CC-ID-354moderate severityChassis
Start Assist Inactive
on 2024 Mini Cooper SE Electric · FWD
What this code means
The hill start assist function is currently unavailable. The message is raised by the brake/stability control system managing start assist.
Symptoms
- Vehicle rolls back on inclines
- Start assist warning in cluster
- No brake hold on hills
Common causes
- Brake control module fault
- Wheel speed or incline sensor issue
- Low brake system pressure
- CAN communication fault
Diagnostic steps
- Scan brake/stability module for faults
- Check incline and wheel speed sensors
- Verify brake system pressure
- Inspect module communication
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Other Chassis codes on this vehicle
C0021
LF Wheel Speed Sensor Range/Performance
C0022
RF Wheel Speed Sensor Range/Performance
C0023
LR Wheel Speed Sensor Range/Performance
C0024
RR Wheel Speed Sensor Range/Performance
C0025
LF Wheel Speed Sensor Circuit Intermittent
C0026
RF Wheel Speed Sensor Circuit Intermittent
C0027
LR Wheel Speed Sensor Circuit Intermittent
C0028
RR Wheel Speed Sensor Circuit Intermittent
C0035
Left Front Wheel Speed Sensor Circuit
C0036
Left Front Wheel Speed Signal Erratic