2004 GMC YUKON rear view mirror

The mirrors may also include a memory function which
works in conjunction with the memory seats. See
“Memory Seats” underMemory Seat on page 2-64for
more information.
To fold or unfold the mirrors, move the selector switch,
located about the mirror control, to the middle
position. The mirror control will illuminate. Press the
right or left side of the mirror control to fold or unfold the
mirrors. You may notice the mirror glass adjust as the
mirrors fold in; this is normal. The mirror glass will
reposition itself once the mirrors are unfolded.
If the mirrors are accidentally folded/unfolded manually,
they may shake or utter at normal driving speeds
and may not stay in the unfolded position. If this
happens, you will need to reset the mirrors. See
“Resetting the Power Foldaway Mirrors” next.Resetting the Power Foldaway Mirrors
You will need to reset the power foldaway mirrors if the
following occurs:
They are accidentally manually folded/unfolded.
The mirrors will not stay in the unfolded position.
The mirrors shake and utter at normal driving
speeds.
To reset the power foldaway mirrors, fold and unfold
then at least three times using the mirror controls. This
will reset them to their normal detent position.
Outside Automatic Dimming Mirror
If your vehicle is equipped with this feature, the
driver’s outside mirror will adjust for the glare of
headlamps behind you. This feature is controlled by the
on and off settings found on the electrochromic
mirror. SeeAutomatic Dimming Rearview Mirror with
Compass and Temperature Display on page 2-46.
2-51

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

Air Bag Readiness Light
There is an air bag readiness light on the instrument
panel cluster, which shows the air bag symbol.
The system checks the air bag’s electrical system for
malfunctions. The light tells you if there is an electrical
problem. The system check includes the air bag
sensors, the air bag modules, the passenger sensing
system (if equipped), the wiring and the crash sensing
and diagnostic module. For more information on the
air bag system, seeAir Bag Systems on page 1-72.
This light will come on
when you start your
vehicle, and it will ash for
a few seconds. Then the
light should go out. This
means the system is ready.
If the air bag readiness light stays on after you start the
vehicle or comes on when you are driving, your air
bag system may not work properly. Have your vehicle
serviced right away.
Passenger Air Bag Status Indicator
If your vehicle has the passenger sensing system
your rearview mirror will have a passenger air bag status
indicator.
When the ignition key is turned to RUN or START, the
passenger air bag status indicator will light ON and
OFF, or the symbol for on and off, for several seconds
as a system check. Then, after several more seconds,
the status indicator will light either ON or OFF, or either
the on or off symbol to let you know the status of the
right front passenger’s frontal air bag.
Passenger Air Bag Status Indicator – United States
Passenger Air
Bag Status
Indicator – Canada
3-43

Here are some tips on night driving.
Drive defensively.
Do not drink and drive.
Adjust your inside rearview mirror to reduce the
glare from headlamps behind you.
Since you can not see as well, you may need to
slow down and keep more space between you
and other vehicles.
Slow down, especially on higher speed roads. Your
headlamps can light up only so much road ahead.
In remote areas, watch for animals.
If you are tired, pull off the road in a safe place
and rest.
No one can see as well at night as in the daytime. But
as we get older these differences increase. A
50-year-old driver may require at least twice as much
light to see the same thing at night as a 20-year-old.
What you do in the daytime can also affect your
night vision. For example, if you spend the day in bright
sunshine you are wise to wear sunglasses. Your
eyes will have less trouble adjusting to night. But if you
are driving, do not wear sunglasses at night. They
may cut down on glare from headlamps, but they also
make a lot of things invisible.You can be temporarily blinded by approaching
headlamps. It can take a second or two, or even several
seconds, for your eyes to re-adjust to the dark. When
you are faced with severe glare (as from a driver
who does not lower the high beams, or a vehicle with
misaimed headlamps), slow down a little. Avoid
staring directly into the approaching headlamps.
Keep your windshield and all the glass on your vehicle
clean — inside and out. Glare at night is made much
worse by dirt on the glass. Even the inside of the glass
can build up a lm caused by dust. Dirty glass makes
lights dazzle and ash more than clean glass would,
making the pupils of your eyes contract repeatedly.
Remember that your headlamps light up far less of a
roadway when you are in a turn or curve. Keep
your eyes moving; that way, it is easier to pick out dimly
lighted objects. Just as your headlamps should be
checked regularly for proper aim, so should your eyes
be examined regularly. Some drivers suffer from
night blindness — the inability to see in dim light — and
are not even aware of it.
4-37

