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:
OnStar® Steering Wheel Controls
Your vehicle may have a Talk/Mute button that
can be used to interact with OnStar® Hands-Free
Calling.
On some vehicles, you may have to hold the
button for a few seconds and give the command
†...
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 colle ...
Delayed Locking
When locking the doors with the
power lock switch and a door is
open, the doors will lock
five seconds after the last door is
closed. You will hear three chimes
to signal that the delayed lo ...
