Heavy Steering & Vibration Plagues Lyriq EV Driver

Experienced similar symptoms with my 2020 Cadillac CT6 PHEV. The heavy steering and vibration pointed to a steering angle sensor failure, which affected the electronic stability system. The main symptoms matched yours: heavy steering feel and consistent wheel vibration, particularly noticeable at higher speeds. The sensor replacement turned out to be part of a larger steering column issue in my case. The alignment problems were causing additional stress on the system. The repair process involved: 1. Full diagnostic scan of the steering system 2. Steering angle sensor replacement 3. Complete recalibration of the electronic stability system 4. Four-wheel alignment to prevent future sensor issues This was a serious repair requiring specialized equipment for proper sensor calibration. The vehicle needed to stay at the shop for 2 days since the steering column had to be partially disassembled. After the fix, both the heavy steering and vibration issues were completely resolved. Continuing to drive with these symptoms risks damaging other steering components. Would recommend getting it checked by a certified shop with experience in electric vehicle steering systems.

Thanks for sharing your experience. I ran into nearly identical symptoms on my Lyriq last winter, the heavy steering and strange vibrations had me worried. The traction control and stability warnings kept flashing too. Turned out the steering sensor was failing, affecting multiple systems. Did your repair hold up well over time? Would be good to know if you remember the total cost for the sensor replacement and calibration work. When they fixed mine, they mentioned something about the electronic stability system needing extra attention during the repair.

Good news, my CT6s steering sensor repair has held up perfectly since getting it fixed. The shop did a thorough job with the coding of the steering angle sensor that was faulty, and I paid 195€ for the complete calibration work. The traction control and electronic stability systems are working flawlessly now. The automotive sensors in modern vehicles are quite interconnected, so having a proper diagnosis and repair is crucial. The shop made sure to recalibrate all related systems after fixing the steering sensor. No alignment problems or stability issues have occurred since the repair was completed. The investment was worth it to avoid potential damage to other steering components. These automotive sensor issues can cascade into bigger problems if left unchecked. If anyone else faces similar symptoms, getting prompt professional diagnosis can save money in the long run.

I took my Lyriq to a certified dealer last month after reading these responses. The repair process was smoother than expected. The steering column was partially disassembled to access and replace the faulty angle sensor. Total cost came to 780€ including parts and labor. The traction control system needed a complete recalibration after the sensor replacement. They kept the car for about 6 hours to ensure all electronic systems were properly synchronized. No alignment problems or steering issues since the fix. Worth mentioning they found slight wear on the steering rack, but it wasnt serious enough to need replacement. The heavy steering and vibration completely disappeared after the repair. Really glad I addressed it promptly instead of waiting for more problems to develop.