Most car rental companies in Surabaya require a credit card for the reservation and payment process. The credit card is used as a security deposit and to cover any additional charges or damages that may occur during the rental period. If you don't have a credit card, it's best to check with different rental companies to see if they accept alternative payment methods such as debit cards or cash deposits.

To rent a car in Surabaya, you will typically need the following documents:
- A valid driver's license from your home country or an International Driving Permit (IDP)
- A valid passport or identification card
- A credit card in the name of the main driver for reservation and payment purposes
- Proof of insurance coverage if you have your own vehicle insurance policy
It's always recommended to check with the specific car rental company for any additional document requirements.

Yes, car insurance is typically required when renting a car in Surabaya. Most car rental companies offer their own insurance options, including Collision Damage Waiver (CDW) and Theft Protection, which help cover the costs in case of an accident or theft. It's important to carefully review the terms and conditions of the insurance coverage provided by the rental company and consider whether additional coverage is needed. Alternatively, you may be able to use your own personal car insurance policy or a credit card that offers rental car insurance coverage. Make sure to check with your insurance provider or credit card issuer to understand the extent of the coverage provided.

Yes, you can usually modify or cancel your car rental reservation in Surabaya, but it depends on the rental company's policies. Most companies allow free modifications or cancellations up to a certain number of hours or days before the scheduled pick-up time. However, there may be fees or penalties for last-minute changes or cancellations. It's important to review the terms and conditions of your reservation or contact the rental company directly to understand their specific policies and any associated fees.

In case of an accident or breakdown with the rental car in Surabaya, it's important to stay calm and take the following steps:
1. Ensure your safety and the safety of others involved. Move the car to a safe location if possible.
2. Contact the car rental company immediately and inform them about the situation.
3. Follow the instructions given by the rental company. They will guide you on what to do next, such as contacting the police or arranging for a tow truck.
4. If necessary, file a police report and obtain a copy for insurance purposes.
Remember to document the accident or breakdown by taking photos and gathering relevant information such as names, contact details, and insurance information of any parties involved.
It's also important to note that some rental companies provide roadside assistance services as part of their rental packages. Make sure to check if this service is included and how to access it.

You can usually pick up and return the rental car at the Surabaya International Airport or at various city locations. Many car rental companies have offices and pick-up/drop-off points conveniently located at the airport to cater to travelers. Some companies also offer the option of delivering the rental car to your hotel or another specified location for an additional fee. It's best to check with the rental company about their available pick-up and return locations and any associated charges.