If at any time you receive an appropriate shock from your ICD i.e. one that is correcting a potentially fatal arrhythmia, you must surrender your licence and stop driving for 6 months.
If you were incapacitated i.e. went unconscious whilst you received the shock the suspension is 2 years. This may be reduced to 6 months if your cardiologist takes steps to prevent any further events requiring a shock eg starting or adjusting medications.
If you receive an inappropriate shock i.e. the shock was unnecessary, then you will receive a 1 month suspension.
If you are driving whilst you receive a shock you should stop as soon as is safe to do so, and should not continue until the cause of the shock has been investigated.
For more information about shocks see our ICD shocks page.