Lexus CT, ZWA10 (USA / CAN)

Coolant capacity & service interval

Lexus CT, ZWA10 (USA / CAN) coolant capacity ranges from 2,1 to 6,9 liters. Service intervals include checks at 8000 km or 15000 miles/ 18 months and changes at 80000 km, 160000 km, 50000 miles/ 60 months, 100000 miles/ 120 months, or 150000 miles/ 180 months. The data covers 8 configurations.

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

TypeSpecifications
  • CT 200h (CAN) (2011-2017)
  • Combustion engine
  • Use: Normal
  • Capacity 6,5-6,9 liter
  • Check 8000 km
  • Change 80000 km
  • CT 200h (CAN) (2011-2017)
  • Combustion engine
  • Use: Initial service
  • Capacity 6,5-6,9 liter
  • Check 8000 km
  • Change 160000 km
  • CT 200h (CAN) (2011-2017)
  • Electric drive
  • Use: Normal
  • Capacity 2,1 liter
  • Check 8000 km
  • Change 80000 km
  • CT 200h (CAN) (2011-2017)
  • Electric drive
  • Use: Initial service
  • Capacity 2,1 liter
  • Check 8000 km
  • Change 160000 km
  • CT 200h (USA) (2011-2017)
  • Combustion engine
  • Use: Normal
  • Capacity 6,5-6,9 liter
  • Check 15000 miles/ 18 months
  • Change 50000 miles/ 60 months
  • CT 200h (USA) (2011-2017)
  • Combustion engine
  • Use: Initial service
  • Capacity 6,5-6,9 liter
  • Check 15000 miles/ 18 months
  • Change 100000 miles/ 120 months
  • CT 200h (USA) (2011-2017)
  • Electric drive
  • Use: Normal
  • Capacity 2,1 liter
  • Check 15000 miles/ 18 months
  • Change 50000 miles/ 60 months
  • CT 200h (USA) (2011-2017)
  • Electric drive
  • Use: Initial service
  • Capacity 2,1 liter
  • Check 15000 miles/ 18 months
  • Change 150000 miles/ 180 months

Additional Notes

  • The Lexus CT 200h carries two separate cooling circuits: one for the combustion engine and one for the electric drive system, each with its own capacity and service schedule.
  • The combustion engine cooling system holds 6.5–6.9 liters, a range that reflects minor variation in fill level depending on how completely the system is purged during a service fill.
  • The electric drive cooling system holds 2.1 liters, a notably smaller volume consistent with the more compact thermal management loop used for hybrid drive components.
  • For Canadian-market vehicles, the combustion engine coolant is checked every 8,000 km under normal use conditions, with a change interval of 80,000 km.
  • Under the initial service condition for Canadian-market vehicles, the combustion engine coolant change interval extends to 160,000 km, double the normal interval, reflecting the longer-life properties of the factory-fill fluid.
  • The electric drive cooling system in Canadian-market vehicles follows the same check and change intervals as the combustion engine circuit: 8,000 km for checks and 80,000 km for changes under normal use, or 160,000 km under the initial service condition.
  • For USA-market vehicles, the combustion engine coolant check interval is set at 15,000 miles or 18 months, whichever comes first, with a normal-use change interval of 50,000 miles or 60 months.
  • Under the initial service condition for USA-market vehicles, the combustion engine coolant change interval doubles to 100,000 miles or 120 months, consistent with the extended-life factory fill applied at the time of manufacture.
  • The electric drive cooling system on USA-market vehicles under the initial service condition carries a change interval of 150,000 miles or 180 months, which is longer than the 100,000-mile or 120-month initial service interval specified for the combustion engine circuit on the same vehicle.