2004 GMC YUKON lane assist

Outside Curb View Assist Mirrors
If your vehicle has the optional memory package
you may have this feature.
The vehicle’s mirrors are capable of performing the curb
view assist mirror function. This feature will cause the
passenger’s and/or driver’s mirror to tilt to a preselected
position when the vehicle is in REVERSE (R). This
feature may be useful in allowing you to view the curb
when you are parallel parking. When the vehicle is
shifted out of REVERSE (R) and a short delay
has occurred, the passenger’s and/or driver’s mirror will
return to its original position.
To change the preselected tilt position, adjust the
mirrors to the desired position while the vehicle is in
REVERSE (R). When the vehicle is shifted out of
REVERSE (R), this new position is saved in memory as
the tilt position.
You may be able to enable/disable this feature through
the Driver Information Center. SeeDriver Information
Center (DIC) on page 3-58.
Outside Convex Mirror
Your passenger’s side mirror is convex. A convex
mirror’s surface is curved so you can see more from the
driver’s seat.
{CAUTION:
A convex mirror can make things (like other
vehicles) look farther away than they really are.
If you cut too sharply into the right lane, you
could hit a vehicle on your right. Check your
inside mirror or glance over your shoulder
before changing lanes.
Outside Heated Mirrors
The outside rearview mirrors with this option have a
defrost mode.
To turn on the defrost feature, press the rear window
defogger button. See “Rear Window Defogger”
underDual Automatic Climate Control System on
page 3-27for further information.
2-52

If you drive regularly in steep country, or if you are
planning to visit there, here are some tips that can make
your trips safer and more enjoyable. SeeOff-Road
Driving on page 4-22for information about driving
off-road.
Keep your vehicle in good shape. Check all uid
levels and also the brakes, tires, cooling system
and transmission. These parts can work hard
on mountain roads.
Know how to go down hills. The most important
thing to know is this: let your engine do some of
the slowing down. Shift to a lower gear when you go
down a steep or long hill.
{CAUTION:
If you do not shift down, your brakes could get
so hot that they would not work well. You
would then have poor braking or even none
going down a hill. You could crash. Shift down
to let your engine assist your brakes on a
steep downhill slope.
{CAUTION:
Coasting downhill in NEUTRAL (N) or with the
ignition off is dangerous. Your brakes will have
to do all the work of slowing down. They could
get so hot that they would not work well. You
would then have poor braking or even none
going down a hill. You could crash. Always
have your engine running and your vehicle in
gear when you go downhill.
Know how to go uphill. You may want to shift down to
a lower gear. The lower gears help cool your engine
and transmission, and you can climb the hill better.
Stay in your own lane when driving on two-lane
roads in hills or mountains. Do not swing wide or cut
across the center of the road. Drive at speeds that let
you stay in your own lane.
As you go over the top of a hill, be alert. There could
be something in your lane, like a stalled car or an
accident.
You may see highway signs on mountains that warn
of special problems. Examples are long grades,
passing or no-passing zones, a falling rocks area or
winding roads. Be alert to these and take appropriate
action.
4-45

Tire Size.......................................................5-67
Tire Terminology and Denitions........................5-69
Tires.............................................................5-63
Buying New Tires........................................5-78
Chains.......................................................5-82
Changing a Flat Tire....................................5-84
If a Tire Goes Flat.......................................5-83
Ination - Tire Pressure................................5-72
Inspection and Rotation................................5-76
Pressure Monitor System..............................5-73
Spare Tire................................................5-102
Uniform Tire Quality Grading.........................5-79
Wheel Alignment and Tire Balance.................5-80
Wheel Replacement.....................................5-81
When It Is Time for New Tires......................5-77
Entering or Exiting the Third Row Seats.............. 1-8
To Use the Engine Coolant Heater....................2-24
Top Strap......................................................1-55
Top Strap Anchor Location...............................1-57
Torque Lock...................................................2-40
Total Weight on Your Vehicle’s Tires..................4-69
Tow/Haul Mode...............................................2-28
Tow/Haul Mode Light.......................................3-56
Towing
Recreational Vehicle.....................................4-53
Towing a Trailer..........................................4-63
Your Vehicle...............................................4-53Traction
Assist System (TAS)...................................... 4-9
Off Light.....................................................3-48
Stabilitrak
®System......................................4-11
TRACTION ACTIVE........................................3-76
Traction Control Operation................................4-12
TRACTION SYS LIMITED................................3-77
Trailer
Recommendations.......................................4-62
Trailer Brakes.................................................4-70
Trailer Wiring Harness.....................................4-75
Transfer Case........................................5-51, 5-53
Transmission
Fluid, Automatic...........................................5-23
Temperature Gage.......................................3-49
TRANSMISSION HOT.....................................3-76
Transmission Operation, Automatic....................2-24
Transmission, Transaxle, Transfer Case Unit
Repair Manual............................................7-12
Transportation Options...................................... 7-8
Traveling to Remote Areas...............................4-26
Trip Information Button....................................3-59
Trip Odometer................................................3-42
Turn and Lane Change Signals.......................... 3-8
TURN SIGNAL ON.........................................3-77
Turn Signal/Multifunction Lever........................... 3-8
Turn Signals When Towing a Trailer..................4-72
16