Does DoorDash include liability coverage?
Does DoorDash cover any liability, what does kind of insurance does the driver need to carry, and can they use a rental car?
DoorDash does cover some liability for its drivers. See more info about what insurance delivery drivers need here.
When it comes to using a rental car for deliveries, they will not provide any physical protection for the vehicle. I would make sure you have an appropriate plan that would cover the rental car — ask your agent or call your insurer's customer service line to make sure, or you'll risk being dropped from coverage.
If you have any questions, feel free to ask.