Long Trip/Highway Scheduled Maintenance - Pontiac 2005 Bonneville Owner's Manual

Rotate tires. See Tire Inspection and Rotation on
page 5-85 for proper rotation pattern and additional
information. (See footnote @.) (See footnote +.)
99,000 Miles (165 000 km)
Change engine oil and filter (or every 3 months,
whichever occurs first). An Emission Control Service.
(See footnote *.)
100,000 Miles (166 000 km)
V6 engine only: Inspect spark plug wires. An
Emission Control Service.
Replace spark plugs. An Emission Control Service.
Change automatic transaxle fluid and filter 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 have not used your vehicle under severe service
conditions listed previously and, therefore, have not
changed your automatic transaxle fluid, change both the
fluid and filter.
150,000 Miles (240 000 km)
Drain, flush and refill cooling system (or every
60 months since last service, whichever occurs first).
See Engine Coolant (3.8L V6 Engine) on page 5-31
or Engine Coolant (4.6L V8 Engine) on page 5-34 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.
Inspect engine accessory drive belt. An Emission
Control Service.
Long Trip/Highway Scheduled
Maintenance
The services shown in this schedule up to 100,000 miles
(166 000 km) should be repeated after 100,000 miles
(166 000 km) at the same intervals for the life of
this vehicle. The services shown at 150,000 miles
(240 000 km) should be repeated at the same interval
after 150,000 miles (240 000 km) for the life of this
vehicle.
See Part B: Owner Checks and Services on page 6-19
and Part C: Periodic Maintenance Inspections on
page 6-23.
6-13