The official notice
Defect
On certain vehicles, engine oil can leak from the valve cover onto the alternator. If this happens, the charging system could stop working and cause a warning light to turn on. If you continue to drive the vehicle with this problem, the engine could shut off while driving, and you may not be able to restart it. Note: This recall replaces C0260 (Transport Canada recall 2016-309). Vehicles that were repaired under that recall also require this repair.
Safety Risk
A sudden loss of engine power could increase the risk of a crash.
Remedy
Hyundai will notify owners by mail. The corrective actions for this recall are under development. Note: If the battery charging indicator light is on, Hyundai recommends that you should arrange to have the vehicle inspected and repaired at a dealer immediately.