The official notice
Defect
Hyundai Auto Canada is conducting a Product Improvement Campaign that provides an update to the engine control module to detect potential problems before an engine fails. An engine failure would cause a sudden loss of power with an inability to restart. Note: This only affects vehicles equipped with a 2.4 L MPI engine. For the Sonata model, only the Sonata Hybrid is affected by this campaign.
Safety Risk
A sudden loss of engine power could increase the risk of an accident. An engine failure could also create the risk of a fire.
Remedy
The company will notify owners by mail. Owners will be instructed to take their vehicle to a dealer to update the software for the engine control module. Note: Hyundai recommends that you should always follow the correct vehicle maintenance schedule, which is printed in the Owner's Manual. If you experience unusual engine noise, reduced power, or a check engine/oil warning light, Hyundai advises you to immediately visit a Hyundai dealership to have your vehicle diagnosed.