First, you need to become a member online or buy a pass at a kiosk to be able to use Capital Bikeshare – see the Pricing page for details. Then, find available bikes on the System Map.
If you're a member, you can insert your bike key into a dock to unlock a bike. If you purchase a short-term pass from a kiosk, you'll get a ride code, which you'll type into the keypad on the dock. Once you've successfully inserted your key or entered a ride code, the light on the dock will turn green. This means the bike is unlocked. To remove it from the dock, pull the bike out by the handlebar or lift the bike by the seat to release it.
To ride again while your pass is still active, just request a new ride code using the same payment card (don't worry, you won't be charged again).