Cadillac Lyriq (USA / CAN)
Coolant capacity & service interval
Cadillac Lyriq (USA / CAN) uses Coolant with a capacity of 11,8 liters. The service interval is 150000 miles or 60 months. The data covers 4 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
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Additional Notes
- The Cadillac Lyriq (USA / CAN) coolant system serves the electric motor and associated thermal management circuit, not a combustion engine, which accounts for the relatively large 11.8-liter capacity across all four configurations.
- All four Lyriq variants — the 253 kW rear-wheel-drive, the 373 kW rear-wheel-drive, the AWD 253 kW, and the AWD 373 kW — share an identical coolant capacity of 11.8 liters.
- The uniform 11.8-liter figure applies to a service fill of the cooling system, meaning the volume required when draining and refilling the electric motor thermal circuit under normal maintenance conditions.
- The change interval for all four configurations is 150,000 miles or 60 months under normal use conditions, placing coolant service on a long-cycle schedule consistent with electric vehicle thermal management systems.
- The 60-month time limit runs concurrently with the 150,000-mile mileage threshold, so whichever limit is reached first would govern the service interval in practice.
- Neither output level — 253 kW nor 373 kW — nor the addition of all-wheel drive alters the coolant capacity or the service interval, indicating a standardized cooling circuit architecture across the Lyriq lineup as of the 2023 model year.