THC_d0013_coolantHeater
Service is required
What does the THC_d0013_coolantHeater alert mean?
The thermal controller (THC) has detected the battery heater is not operating nominally. Check 0093_tempBatHeater, 0094_tempBatHeaterRange, 0100_batHeatPerfReduced, 0101_batHeaterUnavailable, or 0114_coolantHeaterOpenShort for more information.
What you'll see in your Tesla
- Service is required
- Schedule service
What triggers it
THC detects 0093_tempBatHeater, 0094_tempBatHeaterRange, 0100_batHeatPerfReduced, 0101_batHeaterUnavailable, or 0114_coolantHeaterOpenShort for 120 seconds or 10 times within 30 minutes between each occurrence.
When it clears
The battery heater returns to nominal.
Potential impact
The battery heater will be unable to regulate temperature. Charging may not operate as expected.
Affected models
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Alerts like this reach MyTeslaMate through your car's Tesla telemetry API. MyTeslaMate logs every alert your Tesla reports and turns it into readable history and real-time notifications — hosted TeslaMate with no server to run.