When a car has broken down during the rental period, HubbaCar Drivers are advised to take the following action as described here.
As referenced, all point of call charges are settled by HubbaCar, then are later recharged to the Owner or Driver depending on the reason for breakdown. HubbaCar is aided in determining who is liable as our support team receives a report from the RAC with details of the break down and likely causes of said break down (whether existing mechanical fault or due to Driver damage).
In most cases, if the car has broken down due to a mechanical fault then the liability would be on the HubbaCar Owner.
However, if the car has broken down due to collision, is due to tyre damage (punctures etc) or the windscreen is damaged then the liability would be on the HubbaCar Driver.
We ask all HubbaCar Drivers to make sure they carefully check the status of the tyres and the windscreen for any chips before driving off.