PACCAR issued a recall on the 387T600, and T800 models

On certain vehicles, the steering shaft sensor of the Electronic Stability Program (ESP) may be misaligned, giving incorrect vehicle information to the Electronic Control Unit (ECU). This could affect vehicle throttle control and braking systems. Correction: Dealers will first disable the yaw-control function of the ESP system. Once parts are available, the dealer will replace the steering column to insure proper alignment of the steering shaft sensor, and reactivate the full ESP system.