Buick Terraza (USA / CAN)

Automatic transmission fluid capacity & service interval

Buick Terraza (USA / CAN) automatic transmission fluid capacity ranges from 7 to 8,3 liters. Service intervals include checks every 12 months and changes at 80000 km or 160000 km. The data covers 8 configurations.

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

TypeSpecifications
Terraza 3.9 V6 (2005-2007)
  • Use: Normal
  • Capacity 7 liter (2WD)
  • Capacity 8,3 liter (4WD)
  • Check 12 months
  • Change 160000 km
  • Code: 4/1
Terraza 3.9 V6 (2005-2007)
  • Use: Severe
  • Capacity 7 liter (2WD)
  • Capacity 8,3 liter (4WD)
  • Check 12 months
  • Change 80000 km
  • Code: 4/1
Terraza 3.9 V6 AWD (2005-2007)
  • Use: Normal
  • Capacity 7 liter (2WD)
  • Capacity 8,3 liter (4WD)
  • Check 12 months
  • Change 160000 km
  • Code: 4/1
Terraza 3.9 V6 AWD (2005-2007)
  • Use: Severe
  • Capacity 7 liter (2WD)
  • Capacity 8,3 liter (4WD)
  • Check 12 months
  • Change 80000 km
  • Code: 4/1
Terraza 3.5 V6 (2004-2006)
  • Use: Normal
  • Capacity 7 liter (2WD)
  • Capacity 8,3 liter (4WD)
  • Check 12 months
  • Change 160000 km
  • Code: 4/1
Terraza 3.5 V6 (2004-2006)
  • Use: Severe
  • Capacity 7 liter (2WD)
  • Capacity 8,3 liter (4WD)
  • Check 12 months
  • Change 80000 km
  • Code: 4/1
Terraza 3.5 V6 AWD (2004-2006)
  • Use: Normal
  • Capacity 7 liter (2WD)
  • Capacity 8,3 liter (4WD)
  • Check 12 months
  • Change 160000 km
  • Code: 4/1
Terraza 3.5 V6 AWD (2004-2006)
  • Use: Severe
  • Capacity 7 liter (2WD)
  • Capacity 8,3 liter (4WD)
  • Check 12 months
  • Change 80000 km
  • Code: 4/1

Additional Notes

  • The Buick Terraza (USA / CAN) automatic transmission fluid capacity is listed at 7 liters for 2WD configurations and 8.3 liters for 4WD configurations, with the 1.3-liter difference reflecting the additional fluid volume required to service the transfer case and associated drivetrain components in the higher-capacity setup.
  • All configurations across the 3.5 V6 and 3.9 V6 engine variants share the same 7-liter and 8.3-liter capacity figures, meaning the engine displacement does not influence the transmission fluid volume specification.
  • Under normal use conditions, the automatic transmission fluid change interval is set at 160,000 km for all listed configurations, whether 2WD or AWD.
  • Under severe use conditions, the change interval is reduced to 80,000 km across all configurations, exactly half the normal-use interval, reflecting the accelerated fluid degradation associated with more demanding operating conditions such as frequent towing, stop-and-go driving, or extreme temperatures.
  • Regardless of use condition, a fluid level check is specified every 12 months for all configurations, keeping the inspection schedule consistent across both normal and severe service classifications.
  • The 3.5 V6 engine covers model years 2004-2006, while the 3.9 V6 engine was introduced in 2005 and extends through 2007, creating a two-year overlap period from 2005-2006 during which both engine options were available in the Terraza lineup.
  • The AWD variants of both the 3.5 V6 and 3.9 V6 carry identical capacity and interval specifications to their non-AWD counterparts within the same use condition category, with the 8.3-liter figure applying to the 4WD fill regardless of which engine is installed.

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