2003 GMC SONOMA rear view mirror

Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-3
Rear Seats
............................................... 1-9
Safety Belts
.............................................1-10
Child Restraints
.......................................1-30
Air Bag System
.......................................1-54
Restraint System Check
............................1-64
Features and Controls..................................... 2-1
Keys
........................................................ 2-3
Doors and Locks
....................................... 2-8
Windows
.................................................2-14
Theft-Deterrent Systems
............................2-17
Starting and Operating Your Vehicle
...........2-20
Mirrors
....................................................2-39
Storage Areas
.........................................2-41
Sunroof
..................................................2-52
Vehicle Personalization
.............................2-54
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-2
Climate Controls
......................................3-17
Warning Lights, Gages and Indicators
.........3-20
Audio System(s)
.......................................3-36
Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and Your Vehicle
..... 4-2
Towing
...................................................4-42Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-4
Checking Things Under the Hood
................. 5-8
Rear Axle
...............................................5-47
Four-Wheel Drive
.....................................5-48
Front Axle
...............................................5-49
Bulb Replacement
....................................5-50
Windshield Wiper Blade Replacement
.........5-56
Tires
......................................................5-58
Appearance Care
.....................................5-79
Vehicle Identification
.................................5-87
Electrical System
......................................5-88
Capacities and Specifications
.....................5-94
Normal Maintenance Replacement Parts
......5-96
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance Information.................... 7-1
Customer Assistance Information
.................. 7-2
Reporting Safety Defects
............................ 7-8
Index................................................................ 1
2003 GMC Sonoma Owner ManualM
2003 - Sonoma Owner Manual

Keys...............................................................2-3
Remote Keyless Entry System.........................2-4
Remote Keyless Entry System Operation...........2-5
Doors and Locks.............................................2-8
Door Locks....................................................2-8
Power Door Locks..........................................2-9
Programmable Automatic Door Locks................2-9
Rear Door Security Locks..............................2-11
Lockout Protection........................................2-11
Leaving Your Vehicle....................................2-11
Third Door...................................................2-12
Tailgate.......................................................2-12
Windows........................................................2-14
Manual Windows..........................................2-15
Power Windows............................................2-15
Swing-Out Windows......................................2-16
Sliding Rear Window.....................................2-16
Sun Visors...................................................2-16
Theft-Deterrent Systems..................................2-17
Content Theft-Deterrent.................................2-17
Passlock
®....................................................2-19Starting and Operating Your Vehicle................2-20
New Vehicle Break-In....................................2-20
Ignition Positions..........................................2-20
Starting Your Engine.....................................2-22
Engine Coolant Heater..................................2-24
Automatic Transmission Operation...................2-25
Manual Transmission Operation......................2-28
Four-Wheel Drive..........................................2-29
Parking Brake..............................................2-32
Shifting Into Park (P).....................................2-33
Shifting Out of Park (P).................................2-35
Parking Your Vehicle.....................................2-36
Parking Over Things That Burn.......................2-36
Engine Exhaust............................................2-37
Running Your Engine While You Are Parked. . . .2-38
Mirrors...........................................................2-39
Manual Rearview Mirror.................................2-39
Automatic Dimming Rearview Mirror................2-39
Outside Manual Mirror...................................2-39
Outside Power Mirrors...................................2-40
Outside Convex Mirror...................................2-40
Outside Heated Mirrors..................................2-41
Section 2Features and Controls
2-1
2003 - Sonoma OM

Mirrors
Manual Rearview Mirror
Pull the tab under the mirror toward you to reduce the
glare from headlamps behind you after dark. Push
the tab away from you for normal daytime operation.
Automatic Dimming Rearview Mirror
If your vehicle has this feature, the mirror automatically
changes to reduce glare from headlamps behind
you. A photocell on the back of the mirror senses when
it is becoming dark outside. Another photocell built
into the mirror surface senses when headlamps
are behind you.
At night, when the glare is too high, the mirror will
gradually darken to reduce glare. This change may take a
few seconds. The mirror will return to its clear daytime
state when the vehicle is put into REVERSE (R) or when
the glare is reduced.
AUTO:This button is located at the base of the mirror.
Use it to turn on the automatic feature. The button
has an indicator light to show it is on.
OFF:Press this button to turn the automatic feature off.
Time Delay
The automatic mirror has a time delay feature which
prevents unnecessary switching from the night back to
the day position. This delay prevents rapid changing
of the mirror as you drive under lights and through traffic.
Cleaning the Photocells
Use a cotton swab and glass cleaner to clean the
photocells and mirror face when necessary.
Cleaning the Mirror
When cleaning the mirror, use a paper towel or similar
material dampened with glass cleaner. Do not spray
glass cleaner directly on the mirror as that may cause
the liquid cleaner to enter the mirror housing.
Outside Manual Mirror
Adjust your outside mirrors so you can see a little of the
side of your vehicle and the area beside and behind
your vehicle from a comfortable driving position.
You can also fold the mirrors in before entering a car
wash. Pull the mirrors in toward the vehicle. Push
the mirrors back out whenfinished.
2-39
2003 - Sonoma OM

