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What should you do with a high-voltage battery warning?
The exact message and vehicle limitations matter. Some alerts allow restricted driving while others call for stopping; follow the instrument panel and owner manual.
What it may indicate
- A traction-battery or HV-system warning appears
- Power or maximum charge level becomes limited
- The vehicle requests service or restricts driving
What to check
- Record the exact warning shown by the vehicle
- Follow dashboard and owner-manual instructions
- Arrange diagnosis with high-voltage-qualified equipment and personnel
When to prioritize an inspection
Do not open the battery, inverter or high-voltage connectors. With smoke, abnormal heat, crash damage or flooding, keep away as appropriate and contact qualified assistance or emergency services.
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