RCU_a056_redundantControllerIsMaster
Power braking assist reduced
What does the RCU_a056_redundantControllerIsMaster alert mean?
The Redundant Control Unit (RCU) is the master hydraulic brake controller.
What you'll see in your Tesla
- Power braking assist reduced
- Braking may require increased effort
What triggers it
The IDB_boosterStatus signal has indicated that the Integrated Dynamic Brake (IDB) is unable to generate hydraulic brake pressure.
When it clears
The IDB_boosterStatus signal indicates that the Integrated Dynamic Brake (IDB) is now able to generate hydraulic brake pressure.
Potential impact
The Redundant Control Unit will provide brake boost when the driver applies the brake pedal. This will result higher than normal brake pedal forces being required to achieve a given vehicle deceleration in addition to vibrating noises when the pedal is pressed.
Affected models
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