Alfa Romeo High-voltage/auxiliary battery temperature overheating
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Quick answer
This Alfa Romeo alert means the high-voltage battery or auxiliary battery temperature is excessively high.
This page separates verified manufacturer/regulator evidence from supporting material. Unsupported causes, repairs or safety conclusions are not guessed.
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1. What does High-voltage/auxiliary battery temperature overheating mean?
This Alfa Romeo alert means the high-voltage battery or auxiliary battery temperature is excessively high.
2. Technical explanation
Verified owner-manual evidence identifies this as: “High-voltage/auxiliary battery temperature overheating.” The supplied evidence does not establish which battery is affected in a specific event, the triggering conditions, or the required repair.
3. What system is affected?
High-voltage battery and/or auxiliary battery temperature monitoring.
4. How serious is this code?
Not yet established by verified evidence.
5. Symptoms you may notice
- A displayed Alfa Romeo alert for high-voltage or auxiliary battery temperature overheating.
6. Possible causes
- Not yet established by verified evidence.
7. Can I still drive the vehicle?
Not yet established by verified evidence.
8. Can I charge the vehicle?
Not yet established by verified evidence.
9. What you can safely do
- Do not attempt high-voltage battery diagnosis or repair.
- Refer to Alfa Romeo service guidance for the vehicle.
10. Step-by-step troubleshooting
- No owner-performed troubleshooting steps are established by the supplied verified evidence.
11. When to contact service
Service requirement is not yet established by verified evidence. Contact an authorized Alfa Romeo service provider for vehicle-specific assessment.
12. What the service center may check
- Not yet established by verified evidence.
13. Possible repair or resolution
- Not yet established by verified evidence.
14. Affected vehicles
- Alfa Romeo Junior Elettrica · 2024–2026 · GLOBAL
15. Related TSBs / service bulletins
- No technical service bulletins were supplied as verified evidence.
16. Recall information
- No recalls were supplied as verified evidence.
17. Official manufacturer information
Alfa Romeo, “Alfa Romeo Junior Elettrica diagnostic evidence,” Junior Elettrica Type 966 / Elettrica versions owner manual: https://www.alfaromeo.com.au/content/dam/alfa/au/pdf/manual/junior/alfa-romeo-junior-series0-owners-manual-australia-jul2025.pdf
- Alfa Romeo: Alfa Romeo Junior Elettrica diagnostic evidence · owner_manual
19. Frequently asked questions
What does the Alfa Romeo high-voltage/auxiliary battery temperature overheating alert mean?
It indicates that the temperature of the high-voltage battery or auxiliary battery is excessively high.
Which vehicles are supported by the supplied evidence?
Alfa Romeo Junior Elettrica, model years 2024 through 2026, Global applicability.
Can I drive or charge after this alert appears?
Not yet established by verified evidence.