not
indicate the need for vehicle service
for more than a year. The engine oil
and filter must be changed at least
once a year and the oil life system
must be reset. Your dealer/retailer
has trained service technicians who
will perform this work and reset the
system. If the engine oil life system
is reset accidentally, service the
vehicle within 5 000 km/3,000 miles
since the last service. Reset the oil
ProCarManuals.com
Service and Maintenance 11-3
life system whenever the oil is
changed. SeeEngine Oil Life
System on page 10‑10.
When the change engine oil light
displays, certain services, checks,
and inspections are required. The
services described for
Maintenance Ishould be performed
at every engine oil change.
The services described for
Maintenance IIshould be
performed when:
.Maintenance Iwas performed
the last time the engine oil was
changed.
.It has been 10 months or more
since the change engine oil light
has displayed or since the last
service.
Maintenance I
.Change engine oil and filter. See
Engine Oilon page 10‑8.An
Emission Control Service.
.Engine coolant level check. See
Engine Coolant on page 10‑15.
.Windshield washer fluid level
check. See Washer Fluidon
page 10‑22.
.Tire inflation check. See Tire
Pressure on page 10‑50.
.Tire wear inspection. See Tire
Inspection on page 10‑57.
.Rotate tires. See Tire Rotationon page 10‑57.
.Fluids visual leak check (or
every 12 months, whichever
occurs first). A leak in any
system must be repaired and the
fluid level checked.
.Engine air cleaner filter
inspection (vehicles driven in
dusty conditions only). See
Engine Air Cleaner/Filter
on
page 10‑12.
.Brake system inspection (or
every 12 months, whichever
occurs first).
Maintenance II
.Perform all services described in
MaintenanceI.
.Steering and suspension
inspection. Visual inspection for
damaged, loose, or missing
parts or signs of wear.
.Engine cooling system
inspection. Visual inspection of
hoses, pipes, fittings, and
clamps and replacement,
if needed.
.Windshield wiper blade
inspection for wear, cracking,
or contamination and windshield
and wiper blade cleaning,
if contaminated. See Exterior
Care
on page 10‑82. Worn or
damaged wiper blade
replacement. See Wiper Blade
Replacement on page 10‑29.
ProCarManuals.com
11-4 Service and Maintenance
.Body hinges and latches, key
lock cylinders, folding seat
hardware, and sunroof
(if equipped) lubrication. See
Recommended Fluids and
Lubricants
on page 11‑7. More
frequent lubrication may be
required when vehicle is
exposed to a corrosive
environment. Applying silicone
grease on weatherstrips with a
clean cloth makes them last
longer, seal better, and not stick
or squeak.
.Restraint system component
check. See Safety System
Check on page 3‑23.
.Automatic transmission fluid
level check and adding fluid,
if needed. See Automatic
Transmission Fluid
on
page 10‑12.
.Engine air cleaner filter
inspection. See Engine Air
Cleaner/Filter on page 10‑12.
.Passenger compartment air filter
replacement (or every
12 months, whichever occurs
first). More frequent replacement
may be required if vehicle is
driven regularly under dusty
conditions.
Additional Required Services
At Each Fuel Stop
.Engine oil level check. See
Engine Oil on page 10‑8.
.Engine coolant level check. See
Engine Coolant on page 10‑15.
.Windshield washer fluid level
check. See Washer Fluidon
page 10‑22.
Once a Month
.Tire inflation check. See Tire
Pressure on page 10‑50.
.Tire wear inspection. See Tire
Inspection on page 10‑57. Once a Year
.See
Starter Switch Checkon
page 10‑27.
.See Automatic Transmission
Shift Lock Control System
Check on page 10‑28.
.See Ignition Transmission Lock
Check on page 10‑28.
.See Park Brake and P (Park)
Mechanism Checkon
page 10‑29.
.Engine cooling system and
pressure cap pressure check.
Radiator and air conditioning
condenser outside cleaning. See
Cooling System on page 10‑14.
.Exhaust system and nearby heat
shields inspection for loose or
damaged components.
.Accelerator pedal check for
damage, high effort, or binding.
Replace if needed.
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