Cadillac Escalade intermittent vibration issue while in motion not resolved on Cadillac Escalade

Some Cadillac Escalade owners report experiencing intermittent vibration issues while in motion, particularly at high speeds, often linked to unbalanced wheels that cause the steering wheel to wobble. Others have noted that poor road force variation with factory 22-inch rims can contribute to these vibrations, and switching to 20 or 24-inch rims may help alleviate the problem. Additionally, a known transmission issue, referenced in GM service bulletin 18-NA-355, has been reported to cause vibrations, with a recommended fix involving a transmission flush and the use of Mobile 1 Synthetic LV ATF HP. Faulty motor mounts or transmission mounts have also been identified as potential contributors to the vibrations, particularly with the GM 8L90 and GM 8L45 transmissions, which may cause shaking or jerking during gear shifts. To effectively address these issues, owners are advised to consider a comprehensive inspection that includes checking wheel balance, rims, transmission, and mounts if vibrations persist.