Chassis and ride-control systems
PASM electronically controls damping, while air suspension also regulates ride height; the two are not interchangeable. A warning can reflect a damper, height sensor, air spring, compressor, wiring or module issue depending on equipment.
How a technician distinguishes possible causes
Confirm the installed options and scan the chassis controller. For air suspension, measure ride height and inspect for leaks, valve-block problems and compressor operation. For damping faults, check circuits and commanded damper states. Inspect control-arm bushings and tire condition when handling complaints are present.
Repair and post-repair verification
Verify height stability, correct calibration and absence of suspension warnings after a controlled road test.
Equipped Cayenne models integrate height control, damping and electronic chassis systems. A warning may originate from sensors, voltage, air leakage or controls.
If you are experiencing this issue, contact Mich’s Foreign Cars in Hickory, NC at 828-324-6012. Provide the model, year, engine, warning text and when the symptoms occur so the service team can discuss an appropriate diagnostic visit.