If you don't have a credit card to rent a car you can sometimes use a debit card instead of a credit card to rent the car but it can depend on the car rental company.
Some car rental companies will accept debit cards if you have good credit and some will only let you rent a car with a credit card.
However they do run a credit check when you rent a car if you're using a debit card instead of a credit card.
Although if you use a credit card to rent the car instead of a debit card the rental car company doesn't usually do a credit check as the credit card guarantees the rental payment.
And a debit card presents more risks to the car rental agency the payment could be denied eventually.
The credit check that the rental car company may do is mainly to assess your ability to cover costs and avoid any red flags such as delinquent accounts and not judge your general creditworthiness.
Many rental car companies require a certain credit score range that is often between 550 and 600 and some rental car companies may deny a car rental to you if you have poor credit, especially if you rent the car with a debit card.
And some rental car companies may also restrict the type of vehicles you may rent using a debit card.
If possible use a credit card, which almost always avoids a credit check.
And if you must pay for the rental car with a debit card, be prepared for a credit check to occur.
And check your credit before renting a car with a debit card to determine if you might be denied.
And if you do rent a car you should pay any fees promptly and pay any tolls on time as well to avoid a negative impact on your credit report.