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Buick Regal Owner Manual - 2012
Service and Maintenance 11-9
Footnotes — Maintenance
Schedule Additional Required
Services — Severe
a) Or every two years, whichever
comes first.
b) 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.
c) Or every four years, whichever
comes first.
d) Or every five years, whichever
comes first. See Cooling System on
page 10�18.
e) Or every 10 years, whichever
comes first. Inspect for fraying,
excessive cracking, or damage;
replace, if needed.
Special Application
Services
.
Vehicles using DOT 4 brake fluid
only: Change brake/clutch
hydraulic fluid every two years.
.
Severe Commercial Use
Vehicles Only: Lubricate chassis
components every 5 000 km/
3,000 mi.
.
Have underbody flushing service
performed once a year.
Additional
Maintenance and Care
Your vehicle is an important
investment and caring for it properly
may help to avoid future costly
repairs. To maintain vehicle
performance, additional
maintenance services may be
required. It is recommended
that your dealer perform these
services — their trained dealer
technicians know your vehicle best.
Your dealer can also perform a
thorough assessment with a
multi�point inspection to recommend
when your vehicle may need
attention. The following list is
intended to explain the services and
conditions to look for that may
indicate services are required.