engine coolant BUICK ENCLAVE 2008 Owner's Guide

If Steam Is Coming From The Engine
Compartment
{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. 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 the vehicles engine is
overheated, the liquids in it can catch re. You or
others could be badly burned. Stop the engine if it
overheats, and get out of the vehicle until the
engine is cool.
SeeOverheated Engine Protection Operating Mode
on page 5-37for information on driving to a safe
place in an emergency.
If No Steam Is Coming From The
Engine Compartment
If an engine overheat warning is displayed but no steam
can be seen or heard, the problem may not be too
serious. Sometimes the engine can get a little too hot
when the vehicle:
Climbs a long hill on a hot day.
Stops after high-speed driving.
Idles for long periods in traffic.
Tows a trailer.
If the overheat warning is displayed with no sign of
steam:
1. Turn the air conditioning off.
2. Turn the heater on to the highest temperature and
to the highest fan speed. Open the windows as
necessary.
3. In heavy traffic, let the engine idle in N (Neutral)
while stopped. If it is safe to do so, pull off the
road, shift to P (Park) or N (Neutral) and let
the engine idle.
5-36

If the temperature overheat gage is no longer in the
overheat zone or an overheat warning no longer
displays, the vehicle can be driven. Continue to drive
the vehicle slow for about 10 minutes. Keep a safe
vehicle distance from the car in front of you. If the
warning does not come back on, continue to drive
normally.
If the warning continues, pull over, stop, and park the
vehicle right away.
If there is no sign of steam, idle the engine for
three minutes while parked. If the warning is still
displayed, turn off the engine until it cools down. Also,
see “Overheated Engine Protection Operating Mode”
later in this section.Overheated Engine Protection
Operating Mode
If an overheated engine condition exists and the
message ENGINE OVERHEATED STOP ENGINE is
displayed, an overheat protection mode which alternates
ring groups of cylinders helps prevent engine damage.
In this mode, you will notice a loss in power and engine
performance. This operating mode allows your vehicle
to be driven to a safe place in an emergency. Driving
extended miles (km) and/or towing a trailer in the
overheat protection mode should be avoided.
Notice:After driving in the overheated engine
protection operating mode, to avoid engine damage,
allow the engine to cool before attempting any
repair. The engine oil will be severely degraded.
Repair the cause of coolant loss, change the oil
and reset the oil life system. SeeEngine Oil
on page 5-17.
5-37

Windshield Washer Fluid
What to Use
When you need windshield 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 Washer Fluid
Open the cap with the
washer symbol on it.
Add washer uid until the
tank is full. SeeEngine
Compartment Overview on
page 5-14for 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 the washer uid tank only three-quarters
full when it is very cold. This allows for uid
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 the vehicle’s
windshield washer system and paint.
5-39

Scheduled Maintenance
Service MaintenanceIMaintenanceII
Change engine oil and lter. SeeEngine Oil on page 5-17. Reset oil life
system. SeeEngine Oil Life System on page 5-20.An Emission Control
Service.••
Visually check for any leaks or damage.See footnote (k).••
Inspect engine air cleaner lter. If necessary, replace lter. SeeEngine Air
Cleaner/Filter on page 5-22.See footnote (m).•
Rotate tires and check ination pressures and wear. SeeTire Inspection and
Rotation on page 5-72and “Tire Wear Inspection” inAt Least Once a Month
on page 6-9.••
Inspect brake system.See footnote (a).••
Check engine coolant and windshield washer uid levels and add uid as
needed.••
Perform any needed additional services. See “Additional Required Services” in
this section.••
Inspect suspension and steering components.See footnote (b).•
Inspect engine cooling system.See footnote (c).•
Inspect wiper blades.See footnote (d).•
Inspect restraint system components.See footnote (e).•
Lubricate body components.See footnote (f).•
Replace passenger compartment air lter.See footnote (g).•
6-5

(e)Make sure the safety belt reminder light and safety
belt assemblies are working properly. Look for any other
loose or damaged safety belt system parts. If you see
anything that might keep a safety belt system from doing
its job, have it repaired. Have any torn or frayed safety
belts replaced. Also see Checking the Restraint Systems
on page 1-74.
(f)Lubricate all key lock cylinders. Lubricate all
hinges and latches, including those for the hood, rear
compartment, glove box door, and console door. More
frequent lubrication may be required when exposed to
a corrosive environment. Applying silicone grease on
weatherstrips with a clean cloth will make them last
longer, seal better, and not stick or squeak.
(g)If driving regularly under dusty conditions, the filter
may require replacement more often.
(h)Change automatic transmission fluid and filter if the
vehicle is mainly driven under one or more of these
conditions:
In heavy city traffic where the outside temperature
regularly reaches 90°F (32°C) or higher.
In hilly or mountainous terrain.
When doing frequent trailer towing.
Uses such as found in taxi, police, or delivery
service.(j)Drain, flush, and refill cooling system. This service
can be complex; you should have your dealer/retailer
perform this service. See Engine Coolant (4.6L Engine)
on page 5-28 or Engine Coolant (3.9L Engine) on
page 5-32 for what to use. Inspect hoses. Clean
radiator, condenser, pressure cap, and filler neck.
Pressure test the cooling system and pressure cap.
(k)A fluid loss in any vehicle system could indicate a
problem. Have the system inspected and repaired
and the fluid level checked. Add fluid if needed.
(l)Visually inspect belt for fraying, excessive cracks, or
obvious damage. Replace belt if necessary.
(m)If driving regularly under dusty conditions, inspect
the filter at each engine oil change.
Owner Checks and Services
These owner checks and services should be performed
at the intervals specied to help ensure vehicle safety,
dependability, and emission control performance. Your
dealer/retailer can assist with these checks and services.
Be sure any necessary repairs are completed at once.
Whenever any uids or lubricants are added to the
vehicle, make sure they are the proper ones, as shown
inRecommended Fluids and Lubricants on page 6-12.
6-8

