For a traditional rental, there is nothing specific you have to do on Getaround to start the rental. The owner is responsible for providing the agreement – you simply have to complete the agreement together, then sign it.
For a Getaround Connect rental, you'll get access to the specific vehicle location one hour before check-in. Once you’ve arrived, go to Your rentals, select the relevant rental and tap ‘View on Getaround Connect’. Then tap ‘Start rental’. You will be guided step by step.
In both cases, the rental starts automatically at the check-in time booked.