Fuses Usage
4WDFour-Wheel Drive System,
Auxiliary Battery
HTR A/C Climate Control System
LOCKPower Door Lock Relay
(Lock Function)
HVAC 1Inside Rearview Mirror,
Climate Control System
L DOORDriver’s Door Harness
Connection
CRUISE Cruise Control
UNLOCKPower Door Lock Relay
(Unlock Function)
RR FOG LP Rear Fog Lamp (Export Only)
BRAKE Anti-Lock Brake System
DRIVER UNLOCKPower Door Lock Relay
(Driver’s Door Unlock
Function)
IGN 0 PCM, TCM
TBC IGN 0 Truck Body Controller
VEH CHMSLVehicle and Trailer High
Mounted Stoplamp
LT TRLR ST/TRN Left Turn Signal/Stop TrailerFuses Usage
LT TRNLeft Turn Signals and
Sidemarkers
VEH STOPVehicle Stoplamps, Brake
Module, Electronic Throttle
Control Module
RT TRLR ST/TRN Right Turn Signal/Stop Trailer
RT TRNRight Turn Signals and
Sidemarkers
BODY Harness Connector
DDM Driver Door Module
AUX PWR 2Rear Cargo Area Power
Outlets
LOCKS Power Door Lock System
ECCRear Electronic Climate
Control, Liftgate
TBC 2C Truck Body Controller
FLASH Flasher Module
CB LT DOORSLeft Power Window Circuit
Breaker
TBC 2B Truck Body Controller
TBC 2A Truck Body Controller
5-115

M
Maintenance Schedule
Additional Required Services........................... 6-6
At Each Fuel Fill........................................... 6-9
At Least Once a Month.................................. 6-9
At Least Once a Year..................................6-10
Introduction.................................................. 6-2
Maintenance Footnotes.................................. 6-7
Maintenance Record....................................6-16
Maintenance Requirements............................. 6-2
Normal Maintenance Replacement Parts.........6-14
Owner Checks and Services........................... 6-9
Recommended Fluids and Lubricants.............6-12
Scheduled Maintenance................................. 6-4
Using Your................................................... 6-3
Your Vehicle and the Environment................... 6-2
Maintenance When Trailer Towing.....................4-74
Making Turns.................................................4-72
Malfunction Indicator Light................................3-51
Manual Seats................................................... 1-3
Manual Windows............................................2-16
Matching Transmitter(s) to Your Vehicle............... 2-6
Memory Seat.................................................2-64
Message
DIC Warnings and Messages........................3-70Mexico, Central America and Caribbean Islands/
Countries (Except Puerto Rico and U.S. Virgin
Islands)....................................................... 7-5
Mirrors
Automatic Dimming Rearview with Compass
and Temperature Display...........................2-46
Automatic Dimming Rearview with OnStar
®,
Compass and Temperature Display.............2-44
Manual Rearview Mirror................................2-43
Outside Automatic Dimming Mirror.................2-51
Outside Camper-Type Mirrors........................2-49
Outside Convex Mirror.................................2-52
Outside Curb View Assist Mirrors...................2-52
Outside Heated Mirrors................................2-52
Outside Manual Mirrors................................2-49
Outside Power Camper-Type.........................2-50
Outside Power Foldaway Mirrors....................2-50
Outside Power Mirrors..................................2-50
Model Reference................................................ vi
MyGMLink.com................................................ 7-3
N
New Vehicle Break-In......................................2-20
Normal Maintenance Replacement Parts............6-14
10

