Schedule Additional Required; Service and Maintenance- Page 354

Black plate (6,1)

Buick Regal Owner Manual - 2013 - crc - 11/5/12

11-6

Service and Maintenance

Footnotes

—

Maintenance

Schedule Additional Required
Services

—

Normal

(1)

Or every two years, whichever

comes first. More frequent
replacement may be needed if the
vehicle is driven in areas with heavy
traffic, areas with poor air quality,
or areas with high dust levels.
Replacement may also be needed if
there is a reduction in air flow,
excessive window fogging, or odors.

(2)

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.

(3)

Or every four years, whichever

comes first.

(4)

Or every five years, whichever

comes first. See

Cooling System on

page 10

‑

16

.

(5)

Or every 10 years, whichever

comes first.

(6)

Inspect for fraying, excessive

cracking, or damage; replace,
if needed.