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EV Evidence

Maintenance · UK

Stop for an EV battery or drive temperature warning

Stop driving for a red battery or electric-drive temperature indication, or a temperature or stop message. Also stop as soon as conditions permit for unexpected heat-related power loss, or a warning that persists or returns. Arrange vehicle-specific professional assessment or recovery; do not continue testing whether the warning clears or attempt thermal-system diagnosis.

Ford Motor Company: Coolant - Battery Electric Vehicle - Managing the Coolant Temperature

Reviewed

Key facts and evidence

For UK drivers, reviewed 12 August 2026, E3 classifies a traction-battery or electric-drive coolant temperature warning as Red and ProfessionalOnly. Stop as soon as conditions permit when the indication is red, demands a stop, accompanies heat-related power loss, or persists or returns. The display meaning remains vehicle-specific, and this page gives no roadside diagnosis.

Ford Motor Company: Coolant - Battery Electric Vehicle - Managing the Coolant Temperature

When a traction-battery or electric-drive coolant temperature warning requires stopping and professional recovery or assessment.

When to stop

The E3 stop conditions cover a red indication, a temperature or stop message, heat-related power loss, and a warning that persists or returns.

What happens next

The classified response is vehicle-specific professional assessment or recovery, not continued driving or owner diagnosis.

What to do next

Do not continue driving to see whether the warning disappears or returns again.

Immediate action: Bring the vehicle to a stop as soon as conditions permit and arrange recovery or assessment.

  • A red battery or electric-drive temperature indication is displayed.
  • A temperature or stop message appears, or heat-related power loss occurs.
  • The warning persists or returns.

Do not infer from missing evidence

  • Do not continue driving to test whether the warning clears.
  • Keep thermal-system inspection and diagnosis outside owner scope.

Professional hand-off

  • Arrange a manufacturer-authorised or IMI TechSafe EV technician using vehicle-specific information.
  • Use professional recovery when the vehicle cannot be driven under its exact warning instructions.

Questions this record can answer

What does the sourced evidence say about when to stop?

The E3 stop conditions cover a red indication, a temperature or stop message, heat-related power loss, and a warning that persists or returns.

What does the sourced evidence say about what happens next?

The classified response is vehicle-specific professional assessment or recovery, not continued driving or owner diagnosis.

Sources