Power
Accessory Outlets........................................3-21
Door Locks.................................................. 2-9
Electrical System.......................................5-113
Lumbar Controls........................................... 1-5
Seat............................................................ 1-4
Steering Fluid.............................................5-38
Windows....................................................2-16
Power Steering...............................................4-14
Power Winches..............................................4-79
Programmable Automatic Door Locks.................2-10
Programming the HomeLink
®Transmitter...........2-56
Q
QUADRASTEER™..........................................4-16
Questions and Answers About Safety Belts.........1-27
R
Radio Data System (RDS)..............3-81, 3-93, 3-108
Radio Messages.............................3-80, 3-87, 3-99
Radios..........................................................3-77
AM-FM Radio.............................................3-78
Care of Your Cassette Tape Player...............3-137
Care of Your CD and DVD Player................3-139
Care of Your CDs and DVDs.......................3-138
Radio with Cassette and CD.........................3-92
Radio with CD............................................3-81Radios (cont.)
Radio with Six-Disc CD..............................3-108
Rear Seat Audio........................................3-134
Setting the Time for Radios with Radio Data
Systems (RDS)........................................3-78
Setting the Time for Radios without Radio
Data Systems (RDS)................................3-77
Theft-Deterrent..........................................3-135
Understanding Reception............................3-137
RDS Messages.............................3-86, 3-98, 3-113
REAR ACCESS OPEN....................................3-73
Rear Air Conditioning and Heating System.........3-35
Rear Air Conditioning and Heating System and
Electronic Climate Controls...........................3-38
Rear Air Conditioning System...........................3-34
Rear Axle......................................................5-52
Locking......................................................4-11
Rear Door Security Locks................................2-12
Rear Safety Belt Comfort Guides......................1-42
Rear Seat Audio Controls...............................3-134
Rear Seat Audio (RSA)..................................3-134
Rear Seat Entertainment System.....................3-122
Rear Seat Operation......................................... 1-8
Rear Seat Outside Passenger Positions.............1-39
Rear Seat Passengers, Safety Belts..................1-39
Rear Storage Area..........................................2-62
Rear Window Defogger............................3-25, 3-33
Rearview Mirror, Automatic Dimming with
Compass and Temperature Display................2-46
12

Rearview Mirror, Automatic Dimming with
OnStar®, Compass and Temperature Display.....2-44
Rearview Mirrors.............................................2-43
Reclining Seatbacks.......................................... 1-6
Reclining the Seatbacks...................................1-21
Recommended Fluids and Lubricants.................6-12
Recreational Vehicle Towing.............................4-53
REDUCED ENGINE POWER...........................3-73
Remote Alarm.................................................. 2-6
Remote Control.............................................3-126
Remote Keyless Entry System............................ 2-4
Remote Keyless Entry System, Operation............ 2-5
Removing the 50/50 Split Bench Seat................1-13
Removing the Bench Seat................................1-19
Removing the Flat Tire and Installing the
Spare Tire..................................................5-89
Removing the Spare Tire and Tools...................5-85
REPLACE LIFTGATE FUSE.............................3-73
Replacement Bulbs.........................................5-61
Replacing Brake System Parts..........................5-44
Replacing Restraint System Parts After
a Crash.....................................................1-88
Replacing the 50/50 Split Bench Seat................1-14
Replacing the Bench Seat................................1-20
Reporting Safety Defects
Canadian Government..................................7-12
General Motors...........................................7-12
United States Government............................7-11
Reprogramming a Single HomeLink
®Button.......2-59
Resetting Defaults...........................................2-59Restraint System Check
Checking Your Restraint Systems...................1-87
Replacing Restraint System Parts After
a Crash..................................................1-88
Restraint Systems
Checking....................................................1-87
Replacing Parts...........................................1-88
Resynchronization............................................. 2-7
Retained Accessory Power (RAP)......................2-21
Right Front Passenger Position, Safety Belts......1-37
RIGHT REAR DOOR AJAR..............................3-73
Roadside
Assistance Program....................................... 7-6
Rocking Your Vehicle To Get It Out...................4-51
Running Your Engine While You Are Parked.......2-42
S
Safety Belt
Reminder Light............................................3-42
Safety Belts
Care of....................................................5-106
Center Passenger Position............................1-37
Driver Position............................................1-28
How to Wear Safety Belts Properly................1-28
Questions and Answers About Safety Belts.....1-27
Rear Safety Belt Comfort Guides for Children
and Small Adults......................................1-42
Rear Seat Passengers.................................1-39
13