Steering wheel angle calibration

A system, comprising a computer including a processor and a memory, the memory storing instructions executable by the processor to:

• determine a first distance d1 between a vehicle at a first location and an object;
• determine a best fit line representing an object from a plurality of sensor data, and specify to move a distance Δd to a second location;
• determine a predicted second distance dp between the vehicle at the second location and the object based on the first distance d1, the distance Δd, and the best fit line;
• operate the vehicle from the first location to the second location based on a center steering wheel angle;
• determine a measured second distance d2 between the vehicle at the second location and the object;
• then one of (a) maintain the center steering wheel angle based on the predicted second distance dp matching the measured second distance d2, or (b) update the center steering wheel angle based on the predicted second distance dp being different than the measured second distance d2.