CUSTOMER CONCERN The oil-pressure warning light comes on while the engine is running, and DTC P0521 is stored. CAUSE Pressure comparison and circuit checks confirmed a failed engine oil-pressure sending switch. CORRECTION Remove and replace the engine oil-pressure sending switch.

CUSTOMER CONCERN The Reduced Engine Power and Traction Off messages are displayed, and DTC P2135 is stored. CAUSE Throttle-position signal testing and the applicable service coverage confirmed a failed throttle-position sensor cover assembly. CORRECTION Remove and replace the throttle-position sensor cover, then program the Engine Control Module with the applicable calibration.