The compass located in the rearview mirror has Cal next to the dirtection indication. How do you recalibrate the compass?
I saw a message for another vehicle that mentions driving around in circles until it calibrates itself. Is the 2003 Tundra compass the same method. Also, what zone should I be set for. I live near Houston, Texas. Any help you can provide will be greatly appreciated.

Not sure of the zone. Local dealer can tell you. Driving in circles will calibrate the compass.