Here are the steps on how to switch vehicles with National Car Rental:
1. Contact National Car Rental customer service. You can do this by calling them at 1-800-CAR-RENT (1-800-227-7368) or by visiting their website.
2. Let them know that you would like to switch vehicles.
3. Provide them with your rental agreement number and the details of the vehicle you are currently renting.
4. They will then be able to assist you in finding a new vehicle that meets your needs.
5. Once you have found a new vehicle, you will need to return the old vehicle to the National Car Rental location where you picked it up.
6. You will then need to sign a new rental agreement for the new vehicle.
