Most car rental companies in Schwyz require a credit card for renting a car. This is because the credit card provides a form of security for the rental company.

To rent a car in Schwyz, you will typically need the following documents:

• A valid driver's license from your home country
• A passport or ID card
• A credit card in the driver's name for the security deposit

It is always recommended to check with the specific rental company for their exact document requirements.

Insurance coverage may vary depending on the car rental company in Schwyz. Some rental companies offer basic insurance coverage included in the rental price, while others may require you to purchase additional coverage. It is important to carefully review the rental terms and conditions and consider purchasing additional insurance for peace of mind.

Many car rental companies in Schwyz allow you to return the rental car to a different location within the country, while some may have restrictions or additional fees for one-way rentals. It is best to check with the rental company for their specific policies regarding returning the car to a different location.

If the rental car breaks down in Schwyz, you should immediately contact the car rental company's emergency hotline or customer service number. They will provide you with instructions on what steps to take next, which may include arranging for a replacement car or organizing roadside assistance.

Most car rental companies in Schwyz allow you to cancel or modify your reservation, although there may be fees or penalties associated with doing so. It is important to review the rental company's cancellation and modification policy before making your reservation. Some rental companies may offer more flexible options, such as free cancellation or modification up to a certain time before the rental pick-up time.