A warning first noticed after an update may reflect a new display, a changed operating condition or an underlying fault. The update date is useful, but it is not enough to diagnose a control unit.
How to approach the assessment
Keep the previous complaint history and the version information already shown by the vehicle. Do not request an unofficial downgrade to test a theory. The assessment should establish whether the symptom is reproducible and whether manufacturer guidance applies to that vehicle.
Useful details to send
- Update date and displayed version.
- Warnings before the update.
- Conditions in which power was limited.
Arrange the right assessment
This is enquiry guidance, not a high-voltage repair procedure. Do not open battery packs or work on high-voltage equipment. Agree the vehicle assessment and transport arrangements with the receiving workshop first.
Ask AXION about your repair or read our EV and hybrid assessment information. Workshop visits are by appointment in Didcot. Confirm suitability before posting any removed module.