US Patent 7681322 Steering wheel level verification with alignment sensors attached

A vehicle wheel alignment system may include wheel alignment sensors configured to measure toe angles of steerable wheels on the vehicle, a user interface configured to communicate information to a user, and a processing system. The processing system may be configured to cause the user interface to communicate instructions to rotate a steering wheel on the vehicle and to communicate centering information that is pertinent to whether the steering wheel is substantially centered with respect to the steerable wheels based at least in part on the toe angles.