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.

Footnotes — Maintenance Schedule Additional Required Services — Severe

    See also:

    Using the Delete All Name Tags Command
    The delete all name tags command deletes all stored phone book name tags and route name tags for OnStar, if stored. To delete all name tags: 1. Press . ► For vehicles without a navigation sy ...

    Airbag System Check
    The airbag system does not need regularly scheduled maintenance or replacement. Make sure the airbag readiness light is working. See Airbag Readiness Light  for more information. Notice: If ...

    Listing Stored Numbers
    The list command will list all the stored numbers and name tags. Using the “List” Command 1. Press . The system responds “Ready,” followed by a tone. 2. Say “Directory.”. 3. Say ...