Cadillac CTS rear axle fluid leak issue after seal replacement on Cadillac CTS

Some Cadillac CTS owners report experiencing rear axle fluid leaks after seal replacement, which may lead to fluid loss and potential internal rear end damage. This issue is particularly noted in 2005-2007 models, some of which have been recalled for this specific concern. Proper installation of the replacement seal is crucial to prevent future leaks, and owners should also be cautious about over-filling the differential, as this can cause fluid to seep out of the rear axle vent. If a leak persists, it is advisable to verify the installation of the seal and check the fluid level, and to consult a professional mechanic or dealership for effective resolution to prevent further damage to the rear axle.