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:

    Shiftlock override
    If the vehicle cannot be driven, for example because of a dead battery, the gear selector must be moved from the P position before the vehicle can be moved3. 1 - Lift away the rubber mat on the f ...

    Rear passenger’s cup holder
    A dual cup holder is built in the armrest. CAUTION When a cup containing a beverage is in the cup holder, do not fold down or recline any seat. Otherwise, the beverage could spill while driving ...

    Care of wheels
    ● Wash the wheels when washing the vehicle to maintain their appearance. ● Clean the inner side of the wheels when the wheel is changed or the underside of the vehicle is washed. ` ...