Lyriq Air Suspension Failure Leaves Owner Riding Uneven

Based on a similar suspension issue with my 2020 Cadillac CT5-E, I can share some relevant experience. I noticed comparable symptoms with the leveling system showing errors and uneven ride height. The issue turned out to be a faulty control rod on the leveling sensor. The repair cost was 110€, which included diagnostic time and parts replacement. My regular workshop identified this using their diagnostic equipment after checking the air suspension components. Key symptoms that matched your description: Uneven vehicle stance, Warning lights on dash, Control module reporting height control restrictions, Compromised ride quality However, suspension issues can stem from various causes. To provide more specific guidance, could you share: When did you first notice the problem? Does the height variation change after the vehicle sits for extended periods? Are there any unusual noises when driving over bumps? Have you recently hit any large potholes or obstacles? This information would help determine if your leveling sensor is experiencing similar issues or if other air suspension components need attention.

Thanks for sharing those details about your CT5-E experience. My Lyriq first displayed these symptoms about 2 weeks ago following the last service at 106390 KM. The automotive suspension behavior is quite erratic, the height discrepancy becomes more pronounced after parking overnight. The leveling system seems to struggle most during initial startup. The leveling sensor readings appear inconsistent based on the diagnostic readouts from my OBD scanner. There are distinct clunking sounds when driving over speed bumps, which wasnt present before. No recent impacts or accidents, but the load sensor on the rear axle shows intermittent communication errors with the control module. This definitely sounds different from your control rod issue. Im starting to suspect the entire leveling system might need recalibration or more extensive work.

Thanks for providing those additional details about your Lyriq. Based on the symptoms youre describing, especially the erratic behavior after cold starts and the communication errors, this does sound more complex than the control rod issue I encountered on my CT5-E. The clunking noise combined with intermittent load sensor communication points toward a potential failure in the height sensor system. In my experience with these adaptive suspension setups, when the control module cant get reliable readings from multiple sensors, it often defaults to a safe mode that explains your bumpy ride quality. A key difference from my situation is the involvement of multiple components. While my issue was isolated to a single control rod, your situation involves: Load sensor communication errors, Inconsistent height sensor readings, Leveling system malfunction particularly after cold starts The repair cost will likely exceed the 110€ I paid. You might be looking at a complete calibration of the automotive suspension system plus potential replacement of both the load sensor and height sensor assemblies. Consider requesting a full diagnostic of the leveling system, the error logs from your OBD scanner suggest this isnt a simple sensor replacement like in my case.

Thanks for the detailed breakdown of your CT5-E repair. I appreciate the insights, but my Lyriqs symptoms seem quite different from what you experienced. After gathering more information and analyzing the diagnostic codes, Im inclined to have the entire leveling system inspected. The overnight height variations and those clunking noises over bumps, combined with the load sensor communication errors, suggest something more complex than a single faulty control rod. The automotive suspension behavior has become increasingly unpredictable, and the control module keeps throwing intermittent errors. Im going to schedule a full diagnosis of the ride height system next week. While the 110€ repair cost for your control rod issue would be nice, Im preparing for potentially higher expenses given the multiple symptoms affecting my vehicles suspension components. Thanks again for sharing your experience, it helped me understand that my issue likely requires a more comprehensive approach to resolve these leveling system problems. Will update the forum once I get the official diagnosis.