Normal Vehicle Use
The maintenance instructions contained in this Maintenance Schedule are based
on the assumption that the vehicle will be used as designed:
| • | Carry passengers and cargo within the recommended limitations as indicated
on the Tire Placard located on the edge of the driver's door. |
| • | Are driven on reasonable road surfaces within legal driving limits. |
| • | Driven off-road in the recommended manner. For information on the recommended
driving manners, refer to the Owner's Manual |
| • | On unleaded gasoline of the recommended type. For information on the proper
type of fuel to use, refer to the Owner's Manual. |
Maintenance Schedule Intervals
The services shown in this schedule up to 166 000 km (100,000 miles)
should be performed after 166 000 km (100,000 miles) at the same
intervals. The services shown in this schedule to be performed at 240 000 km
(150,000 miles) should be performed after 240 000 km (150,000 miles)
at the same intervals.
For explanations of the maintenance inspections and services included in this
Maintenance Schedule, refer to
Explanation of Scheduled Services
.
For additional maintenance inspections and services which are not included in
this Maintenance Schedule, refer to
Periodic Maintenance Inspection
.
Maintenance Schedule Engine Oil Change Intervals
This vehicle is equipped with a GM Oil Life System ™. The GM Oil
Life System ™ will show when to change the engine oil and oil filter.
This will usually occur between 5 000 km (3,000 miles) and 16 000 km
(10,000 miles) since the last oil change. Under severe conditions, the indicator
may come on before 5 000 km (3,000 miles).
Never drive the vehicle more than 16 000 km (10,000 miles)
or 12 months without an oil and oil filter change. The system will not detect
dust in the oil. If the vehicle is driven in a dusty area, be sure to change the oil
and oil filter every 5 000 km (3,000 miles) or sooner if the
CHANGE OIL SOON indicator comes on. Reset the Oil Life System when the oil and filter
have been changed.
This vehicle is equipped with an engine oil life monitor. For description and
resetting information, refer to
GM Oil Life System Resetting
in Maintenance and Lubrication.
This is an Emission Control Service.
Chassis Lubrication
Lubricate the chassis components with each engine oil and filter change. Lubricate
the front suspension, ball joints, steering linkage. transmission shift linkage, transfer
case shift linkage, parking brake cable guides, and brake front axle. Ball joints
should not be lubricated unless their temperature is -12°C (10°F) or higher,
or they could be damaged.
Footnotes
† The U.S. Environmental Protection Agency or the California Air
Resources Board has determined that the failure to perform this maintenance item will
not nullify the emission warranty or limit recall liability prior to the completion
of the vehicle's useful life. We, however, urge that all recommended maintenance services
be performed at the indicated intervals and the maintenance be recorded.
+ A good time to check the brakes is during tire rotation. Refer to
Explanation of Scheduled Services
in Maintenance and
Lubrication.
Scheduled Maintenance
12 500 Km (7,500 Miles)
| • | Inspect rear/front axle fluid level and add fluid as needed. Check constant
velocity joints and axle seals for leaking. |
25 000 Km (15,000 Miles)
| • | Inspect engine air cleaner filter if you are driving in dusty conditions.
