Toyota has refused to acknowledge that the breakdown of the unit is a cronic problem that effects apparently all tacoma's that have the overhead temp/ compass display. according to the service people at the dealership ,the design allows the heat to build up after a few years and destroys 2 resisters ,preventing the unit from working. The dealer says they can only replace the entire unit ,rather than repair it, and charge "a lot of money for a 10 minute labor job". I don't think that's fair and Toyota should make good on a poor design,defective unit.