Article C5.17.1
ERS Shutdown Means
Technical Regulations
Article C5.17.1
ERS Shutdown Means
Chapter: C5
In Simple Terms
F1 cars must have three independent ways to shut down the ERS (Energy Recovery System): the driver's master switch, mechanical handles, and the CDS button. This ensures the driver can always safely disable the power system if needed during a race or emergency.
- Three mandatory shutdown methods ensure redundancy and safety
- Driver Master Switch gives the pilot direct control to disable ERS
- Mechanical handles provide a physical backup shutdown option
- CDS button offers an additional electronic shutdown method
Official FIA Text
It must be possible to shut down the ERS by all the following means: a. The driver Master Switch required by Article C8.7.1. b. The handles required by Article C8.7.2. c. The CDS button required by Article C9.3.
ers shutdownenergy recovery systemmaster switchcds buttonsafety systems
2026 Season Regulations