Buick LaCrosse, P2XX (USA / CAN)

Brake fluid capacity & service interval

Buick LaCrosse, P2XX (USA / CAN) models utilize brake fluid with a capacity range defined by minimum and maximum levels. Service intervals for fluid changes occur at 36 months and 60 months. The data covers 4 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
LaCrosse 2.5 (2018-2020)
  • Use: Normal
  • Between min and max.
  • Change 60 months
LaCrosse 3.6L V6 VVT (2018-2020)
  • Use: Normal
  • Between min and max.
  • Change 36 months
LaCrosse 3.6L V6 VVT AWD (2018-2020)
  • Use: Normal
  • Between min and max.
  • Change 36 months
LaCrosse 3.6L V6 VVT (2017-2017)
  • Use: Normal
  • Between min and max.
  • Change 60 months

Additional Notes

  • The capacity specification for all configurations is expressed as "between min and max" rather than a fixed volume, which is standard for brake fluid reservoirs where the acceptable level falls within a marked range on the reservoir body rather than a precise fill quantity.
  • The Buick LaCrosse 2.5 (2018-2020) carries a 60-month change interval under normal use conditions for the hydraulic brake system.
  • The LaCrosse 3.6L V6 VVT in its 2017 model year also specifies a 60-month change interval under normal use conditions.
  • For the 3.6L V6 VVT in 2018-2020, the change interval shortens to 36 months under normal use conditions, representing a reduction compared to the 2017 specification for the same engine.
  • The 3.6L V6 VVT AWD variant (2018-2020) shares the 36-month change interval under normal use conditions, aligning with the front-wheel-drive 3.6L V6 VVT specification for the same years.
  • A 36-month brake fluid change interval is notably more frequent than the 60-month interval, reflecting a difference in service scheduling between the 2017 3.6L V6 VVT and the 2018-2020 versions of the same engine despite identical use conditions.

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