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:
Filling the Tank
WARNING!
Fuel vapor burns violently and a
fuel fire can cause bad injuries.
To help avoid injuries to you and
others, read and follow all the
instructions on the fuel pump
island. Turn off t ...
Sending a Number During a Call
1. Press . The system responds
with “Ready”
followed by a tone.
2. Say “Dial”. The system responds with “Say a
number to send tones” followed by a tone.
3. Say the number to send.
...
OnStar®
If the vehicle has OnStar and you subscribe to the
OnStar services, please refer to the OnStar Terms and
Conditions for information on data collection and use. ...
