Tesla BMS_a073 — Battery Thermal Runaway Risk

Battery Management (BMS) alert — plain English explanation and what to do next

System

Battery Management (BMS)

Severity

CRITICAL — Exit Vehicle

Dealer visit

Emergency — call 911

Affects models

All Models

What BMS_a073 means

BMS_a073 is one of Tesla's most serious alerts. Thermal runaway means battery temperatures could rise uncontrollably. This is extremely rare but a genuine safety risk requiring immediate action.

What to do

⚠️ CRITICAL SAFETY ALERT: Pull over immediately. Exit the vehicle. Move 100 feet away. Call 911 then Tesla Emergency at 1-877-798-3752.

Pull over immediately — Signal and move to a safe location away from other vehicles.

Exit vehicle immediately — All occupants must exit right away. Do not linger.

Move far away — Move at least 100 feet from the vehicle.

Call emergency services — Call 911 first then Tesla at 1-877-798-3752.

Related Tesla error codes

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