2003 GMC SAVANA tow

100,000 Miles (166 000 km)
❑Inspect spark plug wires.An Emission Control
Service.
❑Replace spark plugs.An Emission Control Service.
❑Change automatic transmissionuid andlter if the
vehicle’s GVWR is over 8600 lbs or if the vehicle is
mainly driven under one or more of these conditions:
In heavy city traffic where the outside
temperature regularly reaches 90°F (32°C)
or higher.
In hilly or mountainous terrain.
When doing frequent trailer towing.
Uses such as found in taxi, police or delivery
service.
❑If you haven’t used your vehicle under severe service
conditions listed previously and, therefore, haven’t
changed your automatic transmissionuid, change
both theuid andlter.
❑Inspect Positive Crankcase Ventilation (PCV) valve.
An Emission Control Service.
150,000 Miles (240 000 km)
❑Drain,ush and rell cooling system (or every
60 months since last service, whichever occursrst).
SeeEngine Coolant on page 5-22for what to use.
Inspect hoses. Clean radiator, condenser, pressure
cap and neck. Pressure test the cooling system
and pressure cap.An Emission Control Service.
❑Inspect engine accessory drive belt.An Emission
Control Service.
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2003 - Savana OM

All Overseas Locations
Please contact the local General Motors Business Unit.
Mexico, Central America and Caribbean
Islands/Countries (Except Puerto Rico
and U.S. Virgin Islands)
General Motors de Mexico, S. de R.L. de C.V.
Customer Assistance Center
Paseo de la Reforma # 2740
Col. Lomas de Bezares
C.P. 11910, Mexico, D.F.
01-800-508-0000
Long Distance: 011-52-53 29 0 800
GM Mobility Program for Persons
with Disabilities
This program, available to
qualied applicants, can
reimburse you up to
$1,000 toward aftermarket
driver or passenger
adaptive equipment you
may require for your
vehicle (hand controls,
wheelchair/scooter
lifts, etc.).
This program can also provide you with free resource
information, such as area driver assessment centers and
mobility equipment installers. The program is available
for a limited period of time from the date of vehicle
purchase/lease. See your dealer for more details or call
the GM Mobility Assistance Center at 1-800-323-9935.
Text telephone (TTY) users, call 1-800-833-9935.
GM of Canada also has a Mobility Program. Call
1-800-GM-DRIVE (463-7483) for details. All TTY users
call 1-800-263-3830.
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2003 - Savana OM

Roadside Assistance Program
GMC’s Roadside Assistance Provides stranded owners
with over-the-phone roadside repairs, location of the
nearest GMC dealer or the following special services:
Flat Tire Change:Installation of spare tire will be
covered at no charge (customer is responsible for repair
or replacement of tire).
Fuel Delivery:Delivery of enough fuel for the customer
to get to the nearest service station (up to $5.00)
will be covered.
Jump Start:No-start situations which require a battery
jump start will be covered at no charge.
Lock Out:Replacement keys or locksmith service will be
covered at no charge if you are unable to gain entry
into your vehicle. Delivery of the replacement key will be
covered within 10 miles (16 km).
Emergency Towing Service:Towing to the nearest GMC
dealer for warranty related disablements will be covered.
Trip Routing:Custom-made, computerized highlighted
maps using the most direct or scenic route are provided
free of charge. Maps include points of interest and a
list of GMC dealers along the route. Also included is
a list of hotels along the route that are discounted
through affiliation with“Quest International.”Trip Routing
is available through Roadside Assistance by calling
1-800-GMC-8782 (462-8782). Please be prepared to
provide your Vehicle Identication Number (VIN).
Allowve working days for fulllment.Trip Interruption Assistance:GMC will reimburse any
reasonable trip interruption expenses (up to $500.00)
when directly associated with warranty disablement.
Trip interruption service covers expenses such as meals
and overnight lodging if vehicle disablement occurs at
least 150 miles (240 km) from your home or rental
property. You will be required to obtain prior approval
from GMC Roadside Assistance and pay for expenses
at the time of disablement. Original receipts should
be submitted to GMC Roadside Assistance for
reimbursement. A service representative will provide
assistance when you call.
The Roadside Assistance services listed are available to
retail lease customers operating 2003 GMC light duty
trucks for a period of 3 years/36,000 miles (60,000 km).
All services must be pre-arranged by GMC Roadside
Assistance.
Over-the-phone assistance, such as providing the name
of the closest dealer or minor technical advice, etc.,
is available to all owner/operators of GMC trucks,
regardless of vehicle or mileage.
Just dial GMC Roadside Assistance at 1-800-GMC-8782
(1-800-462-8782, Roadside Assistance prompt) to
reach a qualied representative who can assist you.
Text telephone (TTY) users, call 1-888-889-2438.
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2003 - Savana OM

