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When you open the hood on the 4.6L V8 engine, you will see the following:
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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. 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
your engine if it overheats, and get out of the
vehicle until the engine is cool.
SeeOverheated Engine Protection Operating
Mode on page 5-28for 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. SeeOverheated Engine
Protection Operating Mode on page 5-28for
information on driving to a safe place in an
emergency.
If No Steam Is Coming From Your
Engine
An overheat warning, can indicate a serious problem.
If you get an engine overheat warning but see or
hear no steam, the problem might 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.
Tow a trailer.
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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. Set the climate controls to the highest heat
setting and fan speed and open the windows,
as necessary.
If the coolant warning light is not on or the coolant
temperature gage does not indicate the engine
is overheating, you can drive. Just to be safe, drive
slower for about 10 minutes. If the warnings do not
come back on, drive normally.
If the warnings continue and you have 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 warnings are
still indicated, turn off the engine and get everyone
out of the vehicle until it cools down. Also, see
“Overheated Engine Protection Operating Mode” later
in this section.
You might decide not to lift the hood but to get service
help right away.Overheated Engine Protection
Operating Mode
This operating mode allows your vehicle to be driven to
a safe place in an emergency. Should a hot engine
condition exist, an overheat protection mode which
alternates ring groups of cylinders helps prevent engine
damage. In this mode, there is a loss in power and
engine performance. 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 and change the oil.
SeeEngine Oil on page 5-16.
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4. Open the hoods and locate the positive (+) and
negative (−) terminal locations or the remote
positive (+) and remote negative (−) terminals of the
other vehicle. Then locate the remote positive (+)
location on your vehicle. SeeEngine Compartment
Overview on page 5-12for more information on
locations the terminals.
Your vehicle has a remote negative (−) ground
location, as shown in the illustration. It is located
on the rear passenger side of the vehicle. See
Engine Compartment Overview on page 5-12.
You should always use this remote ground location,
instead of the terminal on the battery.Notice:If you connect a negative cable to the
Engine Control Module (ECM), ECM mounting
bracket, or any cables that attach to the ECM
bracket, you may damage the ECM. Always attach
the negative cable to your vehicle’s remote negative
ground location, instead of the ECM, ECM bracket,
or any cables attached to the ECM bracket.
{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.
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Fuses
Fuses and Circuit Breakers.........................5-101
Rear Underseat Fuse Block...............5-105, 5-108
Underhood Fuse Block...............................5-101
Windshield Wiper.......................................5-100
G
Gage
Engine Coolant Temperature.........................3-40
Fuel..........................................................3-47
Speedometer..............................................3-33
Tachometer.................................................3-33
Garage Door Opener.......................................2-50
Gasoline
Octane........................................................ 5-5
Speci cations............................................... 5-6
Glove Box.....................................................2-57
GM Mobility Reimbursement Program.................. 7-7
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-9
Headlamp
Aiming.......................................................5-47
Headlamps....................................................3-16
Bulb Replacement.......................................5-47
Daytime Running Lamps...............................3-17
Flash-to-Pass............................................... 3-9
Halogen Bulbs............................................5-48
High Intensity Discharge (HID) Lighting...........5-48
High/Low Beam Changer................................ 3-8
On Reminder..............................................3-16
Washer......................................................3-12
Wiper Activated...........................................3-16
Heated Seats................................................... 1-4
Heated Steering Wheel..................................... 3-7
Heater...........................................................3-23
Highbeam On Light.........................................3-46
High-Speed Operation, Tires.............................5-60
Highway Hypnosis...........................................4-27
Hill and Mountain Roads..................................4-28
Hood
Checking Things Under................................5-10
Release.....................................................5-11
Horn............................................................... 3-6
How to Wear Safety Belts Properly...................1-18
6