The ride-sharing service Uber and the parenting website Care.com have teamed up to put child car seats in select Uber vehicles in two cities.

Called uberFAMILY, the service will place car seats in certain Uber cars in Washington, D.C., and Philadelphia, Penn., USA TODAY reported. To use the family option, riders will pay $10 extra. Uber warns that the uberFAMILY service may be in high demand.

The program will use IMMI Go car seats, which are intended for children who are older than 12 months and weigh between 22-48 pounds. Uber first introduced the family service in New York City in May, according to PCMag.com.

"Families in major metropolitan areas like D.C. and Philadelphia know how difficult it can be to navigate transportation needs with small children," Donna Levin, co-founder and vice president of operations at Care.com, said in a statement.

To promote the new service, Uber and Care.com are offering incentives for Uber riders that include care packages for the first 500 families to use the program in each city; a waiver for the $10 surcharge that applies through July 20; and 20 percent off a membership on Care.com.

Uber additionally tapped a car seat expert from the blog "The Car Seat Lady" to make sure that children are safe.

"When you request uberFAMILY, expect not only a car seat, but a driver who has been certified by The Car Seat Lady," Uber said in a statement.

Along with fellow ride-sharing service Lyft, Uber could probably use some positive publicity. An Uber driver allegedly took three customers on a high-speed chase against their will in Washington, D.C., last week.

Both Lyft and Uber recently received cease-and-desist letters from the Virginia Department of Motor Vehicles, which said the two companies are operating illegally. Known for its cars with large, pink mustaches, Lyft had planned a launch of 500 drivers in New York City last week that was derailed by two restraining orders.

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