Replace filter if necessary. |
| | This is an Emission Control Service. † |
| • | Inspect rear/front axle fluid level. Add fluid as needed. Inspect the
constant velocity joints and the axle seals for leaking. |
37 500 Km (22,500 Miles)
| • | Inspect the rear/front axle fluid level. Add fluid as needed. Inspect
the constant velocity joints and the axle seals for leaking. |
50 000 Km (30,000 Miles)
| • | Inspect the rear/front axle fluid level. Add fluid as needed. Inspect
the constant velocity joints and the axle seals for leaking. |
| • | Replace the fuel filter. |
| | This is an Emission Control Service. † |
| • | Replace engine air cleaner filter. |
| | This is an Emission Control
Service. † |
62 500 Km (37,500 Miles)
| • | Inspect the rear/front axle fluid level. Add fluid as needed. Inspect
the constant velocity joints and the axle seals for leaking. |
75 000 Km (45,000 Miles)
| • | Inspect the rear/front axle fluid level. Add fluid as needed. Inspect
the constant velocity joints and the axle seals for leaking. |
83 000 Km (50,000 Miles)
| • | Change the automatic transmission fluid and filter 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
32°C (90°F) or higher |
| • | In hilly or mountainous terrain |
| • | When doing frequent trailer towing |
| • | Uses such as found in taxi, police or delivery service |
| • | Allison
Transmission 8.1 Liter Engine Only: If vehicle is not used under any of these conditions,
change the fluid and the filter at 166 000 km (100,000 miles). |
| • | Change transfer case fluid. |
87 500 Km (52,500 Miles)
| • | Inspect the rear/front axle fluid level. Add fluid as needed. Inspect
the constant velocity joints and the axle seals for leaking. |
100 000 Km (60,000 Miles)
| • | Inspect the rear/front axle fluid level. Add fluid as needed. Inspect
the constant velocity joints and the axle seals for leaking. |
| • | Replace the fuel filter. |
| | This is an Emission Control Service. † |
| • | Replace engine air cleaner filter. |
| | This is an Emission Control
Service. † |
| • | Inspect the Evaporative Control System. Inspect all the fuel and vapor
lines and the hoses for proper for proper hook-up, routing and condition. Ensure that
the purge valve works properly, if equipped. Replace the components as needed. |
| | This is an Emission Control Service. † |
112 500 Km (67,500 Miles)
| • | Inspect the rear/front axle fluid level. Add fluid as needed. Inspect
the constant velocity joints and the axle seals for leaking. |
125 000 Km (75,000 Miles)
| • | Inspect engine air cleaner filter if you are driving in dusty conditions.
Replace filter if necessary. |
| | This is an Emission Control Service. † |
| • | Inspect the rear/front axle fluid level. Add fluid as needed. Inspect
the constant velocity joints and the axle seals for leaking. |
137 500 Km (82,500 Miles)
| • | Inspect the rear/front axle fluid level. Add fluid as needed. Inspect
the constant velocity joints and the axle seals for leaking. |
150 000 Km (90,000 Miles)
| • | Inspect the rear/front axle fluid level. Add fluid as needed. Inspect
the constant velocity joints and the axle seals for leaking. |
| • | Replace the fuel filter. |
| | This is an Emission Control Service. † |
| • | Replace engine air cleaner filter. |
| | This is an Emission Control
Service. † |
162 500 Km (97,500 Miles)
| • | Inspect the rear/front axle fluid level. Add fluid as needed. Inspect
the constant velocity joints and the axle seals for leaking. |
166 000 Km (100,000 Miles)
| • | Inspect the spark plug wires. |
| | This is an Emission Control
Service. |
| • | Replace the spark plugs. |
| | This is an Emission Control Service. |
| • | Change the automatic transmission fluid and filter if the vehicle's GVWR
is over 8600 lbs. or if the vehicle is driven under one or more of these conditions: |
| - | In heavy city traffic where the outside temperature regularly reaches
32°C (90°F) or higher |
| - | In hilly or mountainous terrain |
| - | When doing frequent trailer towing |
| - | Uses such as found in taxi, police or delivery service |
| • | If vehicle has not been used under severe service conditions listed previously
and, therefore, the automatic transmission fluid has not been changed, change both
the fluid and filter. |
| • | Change transfer case fluid. |
| • | Except 8.1L V8 Engine: Inspect the positive crankcase ventilation
(PCV) valve. |
| | This is an Emission Control Service. |
240 000 Km (150,000 Miles)
| • | Drain, flush and refill the cooling system (or every 60 months since the
last service, whichever comes first). |
| • | Clean the following components: |
| • | Pressure test the cooling system and the pressure cap. |
| | This
is an Emission Control Service. |
