GMC 1999 Envoy, Owner'S Manual

Page: 344 / 384

Long Trip/Highway Scheduled Maintenance
yellow blue
7-32
45,000 Miles (75 000 km) (Continued)
– In hilly or mountainous terrain.
– When doing frequent trailer towing.
– Uses such as found in taxi, police or delivery service.
If you do not use your vehicle under any of these conditions, change the fluid
and filter every 50,000 miles (83 000 km).
j Rotate tires. See “Tire Inspection and Rotation” in the Index for proper
rotation pattern and additional information. (See fo.)
50,000 Miles (83 000 km)
j If you haven’t used your vehicle under severe conditions listed previously and,
therefore, haven’t changed your automatic transmission fluid, change both the
fluid and filter.
52,500 Miles (87 500 km)
j Change engine oil and filter (or every 12 months, whichever occurs first).
An Emission Control Service.
j Lubricate chassis components (or every 12 months, whichever occurs first).
(See footnote #.)
j Check rear/front axle fluid level and add fluid as needed. Check constant
velocity joints and axle seals for leaking. (See footnote **.)
j Rotate tires. See “Tire Inspection and Rotation” in the Index for proper
rotation pattern and additional information. (See fo.)
ACTUAL
SERVICED BY:
MILEAGE
DATE
ACTUAL
SERVICED BY:
MILEAGE
DATE