DTC codes / P25xx · Vehicle speed, idle control and auxiliary inputs / P2592
P2592 indicates that the cruise control system's front distance range sensor, typically a radar or lidar unit mounted behind the grille or front bumper, has reported a fault to the engine control module or cruise control module. The computer has detected an abnormal signal or communication loss from this sensor, which is used to maintain a safe following distance in adaptive cruise control systems.
Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.
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