Which vehicle condition should you check before driving?

Before driving, it's crucial to check both the tire pressure and brake function because these aspects directly influence vehicle safety and performance.

Tire pressure affects the vehicle's handling, fuel efficiency, and overall safety; properly inflated tires provide better traction and reduce the risk of blowouts. Furthermore, ensuring that the brakes are functioning correctly is vital for safe stopping and maneuvering, as brake failures can lead to severe accidents.

While other options mention specific fluids or conditions, they don't encompass critical safety checks necessary before every drive. Checking both the tires and brakes creates a more comprehensive approach to ensuring that the vehicle is ready for safe operation on the road.