At Each Fuel Fill
It is important to perform these underhood checks at
each fuel fill.
Engine Oil Level Check
Notice:It is important to check the engine oil
regularly and keep it at the proper level. Failure to
keep the engine oil at the proper level can cause
damage to the engine not covered by the vehicle
warranty.
Check the engine oil level and add the proper oil if
necessary. SeeEngine Oil on page 5-17.
Engine Coolant Level Check
Check the engine coolant level and add DEX-COOL®
coolant mixture if necessary. SeeEngine Coolant
(4.6L Engine) on page 5-28orEngine Coolant
(3.9L Engine) on page 5-32.
Windshield Washer Fluid Level Check
Check the windshield washer uid level in the windshield
washer uid reservoir and add the proper uid if
necessary.
At Least Once a Month
Tire Ination Check
Inspect the vehicle’s tires and make sure they are
inated to the correct pressures. Do not forget to check
the spare tire. SeeInflation - Tire Pressure on page 5-66.
Check to make sure the spare tire is stored securely.
SeeChanging a Flat Tire on page 5-82.
Tire Wear Inspection
Tire rotation may be required for high mileage highway
drivers prior to the Engine Oil Life System service
notication. Check the tires for wear and, if necessary,
rotate the tires. SeeTire Inspection and Rotation on
page 5-72.
6-9

Recommended Fluids and
Lubricants
Fluids and lubricants identied below by name, part
number, or specication can be obtained from your
dealer/retailer.
Usage Fluid/Lubricant
Engine OilEngine oil which meets GM
Standard GM6094M and displays
the American Petroleum Institute
Certied for Gasoline Engines
starburst symbol. To determine the
proper viscosity for your vehicle’s
engine, seeEngine Oil on page 5-17.
Engine Coolant50/50 mixture of clean, drinkable
water and use only DEX-COOL
®
Coolant. SeeEngine Coolant
(4.6L Engine) on page 5-28or
Engine Coolant (3.9L Engine)
on page 5-32.
Hydraulic Brake
SystemDelco
®Supreme 11 Brake Fluid or
equivalent DOT-3 brake uid.
Windshield
WasherOptikleen
®Washer Solvent.
Usage Fluid/Lubricant
Parking Brake
Cable GuidesChassis Lubricant
(GM Part No. U.S. 12377985, in
Canada 88901242) or lubricant
meeting requirements of NLGI #2,
Category LB or GC-LB.
Power Steering
SystemGM Power Steering Fluid
(GM Part No. U.S. 89021184,
in Canada 89021186).
Automatic
TransmissionDEXRON
®-VI Automatic
Transmission Fluid.
Key Lock
CylindersMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241,
in Canada 10953474).
Hood Latch
Assembly,
Secondary
Latch, Pivots,
Spring Anchor,
and Release
PawlLubriplate Lubricant Aerosol
(GM Part No. U.S. 12346293,
in Canada 992723) or lubricant
meeting requirements of NLGI #2,
Category LB or GC-LB.
Hood and Door
HingesMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241,
in Canada 10953474).
Weatherstrip
ConditioningWeatherstrip Lubricant
(GM Part No. U.S. 3634770,
in Canada 10953518) or
Dielectric Silicone Grease
(GM Part No. U.S. 12345579,
in Canada 992887).
6-12

