If the coolant is not at the proper level, repeat Steps 1
through 3 and reinstall the pressure cap. If the coolant is
not at the proper level when the system cools down
again, see your dealer/retailer.
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.
Engine Overheating
The vehicle has several indicators to warn of engine
overheating.
You will nd a coolant temperature gage on your
vehicle’s instrument panel. SeeEngine Coolant
Temperature Gage on page 3-32. There are also
several different types of engine overheating messages
that may be displayed in the Driver Information
Center (DIC). SeeDIC Warnings and Messages
on page 3-49.You may decide not to lift the hood when this warning
appears, but instead get service help right away.
SeeRoadside Assistance Program on page 7-7.
If you do decide to lift the hood, make sure the vehicle
is parked on a level surface.
Then check to see if the engine cooling fans are
running. If the engine is overheating, both fans should
be running. If they are not, do not continue to run
the engine and have the vehicle serviced.
Notice:Engine damage from running the engine
without coolant is not covered by the warranty.
Notice:If the engine catches re while driving
with no coolant, the vehicle can be badly damaged.
The costly repairs would not be covered by the
vehicle warranty. SeeOverheated Engine Protection
Operating Mode on page 5-30for information on
driving to a safe place in an emergency.
5-28
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 5-30for 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 conditioner off.
2. Turn the heater on to the highest temperature and
to the highest fan speed. Open the windows as
necessary.
3. If in a traffic jam, try to minimize engine load. Shift
to N (Neutral); otherwise, shift to the highest gear
while driving.
5-29
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
This emergency operating mode lets the vehicle
be driven to a safe place in an emergency situation.
If an overheated engine condition exists, an overheat
protection mode which alternates ring groups of
cylinders helps prevent engine damage. In this
mode, there is a signi cant loss in power and engine
performance. The temperature gage indicates an
overheat condition exists. Driving extended distances
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 5-15.
5-30
Electronic Immobilizer
PASS-Key®III+...........................................2-17
Electronic Immobilizer Operation
PASS-Key
®III+...........................................2-18
Engine
Air Cleaner/Filter.........................................5-20
Change Engine Oil Light...............................3-36
Check and Service Engine Soon Lamp...........3-33
Coolant......................................................5-23
Coolant Heater............................................2-23
Coolant Temperature Gage...........................3-32
Coolant Temperature Warning Light................3-31
Drive Belt Routing.......................................6-14
Engine Compartment Overview......................5-12
Exhaust.....................................................2-34
Oil .............................................................5-15
Oil Life System...........................................5-18
Overheated Protection Operating Mode...........5-30
Overheating................................................5-28
Reduced Power Light...................................3-38
Starting......................................................2-21
Entry Lighting.................................................3-15
Event Data Recorders.....................................7-17
Extender, Safety Belt.......................................1-32
F
Filter
Engine Air Cleaner......................................5-20
Finish Damage...............................................5-95
Flashers, Hazard Warning.................................. 3-6
Flash-to-Pass................................................... 3-8
Flat Tire........................................................5-75
Flat Tire, Changing.........................................5-76
Flat Tire, Storing.............................................5-85
Fluid
Automatic Transmission................................5-22
Power Steering...........................................5-31
Windshield Washer......................................5-32
Fog Lamp
Fog ...........................................................3-14
Fog Lamp Light..............................................3-37
Folding Rear Seat...........................................1-10
Folding Seatback, Passenger............................. 1-8
Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-6
Driving for Better Economy............................. 4-2
Filling a Portable Fuel Container....................5-10
Filling the Tank............................................. 5-8
Fuels in Foreign Countries.............................. 5-7
5
Manual Seats................................................... 1-2
Map Lamps ....................................................3-15
Message
DIC Warnings and Messages........................3-49
Mirrors
Automatic Dimming Rearview........................2-36
Manual Rearview Mirror................................2-36
Outside Convex Mirrors................................2-37
Outside Power Mirrors..................................2-36
MP3 .....................................................3-86, 3-91
MyGMLink.com................................................ 7-5
N
Navigation System, Privacy..............................7-18
Navigation/Radio System,
see Navigation Manual.................................3-97
New Vehicle Break-In......................................2-19
O
Odometer......................................................3-25
Odometer, Trip...............................................3-25
Off-Road Recovery..........................................4-11Oil
Change Engine Oil Light...............................3-36
Engine.......................................................5-15
Pressure Light.............................................3-36
Oil, Engine Oil Life System..............................5-18
Older Children, Restraints................................1-32
Online Owner Center........................................ 7-5
OnStar, Privacy..............................................7-18
OnStar
®System, see OnStar®Manual...............2-37
Outlet Adjustment............................................3-21
Outlets
Accessory Power.........................................3-17
Outside
Convex Mirrors............................................2-37
Power Mirrors.............................................2-36
Overheated Engine Protection Operating Mode.....5-30
Owner Checks and Services.............................. 6-8
Owners, Canadian............................................... ii
P
Paint, Damage...............................................5-95
Park
Shifting Into................................................2-32
Shifting Out of............................................2-33
Park Brake....................................................2-31
9