Maintenance Schedule; Additional Required; Services - Severe- Page 337

Buick Regal Owner Manual (GMNA-Localizing-2nd Timed Print-U.S./Canada-

11486030) - 2018 - crc - 3/23/18

336

Service and Maintenance

Maintenance Schedule
Additional Required
Services - Severe

12

000

km/7,500

mi

24

000

km/15,000

mi

36

000

km/22,500

mi

48

000

km/30,000

mi

60

000

km/37,500

mi

72

000

km/45,000

mi

84

000

km/52,500

mi

96

000

km/60,000

mi

108

000

km/67,500

mi

120

000

km/75,000

mi

132

000

km/82,500

mi

144

000

km/90,000

mi

156

000

km/97,500

mi

168

000

km/105,000

mi

180

000

km/1

12,500

mi

192

000

km/120,000

mi

204

000

km/127,500

mi

216

000

km/135,000

mi

228

000

km/142,500

mi

240

000

km/150,000

mi

Rotate tires and perform Required Services.
Check engine oil level and oil life percentage.
Change engine oil and filter, if needed.

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Replace passenger compartment air filter. (1)

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Inspect evaporative control system. (2)

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Replace engine air cleaner filter. (3)

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Change automatic transmission fluid.

@

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2.0L Engine: Replace spark plugs. Inspect spark
plug wires.

@

@

3.6L Engine: Replace spark plugs. Inspect spark
plug wires.

@

Drain and fill engine cooling system. (4)

@

Visually inspect accessory drive belts. (5)

@

Replace brake fluid. (6)

Footnotes

—

Maintenance

Schedule Additional Required
Services - Severe

(1)

Or every two years, whichever

comes first. More frequent
passenger compartment air filter
replacement may be needed if

driving in areas with heavy traffic,
poor air quality, high dust levels,
or environmental allergens.
Passenger compartment air filter
replacement may also be needed if
there is reduced airflow, window

fogging, or odors. Your GM dealer
can help determine when to replace
the filter.

(2)

Visually check all fuel and vapor

lines and hoses for proper
attachment, connection, routing, and
condition.