Reporting Safety Defects to the
Canadian Government
If you live in Canada, and you believe that your vehicle
has a safety defect, you should immediately notify
Transport Canada, in addition to notifying General
Motors of Canada Limited. You may write to:
Transport Canada
330 Sparks Street
Tower C
Ottawa, Ontario K1A 0N5
Reporting Safety Defects to
General Motors
In addition to notifying NHTSA (or Transport Canada) in
a situation like this, we certainly hope you’ll notify us.
Please call us at 1-800-GMC-8782 (1-800-462-8782),
or write:
Pontiac-GMC Customer Assistance Center
P.O. Box 33172
Detroit, MI 48232-5172
In Canada, please call us at 1-800-263-3777 (English)
or 1-800-263-7854 (French). Or, write:
General Motors of Canada Limited
Customer Communication Centre, 163-005
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
Service Publications Ordering
Information
Service Manuals
Service Manuals have the diagnosis and repair
information on engines, transmission, axle, suspension,
brakes, electrical, steering, body, etc.
RETAIL SELL PRICE: $120.00
Transmission, Transaxle, Transfer
Case Unit Repair Manual
This manual provides information on unit repair service
procedures, adjustments, and specications for GM
transmissions, transaxles, and transfer cases.
RETAIL SELL PRICE: $50.00
Service Bulletins
Service Bulletins give technical service information
needed to knowledgeably service General Motors cars
and trucks. Each bulletin contains instructions to
assist in the diagnosis and service of your vehicle.
In Canada, information pertaining to Product Service
Bulletins can be obtained by contacting your General
Motors dealer or by calling 1-800-GM-DRIVE
(1-800-463-7483).
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2003 - Savana OM

