Will my co-member be able to access a FLEX vehicle blocked using my account?

No. The member who blocked the FLEX vehicle must use their own key fob or mobile app to unlock the car.

Please note, this restriction does not exist in the case of round-trip vehicles available by reservation. Co-members can access round-trip vehicles reserved by each other. (See « Will my co-member be able to access my reservations as well?« )