Chevrolet Silverado 1500 Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico/Paraguay-14632303) - 2021 - CRC - 11/9/20
Service and Maintenance
413
Footnotes
—
Maintenance Schedule
Additional Required Services - Normal
(1)
Or every four years, whichever comes
first. If driving in dusty conditions, inspect
the filter at each oil change or more often
as needed. See
(2)
Or every two years, whichever comes
first. More frequent replacement may be
needed if the vehicle is driven in areas with
heavy traffic, poor air quality, areas with
high dust levels or are sensitive to
environmental allergens. Filter replacement
may also be needed if you notice reduced
airflow, windows fogging up, or odors. Your
local GM Service location can help you
determine when it is the right time to
replace your filter.
(3)
Visually check all fuel and vapor lines
and hoses for proper attachment,
connection, routing, and condition.
(4)
Do not directly power wash the transfer
case and/or front/rear axle output seals.
High pressure water can overcome the seals
and contaminate the fluid. Contaminated
fluid will decrease the life of the transfer
case and/or drive axles and should be
replaced.
(5)
Or every five years, whichever comes
first. See
.
(6)
Or every 10 years, whichever comes first.
Inspect for fraying, excessive cracking,
or damage; replace, if needed.
(7)
Replace brake fluid every five years. See
(8)
Or every 12 months, whichever comes
first. See
(9)
Or every 10 years, whichever comes first.
See
(10)
Replace air conditioning desiccant every
seven years.