Footnotes — Maintenance Schedule Additional Required Services — Normal
a) Check all fuel and vapor lines and hoses for proper hook-up, routing, and condition. Check that the purge valve, if the vehicle has one, works properly. Replace as needed.
b) Or every four years, whichever comes first.
c) Or every five years, whichever comes first. See Cooling System .
d) Or every 10 years, whichever comes first. Inspect for fraying, excessive cracking, or damage; replace, if needed.

See also:
Windshield, Backglass, and WiperBlades
If the windshield is not clear after using the
windshield washer, or if the wiper blade chatters
when running, wax, sap or other material may
be on the blade or windshield.
Clean the outside of ...
Wheel Alignment and Tire Balance
The tires and wheels were aligned and balanced at the factory to provide the
longest tire life and best overall performance. Adjustments to wheel alignment and
tire balancing will not be necessary ...
OnStar®
If the vehicle is equipped with an
active OnStar system, that system
may also record data in crash or
near crash-like situations. The
OnStar Terms and Conditions
provides information on data ...
