Navigating the intricacies of modern vehicle safety systems reveals a fascinating level of technological sophistication, particularly within Toyota's Occupant Classification System (OCS). Found in vehicles like the Tacoma (2nd and 3rd Gen, 2005-2023), FJ Cruiser, and 4Runner, the passenger seat houses a precisely calibrated array of load-cell sensors – typically four per seat for earlier models and two in the latest – all working in unison.