One problem related to differential unit has been reported for the 2015 Hyundai Santa Fe. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2015 Hyundai Santa Fe based on all problems reported for the 2015 Santa Fe.
On 5/28/21, while driving vehicle noticed a knocking/banging when in reverse then also began when driving. Took to local midas dealer and was told rear differential gear was broken and needed repaired. Upon further research, midas discovered that an upgraded coupler had been replaced on other Hyundai Santa Fe's as the old coupler wasn't protecting the gear. The coupler on my vehicle was therefore not protecting the gear in the rear differential causing it to break in half. I work in a manufacturing company (Honda of America) and could not miss work due to strict attendance policies. Local Hyundai dealership could not assist me in repair ASAP so had no choice but to have it repaired with midas so that it would be ready for me to drive to work on Monday. Filed case with Hyundai to ask for reimbursement since vehicle wasn't recalled for defective coupler. They advised me to take to a local Hyundai dealership to ensure work was performed properly and correct parts were used. This cost us an additional $99 on top of the $5066 for the repair. Hyundai then told us after having the local dealership look at the work performed that because we didn't have it repaired at authorized dealership they could not provide assistance. After not accepting this response, I escalated the issue and was told Hyundai consumer affairs would contact us. We have yet to hear from them on any type of financial help with this costly repair that was through no fault of our own. This is a truly awful customer experience with Hyundai and am pursuing for some or all financial reimbursement.