Light (cont.)
Malfunction Indicator....................................3-33
Safety Belt Reminder...................................3-26
Security.....................................................3-38
Tow/Haul Mode ...........................................3-39
Loading Your Vehicle.......................................4-29
Locking Rear Axle............................................ 4-9
Lockout Protection..........................................2-11
Locks
Cargo Door Relocking.................................... 2-9
Door ........................................................... 2-8
Leaving Your Vehicle....................................2-11
Lockout Protection.......................................2-11
Power Door .................................................. 2-9
Rear Door Security Locks.............................2-10
Loss of Control...............................................4-13
Low Coolant Warning Light..............................3-33
M
Maintenance, Normal Replacement Parts..........5-100
Maintenance Schedule
At Each Fuel Fill.........................................6-12
At Least Once a Month................................6-12
At Least Once a Year..................................6-13
At Least Twice a Year..................................6-13Maintenance Schedule (cont.)
At the First 100, 1,000 and 6,000 Miles
(160, 1 600 and 10 000km).......................6-12
Brake System Inspection..............................6-17
Engine Cooling System Inspection.................6-16
Exhaust System Inspection...........................6-16
Fuel System Inspection................................6-16
How This Section is Organized....................... 6-3
Introduction.................................................. 6-2
Maintenance Requirements............................. 6-2
Part A - Scheduled Maintenance Services......... 6-4
Part B - Owner Checks and Services.............6-12
Part C - Periodic Maintenance Inspections......6-16
PartD-Recommended Fluids and
Lubricants...............................................6-18
PartE-Maintenance Record........................6-20
Rear Axle Service........................................6-17
Scheduled Maintenance................................. 6-5
Steering and Suspension Inspection...............6-16
Throttle System Inspection............................6-17
Transfer Case and Front Axle
(All-Wheel Drive) Inspection.......................6-17
Using Your................................................... 6-4
Your Vehicle and the Environment................... 6-2
Maintenance When Trailer Towing.....................4-45
Making Turns.................................................4-43
Malfunction Indicator Light................................3-33
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Radios (cont.)
Radio with CD............................................3-45
Radio with Six-Disc CD................................3-60
Rear Seat Audio..........................................3-71
Setting the Time for Radios with Radio
Data Systems (RDS)................................3-41
Setting the Time for Radios without Radio
Data Systems (RDS)................................3-41
Theft-Deterrent............................................3-73
Understanding Reception..............................3-74
RDS Messages......................................3-54, 3-65
Reading Lamps..............................................3-15
Rear Air Conditioning and Heating System.........3-19
Rear Axle......................................................5-47
Locking........................................................ 4-9
Service......................................................6-17
Rear Door Security Locks................................2-10
Rear Doors....................................................2-15
Rear Heating System......................................3-18
Rear Safety Belt Comfort Guides......................1-29
Rear Seat Audio (RSA)....................................3-71
Rear Seat Operation......................................... 1-5
Rear Seat Outside Passenger Positions.............1-26
Rear Seat Passengers, Safety Belts..................1-26
Rear Seat Radio Controls................................3-72
Rear Window Defogger....................................3-22
Rearview Mirrors.............................................2-32Reclining Seatbacks.......................................... 1-3
Recreational Vehicle Towing.............................4-29
Remote Keyless Entry System............................ 2-4
Remote Keyless Entry System, Operation............ 2-5
Removing the Flat Tire and Installing the
Spare Tire..................................................5-73
Removing the Rear Seat................................... 1-5
Removing the Spare Tire and Tools...................5-67
Removing the Wheel Covers............................5-73
Replacement Bulbs.........................................5-54
Replacing Brake System Parts..........................5-40
Replacing Restraint System Parts
After a Crash..............................................1-76
Replacing the Rear Seats.................................. 1-7
Reporting Safety Defects
Canadian Government..................................7-10
General Motors...........................................7-10
United States Government.............................. 7-9
Restraint System Check...................................6-13
Checking Your Restraint Systems...................1-75
Replacing Restraint System Parts
After a Crash..........................................1-76
Restraint Systems
Checking....................................................1-75
Replacing Parts...........................................1-76
Resynchronization............................................. 2-6
Retained Accessory Power (RAP)......................2-21
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2003 - Savana OM

To Use the Engine Coolant Heater....................2-23
Top of the Instrument Panel.............................5-84
Top Strap......................................................1-49
Top Strap Anchor Location...............................1-50
Torque Lock...................................................2-29
Total Weight on Your Vehicle’s Tires..................4-40
Tow/Haul Mode ...............................................4-33
Tow/Haul Mode Light.......................................3-39
Towing
Recreational Vehicle.....................................4-29
Towing a Trailer..........................................4-31
Your Vehicle...............................................4-29
Trailer Brakes.................................................4-42
Trailer Wiring Harness.....................................4-46
Transfer Case................................................5-46
Transmission
Fluid, Automatic...........................................5-19
Transmission Operation, Automatic....................2-24
Transmission, Transaxle, Transfer Case Unit
Repair Manual............................................7-10
Transportation Options...................................... 7-8
Trip Odometer................................................3-26
Turn and Lane Change Signals.......................... 3-6
Turn Signal/Multifunction Lever........................... 3-6
Turn Signals When Towing a Trailer..................4-44U
Underbody Flushing Service.............................6-15
Understanding Radio Reception........................3-74
Uniform Tire Quality Grading............................5-62
United States................................................... 7-4
Using Cleaner on Fabric..................................5-83
Using RDS............................................3-52, 3-63
Using Song List Mode.....................................3-69
V
Vehicle
Control........................................................ 4-6
Damage Warnings........................................... iv
Loading......................................................4-29
Symbols......................................................... iv
Vehicle Identification
Number (VIN).............................................5-90
Service Parts Identification Label...................5-91
Vehicle Storage..............................................5-40
Vinyl.............................................................5-84
Visor Vanity Mirror..........................................2-19
Visors...........................................................2-19
Voltmeter Gage..............................................3-30
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2003 - Savana OM