Buick LaCrosse: Footnotes — Maintenance 
Schedule Additional Required 
Services — Severe - Footnotes — Maintenance 
Schedule Additional Required 
Services — Normal - Maintenance Schedule - Service and Maintenance - Buick LaCrosse Owners ManualBuick LaCrosse: 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) Do not directly power wash the transfer case output seals. High pressure water can overcome the seals and contaminate the transfer case fluid. Contaminated fluid will decrease the life of the transfer case and should be replaced.

e) Or every five years, whichever comes first. See Cooling System.

f) Or every 10 years, whichever comes first. Inspect for fraying, excessive cracking, or damage; replace, if needed.

    Footnotes — Maintenance Schedule Additional Required Services — Normal
    a) 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 du ...

    Special Application Services
    • Severe Commercial Use Vehicles Only: Lubricate chassis components every 5 000 km/3,000 mi. • Have underbody flushing service performed once a year. ...

    See also:

    Replacing Airbag System Parts after a Crash
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    Tire chains
    CAUTION: Tire chains/cables should not be installed on P245/40VR19 size tires. Installation of the tire chains/cables on P245/40VR19 size tires will cause damage to the vehicle. If you plan to use ...

    CD player operation
    NOTE ● Make sure to always insert a disc with the label side up. If a disc is inserted with the label side down, the player displays “CHECK DISC”. Refer to “When the following message ...