Hyundai Santa Fe Sport AWD failure due to damaged splines on rear transfer case on Hyundai Santa Fe Sport

Some Hyundai Santa Fe Sport AWD owners report experiencing failures due to damaged splines on the rear transfer case, which can lead to stripped drive connections between the transmission and transfer case. If even one spline fails, it may cause the transfer case gear to jump on the transmission gear, potentially resulting in complete failure within just a few hours of driving. Repairing this issue typically involves opening the transmission and replacing the gear, with costs ranging from $1000 to $1500. These concerns underscore the necessity of promptly addressing spline damage to maintain the proper functioning of the AWD system in Hyundai Santa Fe Sport vehicles.