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Scheduled Maintenance
7-15
j Change automatic transmission 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.
j If you haven’t used your vehicle under severe service conditions listed
previously and, therefore, haven’t changed your automatic transmission fluid,
change both the fluid and filter.
j Inspect Positive Crankcase Ventilation (PCV) valve.
An Emission Control Service.
150,000 Miles (240 000 km)
j Drain, flush and refill cooling system (or every 60 months since last service,
whichever occurs first). See “Engine Coolant” 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
Summary of Contents for 2001 Denali
Page 1: ......
Page 2: ......
Page 12: ...x Model Reference This manual covers these models Denali Denali XL ...
Page 38: ...1 25 Put someone on it Get it up to speed Then stop the vehicle The rider doesn t stop ...
Page 149: ...2 62 The Instrument Panel Your Information System ...
Page 351: ...6 63 ...
Page 362: ...Scheduled Maintenance 7 7 ...
Page 363: ...Scheduled Maintenance 7 8 ...
Page 381: ...7 26 Maintenance Record DATE ODOMETER READING SERVICED BY MAINTENANCE PERFORMED ...