Checking Things Under the Hood......................5-12
Chemical Paint Spotting...................................5-99
Child Restraints
Child Restraint Systems...............................1-41
Infants and Young Children...........................1-38
Lower Anchors and Tethers for Children..........1-45
Older Children.............................................1-35
Securing a Child Restraint in a
Rear Seat Position...................................1-51
Securing a Child Restraint in the
Center Front Seat Position........................1-54
Securing a Child Restraint in the
Right Front Seat Position..........................1-54
Where to Put the Restraint...........................1-44
Cleaning
Aluminum or Chrome-Plated Wheels..............5-98
Exterior Lamps/Lenses.................................5-96
Fabric/Carpet..............................................5-93
Finish Care.................................................5-96
Instrument Panel, Vinyl, and Other Plastic
Surfaces.................................................5-95
Interior.......................................................5-92
Leather......................................................5-94
Tires..........................................................5-99
Underbody Maintenance...............................5-99
Washing Your Vehicle...................................5-96
Weatherstrips..............................................5-95
Windshield and Wiper Blades........................5-97Climate Control System...................................3-21
Air Filter, Passenger Compartment.................3-30
Dual Automatic............................................3-24
Outlet Adjustment........................................3-30
Clock, Setting.................................................3-76
Collision Damage Repair..................................7-12
Compact Spare Tire........................................5-91
Compass.......................................1-12, 2-34, 3-54
Content Theft-Deterrent....................................2-17
Control of a Vehicle.......................................... 4-3
Convenience Net............................................2-57
Coolant
Engine...............................................5-28, 5-32
Engine Temperature Gage............................3-42
Engine Temperature Warning Light.................3-42
Surge Tank Pressure Cap.............................5-35
Cooled Seats................................................... 1-7
Cooling System..............................................5-26
Cornering Lamps............................................3-17
Courtesy Lamps.............................................3-18
Cruise Control................................................3-12
Cruise Control Light........................................3-47
Cupholders....................................................2-57
Customer Assistance Information
Courtesy Transportation................................7-10
Customer Assistance for
Text Telephone (TTY) Users........................ 7-6
Customer Assistance Offices........................... 7-6
3

Electronic Immobilizer Operation
PASS-Key®III+...........................................2-19
Engine
Air Cleaner/Filter.........................................5-22
Check and Service Engine Soon Lamp...........3-43
Coolant..............................................5-28, 5-32
Coolant Heater............................................2-24
Coolant Temperature Gage...........................3-42
Coolant Temperature Warning Light................3-42
Drive Belt Routing.......................................6-14
Engine Compartment Overview......................5-14
Exhaust.....................................................2-32
Oil .............................................................5-17
Oil Life System...........................................5-20
Overheated Protection Operating Mode...........5-37
Overheating................................................5-35
Starting......................................................2-22
Entry Lighting.................................................3-18
Event Data Recorders.....................................7-17
Extender, Safety Belt.......................................1-34
Exterior Lamps...............................................3-15
Exterior Lighting Battery Saver..........................3-17
F
Filter
Engine Air Cleaner......................................5-22
Finish Damage...............................................5-99
Flashers, Hazard Warning.................................. 3-6Flash-to-Pass................................................... 3-9
Flat Tire........................................................5-81
Flat Tire, Changing.........................................5-82
Flat Tire, Storing.............................................5-89
Fluid
Automatic Transmission................................5-23
Power Steering...........................................5-38
Windshield Washer......................................5-39
Fog Lamp
Fog ...........................................................3-17
Fog Lamp Light..............................................3-47
Front Reading Lamps......................................3-18
Front Storage Area.........................................2-57
Fuel............................................................... 5-5
Additives...................................................... 5-7
California Fuel.............................................. 5-6
Driving for Better Economy............................. 4-2
E85 (85% Ethanol)........................................ 5-8
Filling a Portable Fuel Container....................5-12
Filling the Tank...........................................5-10
Fuels in Foreign Countries.............................. 5-9
Gage .........................................................3-48
Gasoline Octane........................................... 5-6
Gasoline Specications.................................. 5-6
Fuses
Fuses and Circuit Breakers.........................5-101
Rear Underseat Fuse Block.........................5-104
Underhood Fuse Block...............................5-101
5

G
Gage
Engine Coolant Temperature.........................3-42
Fuel..........................................................3-48
Speedometer..............................................3-34
Tachometer.................................................3-34
Garage Door Opener.......................................2-50
Gasoline
Octane........................................................ 5-6
Specications............................................... 5-6
Glove Box.....................................................2-57
GM Mobility Reimbursement Program.................. 7-7
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-2
Headlamp
Aiming .......................................................5-51
Headlamps
Bulb Replacement.......................................5-54
Daytime Running Lamp................................3-16
Exterior Lamps............................................3-15
Flash-to-Pass............................................... 3-9
Halogen Bulbs............................................5-54
High/Low Beam Changer................................ 3-9
On Reminder..............................................3-16
Wiper Activated...........................................3-16Heated Seats............................................1-6, 1-7
Heated Steering Wheel..................................... 3-7
Heater...........................................................3-21
Engine Coolant...........................................2-24
Heater...........................................................3-24
Highbeam On Light.........................................3-47
Highway Hypnosis...........................................4-13
Hill and Mountain Roads..................................4-14
Hood
Checking Things Under................................5-12
Release.....................................................5-13
Horn ............................................................... 3-6
How to Wear Safety Belts Properly...................1-18
I
Ignition Positions.............................................2-21
Inadvertent Power Battery Saver.......................3-19
Infants and Young Children, Restraints...............1-38
Ination - Tire Pressure...................................5-66
Instrument Panel
Brightness..................................................3-17
Cluster.......................................................3-33
Overview..................................................... 3-4
6