Toyota bZ4X (USA / CAN)

Differential fluid capacity & service interval

Toyota bZ4X (USA / CAN) differential fluid capacity is 3,1 liters. Service intervals include checking at 30000 miles or 36 months and changing at 60000 miles or 72 months. The data covers 4 configurations.

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

TypeSpecifications
  • bZ4X (150 kW) AWD (2022- )
  • Rear, electric drive
  • Use: Normal
  • Capacity 3,1 liter
  • Check 30000 miles/ 36 months
  • Code: QA10 1/1
  • bZ4X (150 kW) AWD (2022- )
  • Rear, electric drive
  • Use: Severe
  • Capacity 3,1 liter
  • Check 30000 miles/ 36 months
  • Change 60000 miles/ 72 months
  • Code: QA10 1/1
  • bZ4X (160 kW) AWD (2022- )
  • Rear, electric drive
  • Use: Normal
  • Capacity 3,1 liter
  • Check 30000 miles/ 36 months
  • Code: QA10 1/1
  • bZ4X (160 kW) AWD (2022- )
  • Rear, electric drive
  • Use: Severe
  • Capacity 3,1 liter
  • Check 30000 miles/ 36 months
  • Change 60000 miles/ 72 months
  • Code: QA10 1/1

Additional Notes

  • The Toyota bZ4X (USA / CAN) rear electric drive differential holds 3.1 liters of fluid across both the 150 kW and 160 kW AWD configurations, indicating a consistent fill volume regardless of motor output rating.
  • Under normal use conditions, neither the 150 kW nor the 160 kW AWD variant carries a scheduled fluid change interval for the rear differential — only a check at 30,000 miles or 36 months is specified.
  • Under severe use conditions, both AWD configurations share an identical check interval of 30,000 miles or 36 months, paired with a fluid change interval of 60,000 miles or 72 months for the rear electric drive differential.
  • The 60,000-mile or 72-month change interval appearing exclusively under severe use reflects how operating conditions influence service frequency for the rear differential fluid, even when the fill capacity remains unchanged at 3.1 liters.
  • The 3.1-liter capacity figure represents a service fill volume for the rear electric drive differential, applicable during both inspection and fluid change procedures across all listed configurations.

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