There is gear ration value in the Non-Volatile Memory (NVM). .
<0.01% (Extremely rare)
Power braking assist reduced
Braking may require increased effort
System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.
There is gear ration value in the Non-Volatile Memory (NVM). .
NVM gear ration value is missing when read at startup.
No internal issue is detected after changing operation cycle. If the condition persists, the DPB module may require replacement. The correct gear ration is written to the NVM and the system is reset.
Model Y 2025+
customer, service-fix
Sign up for Tessie. Try it free for 14 days. Happiness guaranteed.