FOB KEY

Suppose your remote car door opener does not have the range to reach your car across the parking lot. Hold the metal key part of your key fob against your chin, then push the unlock button.

如果你的汽车遥控钥匙不能越过停车场打开车门，把钥匙链上的金属钥匙按在下巴上再按下开锁键。

I found the answer on Car2Go's website: you can use the key fob to indicate that you're making an intermediate stop.

我在Car2Go的网站上找到了答案：你可以通过密钥卡来表示自己只是中途停车。

Its latest security initiative is a digital key fob, linked to customers' accounts, whose security code changes every 30 seconds.

其最新的安全方案为一种数码密钥卡，可同客户的帐户相连，其密码每30秒自动更换。