A Cybertruck owner named Josh Crabtree reported measuring his B-pillar camera at over 157°F while the vehicle remained parked in a 72°F garage. No warnings appeared on the dashboard, and no FSD errors were logged. The heat was enough to make Crabtree pull his hand back, raising questions about the camera’s behavior.
The Cybertruck’s cameras are not passive sensors. The company’s service manual explicitly documents a heater connector for the front bumper camera, and internal design documents from 2022 mention a redesigned B-pillar camera housing for HW4 with an added heating device. This aligns with how defrosters work—miniaturized and embedded in camera housings.
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However, the 157°F reading in a climate-controlled space raises concerns. Standard IR thermometers measure emitted and reflected infrared radiation, but curved, polished surfaces like camera lens covers can distort readings. At such high temperatures, the margin of error could be ±20°F. The actual temperature might be lower or higher, but Crabtree and others confirmed the housings were hot enough to feel uncomfortable to the touch.
The company’s Autopilot ECU includes a fault code, APP_w388_windshieldCameraHeaterFaulted, that triggers a “Windshield camera defogging is limited” message. But this alert appears only in the company’s internal service system, not on the driver’s dashboard. No similar code exists for B-pillar or door cameras, leaving owners without visible warnings when heaters malfunction.
Crabtree and others in online forums noted that B-pillar cameras can overheat without any system alerts. In contrast, cabin camera failures trigger FSD errors and prompt the company to recommend immediate service. This discrepancy highlights a diagnostic gap: external camera heaters can run hot without triggering visible alerts, even in normal conditions.
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Some forum replies correctly pointed out limitations in IR thermometers, but dismissing the report entirely is invalid. If a heater is stuck on, the issue persists regardless of measurement accuracy. A dual-scroll-wheel reset followed by a full power-off from the Safety menu is the first step to troubleshoot. If the camera cools after rebooting, the issue may be software-related. If not, hardware failure is likely.
The company’s camera heater design is engineered to keep optics clear in harsh weather, but monitoring gaps exist. Long-term thermal stress data on these components is still lacking, as the Cybertruck is a new model. Crabtree’s service request, even if closed as “within spec,” creates a documented trail that could strengthen warranty claims if future repairs are needed.
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Owners experiencing similar issues are advised to log ambient temperatures, Sentry Mode status, and any FSD warnings. Documenting these details can support warranty discussions. If heat returns after a clean reboot, filing a service request via the company’s app is critical.
Owners are encouraged to check their Cybertruck’s camera temperatures. Specific readings and conditions would help identify patterns. Share your findings below.