MyTeslaMate
GTW family

GTW_w098_HCMRversionMismatch

Not Available

What does the GTW_w098_HCMRversionMismatch alert mean?

The vehicle gateway (GTW) detects the right Headlamp Control Module (HCMR) electronic control unit (ECU) is running a firmware version that may not be compatible with the firmware installed on the rest of the vehicle.

What you'll see in your Tesla

  • Not Available

What triggers it

The GTW detects the HCMR running a different firmware version than expected.

When it clears

The GTW no longer detects the HCMR running a different firmware version than expected.

Potential impact

Features depending on HCMR functionality, including headlights and turn signals, may be limited or unavailable.

Affected models

Model 3 2017-2023 Model 3 2024+ Model S 2021+ Model X 2021+ Model Y Model Y 2025+

Track your Tesla's alerts automatically

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.