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:

    Programming trouble-diagnosis
    If the HomeLink does not quickly learn the handheld transmitter information: - replace the hand-held transmitter batteries with new batteries. - position the hand-held transmitter with its battery a ...

    Overview: changing bulbs/bulb types
    You can change the following bulbs. The bulb type can be found in the legend Halogen headlamps 1. Low-beam headlamps: H7 55 2. High-beam headlamp: H7 55 W 3. Parking lamp/standing lamp: ...

    Heater and air conditioner (manual) (if so equipped)
    WARNING ● The air conditioner cooling function operates only when the engine is running. ● Do not leave children or adults who would normally require the assistance of others alone in ...