The thermal controller (THC) detects reduced performance in the battery heater.
<0.01% (Extremely rare)
Battery heating unavailable - Charge rate reduced
Charging may be unavailable in cold temperatures
Battery heater may not operate as expected.
The thermal controller (THC) detects reduced performance in the battery heater.
Reduced battery heater performance detected.
Battery heater performance is restored.
Model S 2012-2020, Model X 2015-2020
customer, service-fix
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