Affected Component: POWER TRAIN

Date Published
JUN 08, 2023
NHTSA TSB #
10238350
TSB Document
Summary
This bulletin provides information related to the cleaning of the cooling system and coolant change to address the following problem: • “Refill Inverter Coolant” warning light displayed on the cluster • No DTC’s present • Normal level of coolant in Inverter Reservoir Tank • Measured EWP Speed > 2,800 RPM The cause of the warning light is due to increased EWP Speed due to poor flow of coolant inside the cooling circuit. The coolant in the system will be discharged and any foreign substances in the circuit will be flushed out with new coolant added in the end. A new reservoir cap label will be added.