C0575 on Cadillac: How to Diagnose & Fix
Left Front Shock Absorber Actuator Circuit
1 Cadillac model · 1 documented issue
C0575 on Cadillac by model: symptoms, diagnosis and fix
GM PI0430C covers 2009-2014 Cadillac CTS-V vehicles with Magnetic Ride Control when the Service Suspension System message appears with DTC C0575, C0580, C0585 or C0590. A 90-degree electrical connector at the top of a shock actuator may be incompletely seated or partially disconnected; the bulletin does not establish universal shock failure.
Common Symptoms
- Service Suspension System message
How to Fix
Follow PI0430C connector inspection, seating and circuit checks before replacing a shock absorber. Continue normal service-information diagnosis if the connector path does not resolve the message or DTC.
Sources for this issue (1)
C0575 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does C0575 mean on a Cadillac?
C0575 stands for "Left Front Shock Absorber Actuator Circuit." A General Motors chassis code (Chevrolet, GMC, Cadillac and Buick applications with electronically controlled suspension - Autoride, MagneRide, or Real Time Damping). The suspension control module commands variable current to each shock absorber actuator using pulse-width modulation and continuously measures actual current; when the measured current deviates from the commanded value at the left front corner, this code sets. The system usually defaults to a fixed damping setting, so the car remains drivable but rides firmly or harshly. Sub-codes narrow it down: :01 short to battery, :02 short to ground, :04 open circuit. On Cadillac it is documented across 1 model: CTS-V.
What are the most common causes of C0575?
The most common causes of C0575 are: Failed left front electronic shock absorber / damper actuator solenoid, Open, shorted, or chafed wiring in the left front actuator harness (common where it flexes at the strut), Corroded or loose connector at the shock actuator, Poor ground or damaged pin at the suspension control module, Failed suspension/electronic ride control module output driver, Aftermarket non-electronic shocks installed without the module being disabled. The specific cause varies by vehicle.
How much does it cost to fix C0575 on a Cadillac?
Repair costs vary widely with the root cause and Cadillac model; each issue on this page carries its own estimate where one is published.
Looking for C0575 on a different make?
View C0575 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.