GMC 2001 Yukon XL Owner's Manual page 384

Scheduled Maintenance
Engine Oil and Chassis Lubrication
Scheduled Maintenance
Change engine oil and filter as indicated by the
GM Oil Life System t (or every 12 months,
whichever occurs first). Reset the system. The system
will show you when to change the oil
3,000 miles (5 000 km) and 10,000 miles (16 000 km)
since your last oil change. Under severe conditions, the
indicator may come on before 3,000 miles (5 000 km).
Never drive your vehicle more than 10,000 miles
(16 000 km) or 12 months without an oil and
filter change.
The system won't detect dust in the oil. So if you drive
in a dusty area, be sure to change your oil and filter
every 3,000 miles (5 000 km) or sooner if the CHANGE
ENGINE OIL message appears. Remember to reset
the Oil Life System when the oil and filter have been
changed. See "Oil Life System" in the Index for
information on resetting.
An Emission Control Service.
7-6
Lubricate 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 10 _ F (
--
usually between
could be damaged.
12 _ C) or higher, or they
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