Cadillac CTS clanking noise when shifting from drive to reverse despite service manager's reassurance on Cadillac CTS

Some Cadillac CTS owners report experiencing a clanking noise when shifting from drive to reverse, which may be attributed to issues with rear differential pinion bushings, drive shaft rubber isolation flanges, or axle backlash. Additionally, some owners have noted a clicking-type noise from the front of the vehicle during shifting, potentially indicating problems with the front wheel drive shaft and bearing hub assembly. Diagnostic observations suggest that if the noise smooths out while the vehicle is in motion, it could point to a transmission fluid issue. Experts advise that these clunking sounds may signal various underlying problems related to the engine, drivability, or suspension. A thorough inspection by a qualified mechanic is recommended to accurately identify and resolve these issues.