Though millions are set to travel by car over the Thanksgiving holiday, a new report has found that nearly half of all drivers are behind on at least one major service, posing a risk during peak travel times, according to auto history firm CARFAX.

Data revealed that an estimated 41 percent of vehicles nationwide are overdue for some critical maintenance work.

The services include:

Brakes: Brake line and rotor inspections and replacements
Steering: Vehicle suspension and steering comp
Drivetrain: Transmission fluid draining and refilling
Engine: Coolant flush to keep the vehicle operating at a safe temperature
Fuel Efficiency/Air Quality: Replacement of engine air and cabin air filters

Additional data shows that almost 30 percent of cars are behind on tire rotations, while nearly 20 percent are behind on oil changes.

“Taking care of your vehicle pays off in both the short and long term,” said Paul Nadjarian, CARFAX’s chief product officer. “A well-maintained car lasts longer, holds its value, and costs less to own. Our free CARFAX Car Care app makes it easy for drivers to stay on top of maintenance with timely reminders about maintenance, recall alerts, and many other updates.”