Lyriq Massage Seat Failure, Quick Troubleshooting Guide

Had a similar issue with my Cadillac Celestiq. The seat motor and massage function stopped responding completely. After troubleshooting, it turned out the electrical issue was related to a faulty connection between the seat control module and the massage chair components. The main symptoms matched yours, unresponsive massage settings and error codes. A professional diagnosis revealed loose plug connections under the seat, which interrupted power to the massage mechanism. The repair involved reconnecting and securing the wiring harness, plus replacing a damaged switch failure point where moisture had created corrosion. This type of electrical issue with luxury massage seats often stems from wire harness movement and vibration over time. The repair is relatively straightforward but requires proper diagnostic equipment to pinpoint the exact failure point. Would recommend having a certified technician check the connections and control module, as attempting DIY repairs risks damaging other seat components. The problem was serious enough to need professional attention but did not affect basic seat functionality or safety systems. A proper repair should restore full massage seat operation and clear any error codes.

Thanks for sharing your experience with the automotive seats. Mine indeed sounds like a similar switch failure and wiring issue. The massage chair functions never worked properly again until I had it fixed professionally. Did you happen to remember the repair costs? Also curious if youve had any other electrical issues with the massage seat system since getting it fixed? Been worried about potential recurring problems.

Great news, since taking my Cadillac to the mechanic, the massage seat switch issue was completely resolved. The final bill came to 95€, which covered fixing a loose cable connection in the control module. Pretty reasonable considering the complexity of luxury car massage systems. The repair has held up perfectly with no recurring electrical problems. The automotive seats are working exactly as they should, with all massage functions responding normally. The technician explained that once these wiring issues are properly fixed, they rarely come back as long as the connections are properly secured. My experience shows that addressing cable and plug connection problems early helps prevent more expensive issues with the massage seat components later. The small investment in professional repair definitely beats dealing with ongoing switch failure problems.

Thanks everyone for the helpful advice. I finally took my Lyriq to a certified tech who diagnosed the exact same wiring issue. The car upholstery had to be partially removed to access the connection point, but the actual repair was quick once they located the problem. Total cost was 120€ for diagnostics and repair. The seat switch and all massage functions are working perfectly now. The technician showed me the corroded wire harness they replaced and explained how moisture had damaged the original connections over time. Really glad I got this sorted properly instead of attempting DIY fixes that could have damaged the luxury car components further. No issues at all with the massage chair system in the 3 weeks since the repair. Money well spent to restore full functionality.