Maintenance Schedule Gas Engine
Using The Maintenance Schedule
Because of the different ways GM vehicles are used, maintenance needs
vary. More frequent maintenance intervals than found in this manual may by
needed. When reading this section, keep in mind the conditions under which
the vehicle is operated, and adjust the maintenance intervals accordingly.
The proper fluids and lubricants to use are listed in Fluid and Lubricant
Recommendations. Use the proper fluids and lubricants whenever servicing
this vehicle.
The maintenance schedules found in this manual are for vehicles that:
| • | Carry passengers and cargo within recommended limits. |
| • | Are driven on reasonable road surfaces within legal driving limits. |
| • | Are driven off-road in the recommended manner. Refer to the Owner's
Manual. |
Selecting The Right Schedule
First you will need to decide which of the two schedules is right for
your vehicle. Diesel engine vehicles have different maintenance requirements
than gasoline engines. If your vehicle has a diesel engine, follow a
schedule designated for diesel engine vehicles only.
Short Trip/City Definition -- Gasoline Engines
Follow the Short Trip/City maintenance schedule if any one of these
are true:
| • | Most trips are less than 8 to 16 km (5 to 10 miles).
This is particularly important when outside temperatures are below 0°C
(32°F). |
| • | Most trips include extensive idling (such as frequent driving
in stop and go traffic). |
| • | The vehicle is operated in dusty areas, or off-road frequently. |
| • | Trailer towing or using a carrier on top of the vehicle frequently. |
| • | The vehicle is used for delivery service, police, taxi, or other
commercial application. These conditions cause engine oil to break down sooner. |
Short Trip/City Summary - Gasoline Engines
The following intervals only summarize maintenance summarize maintenance
schedules. Be sure to follow the complete scheduled maintenance.
Every 5 000 Kilometers (3, 000 Miles)
| • | Engine Oil and Filter Change (or 3 months, whichever comes first) |
| • | Chassis Lubrication (or 3 months, whichever comes first) |
| • | Drive Axle Service (or 3 months, whichever comes first) |
Every 10 000 Kilometers (6, 000 Miles)
Tire Rotation
Every 25 000 Kilometers (15, 000 Miles)
| • | Shields and Underhood Insulation Inspection (GVWR above 4 530 kg
(10, 000 lbs) only) |
| • | Front Wheel Bearing Repack (RWD only) (or at every brake relining,
whichever occurs first) |
Every 50 000 Kilometers (30, 000 Miles)
Fuel Filter Replacement
Every 83 000 Kilometers (50, 000 Miles)
Automatic Transmission Service (vehicle over 3 895 kg
(8, 600 lbs) GVWR or driven under severe conditions only)
Every 100 000 Kilometers (60, 000 Miles)
| • | Engine Accessory Drive Belt Inspection |
| • | Fuel tank, Cap and Lines Inspection |
| • | Exhaust Gas Recirculation System Inspection |
| • | Evaporative Control System Inspection |
Every 166 000 Kilometers (100, 000 Miles)
| • | Spark Plug Wire Inspection |
| • | Automatic Transmission Service (normal conditions) |
| • | Positive Crankcase Ventilation (PCV) Valve Inspection |
Every 240 000 Kilometers (150, 000 Miles)
Cooling System Service (or every 60 months, whichever occurs first)
Long Trip/Highway Definition - Gasoline Engines
Follow this scheduled maintenance only if none of the conditions from
the Short Trip/City Scheduled Maintenance is true. Do not use this schedule
if one of the following conditions apply:
| • | The vehicle is used for towing trailers. |
| • | The vehicle is driven in a dusty area. |
| • | The vehicle is used off of paved roads. |
Driving a vehicle with a fully warmed engine under highway conditions
causes the engine oil to break down slower.
Long Trip/Highway Summary - Gasoline Engines
Follow the Long Trip/Highway maintenance schedule ONLY if none of the
conditions from the Short Trip/City maintenance schedule is true.
These service intervals summarize the Long Trip/Highway Maintenance
Schedule.
Every 12 500 Kilometers (7, 500 Miles)
| • | Engine Oil and Filter Change (or 12 months, whichever comes first) |
| • | Chassis Lubrication (or 12 months, whichever comes first) |
Every 25 000 Kilometers (15, 000 Miles)
Shields and Underhood Insulation Inspection (GVWR above 4 530 kg
(10, 000 lbs) only)
Every 50 000 Kilometers (30, 000 Miles)
| • | Fuel Filter Replacement |
| • | Front Wheel Bearing Repack ( at every brake relining, whichever
occurs first) |
Every 83 000 Kilometers (50, 000 Miles)
Automatic Transmission Service (vehicle over 3 900 kg
(8, 600 lbs) GVWR or driven under severe conditions only)
Every 100 000 Kilometers (60, 000 Miles)
| • | Engine Accessory Drive Belt Inspection |
| • | Fuel Tank, Cap and Lines Inspection |
| • | Exhaust Gas Recirculation System Inspection |
| • | Evaporative Control System Inspection |
Every 166 000 Kilometers (100, 000 Miles)
| • | Spark Plug Wire Inspection |
| • | Automatic Transmission Service (normal conditions) |
| • | Positive Crankcase Ventilation (PCV) Valve Inspection |
Every 240 000 Kilometers (150, 000 Miles)
Cooling System Service (or every 60 months, whichever occurs first)
Maintenance Schedule Diesel Engine
Using The Maintenance Schedule
Because of the different ways GM vehicles are used, maintenance needs
vary. More frequent maintenance intervals than found in this manual may by
needed. When reading this section, keep in mind the conditions under which
the vehicle is operated, and adjust the maintenance intervals accordingly.
