lights GMC YUKON 2004 Owner's Guide

Rocking Your Vehicle To Get It Out
First, turn your steering wheel left and right. That will
clear the area around your front wheels. If you have a
four-wheel-drive vehicle, shift into 4HI or 4LO. If
your vehicle has the Traction Assist System, you should
turn it off by pressing the TAS on/off button. If your
vehicle has the Stabilitrak
®System, turn the
Stabilitrak®System off by pressing the
Stabilitrak®button so that the STABILITY SYSTEM
DISABLED and TRACTION OFF lights are illuminated
on the instrument panel cluster. Then shift back and
forth between REVERSE (R) and a forward gear,
spinning the wheels as little as possible. Release the
accelerator pedal while you shift, and press lightly on the
accelerator pedal when the transmission is in gear.
By slowly spinning your wheels in the forward and
reverse directions, you will cause a rocking motion that
may free your vehicle. If that does not get you out
after a few tries, you may need to be towed out. Or, you
can use your recovery hooks if your vehicle has
them. If you do need to be towed out, seeTowing Your
Vehicle on page 4-53.
Using the Recovery Hooks
Your vehicle may be equipped with recovery hooks. The
hooks are provided at the front of your vehicle. You may
need to use them if you are stuck off-road and need to be
pulled to some place where you can continue driving.
4-51

Engine Coolant
The cooling system in your vehicle is lled with
DEX-COOL®engine coolant. This coolant is designed
to remain in your vehicle for 5 years or 150,000 miles
(240 000 km), whichever occurs rst, 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, seeEngine Overheating on
page 5-29.
A 50/50 mixture of clean, drinkable water and
DEX-COOL
®coolant will:
Give freezing protection down to−34°F (−37°C).
Give boiling protection up to 265°F (129°C).
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
®may
cause premature engine, heater core or radiator
corrosion. In addition, the engine coolant may
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.
What to Use
Use a mixture of one-halfclean, drinkable waterand
one-half DEX-COOL®coolant which won’t damage
aluminum parts. If you use this coolant mixture,
you don’t need to add anything else.
{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.
5-26

U
Underhood Fuse Block...................................5-117
Understanding Radio Reception.......................3-137
Uniform Tire Quality Grading............................5-79
United States................................................... 7-4
Used Replacement Wheels..............................5-82
Using Cleaner on Fabric................................5-104
Using HomeLink
®...........................................2-58
Using Song List Mode...................................3-120
Using the Recovery Hooks...............................4-51
V
Vehicle
Control........................................................ 4-5
Damage Warnings........................................... iv
Loading......................................................4-56
Symbols......................................................... iv
Vehicle Data Collection and Event Data Records . 7-10
Vehicle Identication
Number (VIN)............................................5-112
Service Parts Identication Label..................5-112
Vehicle Personalization
Memory Seat..............................................2-64
Vehicle Storage..............................................5-44
Video Screen................................................3-126
Visors...........................................................2-17
Voltmeter Gage..............................................3-45
W
Warning Lights, Gages and Indicators................3-40
Warnings
DIC Warnings and Messages........................3-70
Hazard Warning Flashers............................... 3-6
Other Warning Devices.................................. 3-7
Safety and Symbols......................................... iii
Vehicle Damage.............................................. iv
Washing Your Vehicle....................................5-107
Weight Distributing Hitches and Weight
Carrying Hitches..........................................4-69
Weight of the Trailer........................................4-65
Weight of the Trailer Tongue.............................4-68
What Kind of Engine Oil to Use........................5-17
What to Add..................................................5-42
What to Do with Used Oil................................5-20
What to Use..........................5-26, 5-39, 5-40, 5-52
Wheels
Alignment and Tire Balance..........................5-80
Replacement...............................................5-81
When to Add Engine Oil..................................5-17
When to Change Engine Oil (GM Oil
Life System)...............................................5-19
When to Check..............................................5-72
When to Check and Change............................5-23
When to Check Lubricant.................................5-52
When to Check Power Steering Fluid................5-39
17