Page 302 of 331

Long Trip/Highway Scheduled Maintenance
7-39
67,500 Miles (112 500 km)
Change engine oil and filter (or every 12 months, whichever occurs first). 
An Emission Control Service. 
Lubricate chassis components (or every 12 months, whichever occurs first).
(See footnote #.)
Check rear axle fluid level and add fluid as needed.
Rotate tires. See ªTire Inspection and Rotationº in the Index for proper
rotation pattern and additional information. (See footnote +.)
75,000 Miles (125 000 km)
Change engine oil and filter (or every 12 months, whichever occurs first). 
An Emission Control Service. 
Lubricate chassis components (or every 12 months, whichever occurs first).
(See footnote #.)
Check rear axle fluid level and add fluid as needed.
Inspect shields and underhood insulation for damage or looseness. Adjust or
replace as required. This is a Noise Emission Control Service. Applicable only
to vehicles sold in the United States.
Rotate tires. See ªTire Inspection and Rotationº in the Index for proper
rotation pattern and additional information. (See footnote +.) 
(Continued)
ACTUAL
SERVICED BY:MILEAGE
DATE
ACTUAL
SERVICED BY:MILEAGE
DATE 
     
        
        Page 303 of 331

Long Trip/Highway Scheduled Maintenance
7-40
75,000 Miles (125 000 km) (Continued)
Diesel Engine Only: Check the air intake system installation to assure that
gaskets are properly sealed and that all hose connections, fasteners and other
components are tight. Also check to be sure that the air cleaner housing is
properly seated and the cover fits tightly. Tighten connections and fasteners or
replace damaged parts as necessary. This is a Noise Emission Control Service.
Applicable only to vehicles sold in the United States.
Diesel Engine Only: If your engine has a thermostatically controlled cooling
fan, inspect hoses and ducts for proper hook
-up (or every 12 months,
whichever occurs first). Be sure the valve works properly. This is a Noise
Emission Control Service. Applicable only to vehicles sold in the 
United States.
82,500 Miles (137 500 km)
Change engine oil and filter (or every 12 months, whichever occurs first). 
An Emission Control Service. 
Lubricate chassis components (or every 12 months, whichever occurs first).
(See footnote #.)
Check rear axle fluid level and add fluid as needed.
Rotate tires. See ªTire Inspection and Rotationº in the Index for proper
rotation pattern and additional information. (See footnote +.)ACTUAL
SERVICED BY:MILEAGE
DATE 
     
        
        Page 304 of 331
Long Trip/Highway Scheduled Maintenance
7-41
90,000 Miles (150 000 km)
Change engine oil and filter (or every 12 months, whichever occurs first). 
An Emission Control Service. 
Lubricate chassis components (or every 12 months, whichever occurs first).
(See footnote #.)
Check rear axle fluid level and add fluid as needed. Change axle fluid if the
vehicle is driven in high
-speed (above 40 mph or 70 km/h) conditions for
extended periods of time.
Clean and repack the front wheel bearings (or at each brake relining,
whichever occurs first).
Replace fuel filter. 
An Emission Control Service. (See footnote .)
Inspect shields and underhood insulation for damage or looseness. Adjust or
replace as required. This is a Noise Emission Control Service. Applicable only
to vehicles sold in the United States.
Rotate tires. See ªTire Inspection and Rotationº in the Index for proper
rotation pattern and additional information. (See footnote +.) 
(Continued)
ACTUAL
SERVICED BY:MILEAGE
DATE 
     
        
        Page 305 of 331

Long Trip/Highway Scheduled Maintenance
7-42
90,000 Miles (150 000 km) (Continued)
Diesel Engine Only: Check the air intake system installation to assure that
gaskets are properly sealed and that all hose connections, fasteners and other
components are tight. Also check to be sure that the air cleaner housing is
properly seated and the cover fits tightly. Tighten connections and fasteners or
replace damaged parts as necessary. This is a Noise Emission Control Service.
Applicable only to vehicles sold in the United States.
Diesel Engine Only: If your engine has a thermostatically controlled cooling
fan, inspect hoses and ducts for proper hook
-up (or every 12 months,
whichever occurs first). Be sure the valve works properly. This is a Noise
Emission Control Service. Applicable only to vehicles sold in the 
United States.
97,500 Miles (162 500 km)
Change engine oil and filter (or every 12 months, whichever occurs first). 
An Emission Control Service. 
Lubricate chassis components (or every 12 months, whichever occurs first).
(See footnote #.)
Check rear axle fluid level and add fluid as needed.
Rotate tires. See ªTire Inspection and Rotationº in the Index for proper
rotation pattern and additional information. (See footnote +.)ACTUAL
SERVICED BY:MILEAGE
DATE 
     
        
        Page 306 of 331
Long Trip/Highway Scheduled Maintenance
7-43
100,000 Miles (166 000 km)
Gasoline Engine Only: Inspect spark plug wires. 
An Emission Control Service. 
Gasoline Engine Only: Replace spark plugs. 
An Emission Control Service.
Change automatic transmission fluid and filter. Manual transmission fluid
doesn't require change.
150,000 Miles (240 000 km)
Drain, flush and refill cooling system (or every 60 months since last service,
whichever occurs first). See ªEngine Coolantº in the Index for what to use.
Inspect hoses. Clean radiator, condenser, pressure cap and neck. Pressure test
the cooling system and pressure cap. 
An Emission Control Service. 
ACTUAL
SERVICED BY:MILEAGE
DATE
ACTUAL
SERVICED BY:MILEAGE
DATE 
     
        
        Page 317 of 331
7-54
Part E: Maintenance Record
After the scheduled services are performed, record the date, odometer reading and who performed the service in the
boxes provided after the maintenance interval. Any additional information from ªOwner Checks and Servicesº or
ªPeriodic Maintenanceº can be added on the following record pages. Also, you should retain all maintenance receipts.
Your owner information portfolio is a convenient place to store them.
Maintenance Record
DATEODOMETER
READINGSERVICED BYMAINTENANCE PERFORMED 
     
        
        Page 331 of 331

8-12
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 specifications 
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.
Owner's Information
Owner publications are written specifically for owners 
and intended to provide basic operational information 
about the vehicle. The owner's manual will include the
Maintenance Schedule for all models.
In
-Portfolio: Includes a Portfolio, Owner's Manual and
Warranty Booklet.
RETAIL SELL PRICE: $35.00
Without Portfolio: Owner's Manual only.
RETAIL SELL PRICE: $25.00
Current and Past Model Order Forms
Service Publications are available for current and 
past model GM vehicles. To request an order form,
please specify year and model name of the vehicle.
ORDER TOLL FREE: 1-800-551-4123 ± Monday-Friday 8:00 AM ± 6:00 PM Eastern TimeVisit Helm, Inc. on the World Wide Web at: www.helminc.com For Credit Card Orders Only (VISA-MasterCard-Discover)
Helm, Incorporated  P.O. Box 07130  Detroit, MI 48207
Prices are subject to change without notice and without Note to Canadian Customers:  All listed prices are quoted in U.S. funds.
incurring obligation. Allow ample time for delivery. Canadian residents are to make checks payable in U.S. funds.