Toyota Blind Spot Monitor Unavailable: Causes, Codes and Fixes by Model
Toyota’s owner’s manual says Blind Spot Monitor Unavailable means ice, snow or mud on the rear bumper around the radar sensors, cleared by a 10-minute drive above about 10 mph. Malfunction Visit Your Dealer is the sensor message: codes C1AC1, C1AC2, U0232 and U0233 explained, plus what Toyota’s Tacoma, Camry and RAV4 Prime bulletins fix.