The trip history can be deleted under the Standard Plus subscription plan.

To delete trip, please go to https://my.carlock.co/c/login -> click on ''Trip history'' tab -> click ''trash'' icon -> click ''remove'' 

If you need to change your plan to Standard Plus, please see the following blog post for more info: http://blog.carlock.co/carlock-tip-7-manage-and-extend-subscription/