Galaxy1359

@Kabb how much did it cost you to fix the car?

OldSharkey

Tech notes: Found these codes: P218100 - Cooling system - temperature increase during warm-up implausible. P011600 - Coolant temperature sensor at engine outlet ? signal implausible. P1BB400 - Coolant temperature sensor at cylinder head- signal implausible. P218100 - Cooling system - temperature increase during warm-up implausible. Performed test drive while monitoring temperature sensors for cooling system and found that the temperature never went above 150 degrees F. Verified temperature sensors reading accurately. No electrical codes or symptoms present. Removed and replaced coolant regulator.

Key part - PAB - 121 - 115 - B Thermostat Housing + gasket, sealing rings and O-rings. No charge as it is an emissions issue.

Galaxy1359

@OldSharkey thanks .my car is 2019 and doesn’t have warranty so I guess I should pay

OldSharkey

@Galaxy1359 If an Automatic Start Stop issue, regardless of the cause of the fault, it should be covered under the 8 year emissions warranty. Ask your dealer.