Car pulls to the right slightly when hands are off the wheel.

Hello, It depends on the grade of the road. If the road is sloped to the right as most are for water drainage, the vehicle is just following the path of least resistance. However, if the road is sloped left or flat, there is an issue. Wheel alignment is often called "good" when it shows "OK" on all settings. This does not mean the vehicle will drive straight. All four wheels must be in agreement for the vehicle to drive straight. Normally, if you cannot feel the vehicle attempting to pull to the side, it is just a matter of the vehicle following the path of least resistance.