Outside Heated Mirrors
Your vehicle may be equipped with heated outside
rearview mirrors.
The heated mirror button is
located to the lower right
of the mode knob on
the climate control system.
The button has an
indicator light to indicate if
the heated mirror feature
is on or off.When the heated mirror feature is turned on, the
defogger will warm the mirrors to help clear them of
snow or condensation. The heated mirror feature
will turn off automatically when the mirror is clear.
Storage Areas
Glove Box
To open your glove box, lift the lever on the front of the
glove box and lower the door. The glove box should
not be open while you are driving.
2-41
2003 - Sonoma OM

The main components of your vehicle’s instrument
panel are the following:
A. Air Outlets
B. Instrument Panel Cluster
C. Electronic Transfer Case Switch (If Equipped)
D. Lamp Controls
E. Fog Lamp Button (If Equipped)
F. Brake Release
G. Turn Signal/Multifunction Lever
H. Horn
I. Passenger Air Bag Off Switch (If Equipped)
J. Ashtray
K. Climate Controls
L. Accessory Power Outlets (If Equipped)
M. Heated Outside Rearview Mirror Button (If Equipped)
N. Audio System
O. Glove BoxHazard Warning Flashers
Your hazard warning ashers let you warn others. They
also let police know you have a problem. Your front
and rear turn signal lamps will ash on and off.
3-3
2003 - Sonoma OM

Interior Lamps
Instrument Panel Brightness
This feature controls the brightness of the instrument
panel lights.
It is located on the driver’s side of your instrument panel
next to the exterior lamps control.
Turn the thumbwheel up to make your instrument panel
lights brighter or down to dim them. Turn the
thumbwheel all the way up to turn on the interior lamps.
Entry Lighting
Your vehicle is equipped with an entry lighting feature.
When any door is opened, the dome lamps will
come on if the DOME OVERRIDE button is in the out
position. If your vehicle is equipped with remote keyless
entry and all the doors are closed, or the front door
handles are lifted and released, the lamps will stay on
for a short period of time and will turn off automatically.
If you use your remote keyless entry transmitter to
unlock the vehicle, the interior lights will come on for a
short time whether or not the DOME OVERRIDE
button is in the out position.
Exit Lighting
With exit lighting, the interior lamps will come on when
you remove the key from the ignition to help you
see while exiting the vehicle. These lights will stay on
for a short period of time and then will go out, if the
DOME OVERRIDE button is in the out position.
Front Map Lamps
If your vehicle is a Crew Cab®and has front map
lamps, they are located in the overhead console. For all
other vehicles that have this feature, they are located
on the inside rearview mirror. The front map lights
that are located on the inside rearview mirror will
automatically come on for approximately 40 seconds
when the doors are unlocked with the remote keyless
entry transmitter (if equipped) or until the ignition key is
turned to RUN or ACCESSORY. The lamps will also
stay on for approximately 40 seconds after you exit the
vehicle, unless you lock the doors with the remote
keyless entry transmitter.
You can also turn the lamps on and off by pressing the
switch near each lamp.
3-14
2003 - Sonoma OM

Driving at Night
Night driving is more dangerous than day driving. One
reason is that some drivers are likely to be impaired—by
alcohol or drugs, with night vision problems, or by fatigue.
Here are some tips on night driving.
Drive defensively.
Don’t drink and drive.
Adjust your inside rearview mirror to reduce the
glare from headlamps behind you.
Since you can’t 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’re 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’re driving, don’t wear sunglasses at night. They may
cut down on glare from headlamps, but they also
make a lot of things invisible.
4-27
2003 - Sonoma OM

Malfunction Indicator Light................................3-29
Manual Lumbar Controls.................................... 1-4
Manual Seats................................................... 1-3
Manual Transmission.......................................2-22
Fluid..........................................................5-23
Operation...................................................2-28
Manual Transmission Check.............................6-27
Manual Windows............................................2-15
Manually Closing the Sunroof...........................2-53
Matching Transmitter(s) to Your Vehicle............... 2-6
Memory Seat.................................................2-54
Mexico, Central America and Caribbean
Islands/Countries (Except Puerto Rico
and U.S. Virgin Islands)................................. 7-4
Mirrors
Automatic Dimming Rearview........................2-39
Manual Rearview Mirror................................2-39
Outside Convex Mirror.................................2-40
Outside Heated Mirrors................................2-41
Outside Manual Mirror..................................2-39
Outside Power Mirrors
..................................2-40
Model Reference
................................................ vi
MyGMLink.com
................................................ 7-3
N
New Vehicle Break-In
......................................2-20
Normal Maintenance Replacement Parts
............5-96
O
Odometer......................................................3-23
Odometer, Trip...............................................3-23
Off-Road Recovery..........................................4-10
Oil
Engine.......................................................5-13
Pressure Gage............................................3-32
Older Children, Restraints................................1-30
One-Piece Composite Headlamp System............5-50
Online Owner Center........................................ 7-3
Operating Your All-Wheel-Drive Vehicle
Off Paved Roads.........................................4-13
Other Warning Devices...................................... 3-4
Outlet Adjustment............................................3-19
Outside
Convex Mirror.............................................2-40
Heated Mirrors............................................2-41
Manual Mirror.............................................2-39
Power Mirrors.............................................2-40
Overhead Console..........................................2-42
Owners, Canadian............................................... ii
Owner’s Information........................................7-10
P
Park (P)
Shifting Into................................................2-33
Shifting Out of............................................2-35
10
2003 - Sonoma OM