Use the proper fluids and lubricants whenever servicing this vehicle.
The maintenance schedules found in this manual are for vehicles that:
| • | Are driven on reasonable road surfaces within legal driving limits. |
| • | Are driven off-road in the recommended manner. |
| • | Use recommended unleaded fuel. |
Selecting The Right Schedule
First you will need to decide which of the two schedules is right for
your vehicle. Diesel engine vehicles have different maintenance requirements
than gasoline engines. If your vehicle has a diesel engine, follow the schedule
designated for diesel engines only.
Short Trip/City Definition - Diesel Engines
Follow the Short Trip/City Scheduled Maintenance only if any one of
the following conditions is true for your vehicle:
| • | Most trips are less than 8 - 16 km (5 - 10 miles). |
| | This is particularly important when the outside temperature is below
0°C (32°F). |
| • | Most trips include extensive idling (such as frequent driving
in stop-and-go traffic). |
| • | The vehicle is operated in dusty areas or off-road frequently. |
| • | Trailer towing or using a carrier on top of the vehicle frequently. |
| • | The vehicle is used for delivery service, police, taxi, or other
commercial application. |
These conditions cause engine oil to break down sooner.
Short Trip/City Summary - Diesel Engines
The following intervals only summarize maintenance summarize maintenance
schedules. Be sure to follow the complete scheduled maintenance. Refer to
Maintenance Schedule - Short Trip/City
.
Every 4 000 Kilometers (2, 500 Miles)
| • | Engine Oil and Filter Change (or 3 months, whichever comes first) |
| • | Chassis Lubrication (or 3 months, whichever comes first) |
| • | Drive Axle Service (or 3 months, whichever comes first) |
Every 12 000 Kilometers (7, 500 Miles)
Tire Rotation
Every 16 000 Kilometers (10, 000 Miles)
| • | Shields And Underhood Insulation Inspection. |
| • | Thermostatically Controlled Engine Cooling Fan Check (or every
12 months, whichever occurs first) |
| • | Air Intake System Inspection |
Every 12 000 Kilometers (7, 500 Miles)
Tire Rotation
Every 24 000 Kilometers (15, 000 Miles)
Front Wheel Bearing Repack (RWD only) (or at each brake relining)
Every 40 000 Kilometers (25, 000 Miles)
Fuel Cap Replacement (If driving in dusty conditions)
Every 48 000 Kilometers (30, 000 Miles)
Fuel Filter Replacement
Every 80 000 Kilometers (50, 000 Miles)
Automatic Transmission Service
Every 96 000 Kilometers (60, 000 Miles)
| • | Crankcase Depression Regulator Valve (CDRV) System Check |
| • | Engine Accessory Drive Belt Inspection |
| • | Exhaust Gas Recirculation (EGR) System Inspection (if equipped) |
Every 240 000 Kilometers (150, 000 Miles)
Cooling System Service (or every 60 months, whichever occurs first)
Long Trip/Highway Definition - Diesel Engines
Follow this scheduled maintenance only if none of the conditions from
the Short Trip/City Scheduled Maintenance is true. Do not use this schedule
if one of the following conditions apply:
| • | The vehicle is used for towing trailers. |
| • | The vehicle is driven in a dusty area. |
| • | The vehicle is used off of paved roads. |
Driving a vehicle with a fully warmed engine under highway conditions
cause engine oil to break down slower.
Long Trip/Highway Summary - Diesel Engines
Follow the Long Trip/Highway maintenance schedule ONLY if none of the
conditions from the Short Trip/City maintenance schedule is true.
The following intervals only summarize the Long Trip/Highway Maintenance
Schedule.
Every 8 000 Kilometers (5, 000 Miles)
| • | Engine Oil and Filter Change (or 12 every months, whichever comes
first) |
| • | Chassis Lubrication (or every 12 months, whichever comes first) |
Every 8 000 Kilometers (5, 000 Miles) -
Then Every 16 000 Kilometers (10, 000 Miles)
Tire Rotation
Every 16 000 Kilometers (10, 000 Miles)
| • | Shields And Underhood Insulation Inspection. |
| • | Thermostatically Controlled Engine Cooling Fan Check (or every
12 months, whichever occurs first) |
| • | Air Intake System Inspection |
Every 48 000 Kilometers (30, 000 Miles)
| • | Front Wheel Bearing Repack (RWD only) (or at each brake relining) |
| • | Fuel Filter Replacement |
Every 80 000 Kilometers (50, 000 Miles)
Automatic Transmission Service
Every 96 000 Kilometers (60, 000 Miles)
| • | Crankcase Depression Regulator Valve (CDRV) System Check |
| • | Engine Accessory Drive Belt Inspection |
| • | Exhaust Gas Recirculation (EGR) System Inspection (if equipped) |
Every 240 000 Kilometers (150, 000 Miles)
Cooling System Service (or every 60 months, whichever occurs first)
