B0958 21, B0959 21, B0960 21, or B0961 21 Chevrolet Silverado 3500 HD

The object sensor determines no change in the position of an object while the vehicle is in motion.

Action Taken When the DTC Sets

1. Parking assist is disabled.
2. The object alarm module commands the red indicator ON.
3. The object alarm module sends a serial data message to the instrument panel cluster (IPC) to display SERVICE PARK ASSIST message in the driver information center (DIC) and a chime will sound.

Conditions for Clearing the DTC

1. The DTC will transition to history when the fault is no longer present.
2. A history DTC will clear after 100 malfunction-free ignition cycles.

Reference Information

Schematic Reference

Object Detection Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Object Detection Description and Operation (UVC) or Object Detection Description and Operation (UD7)

Electrical Information Reference

1. «Circuit Testing»(ref-317172-S12100958872009060900000)
2. «Testing for Intermittent Conditions and Poor Connections»(ref-317172-S08096213032009060900000)
3. «Wiring Repairs»(ref-317172-S40815672902009060900000)
4. «Connector Repairs»(ref-317172-S41839496312009060900000)

Scan Tool Reference

Control Module References for scan tool information