One problem related to catalytic convertor has been reported for the 2013 Hyundai Elantra. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2013 Hyundai Elantra based on all problems reported for the 2013 Elantra.
The contact owns a 2013 Hyundai Elantra. The contact stated the while driving at various unknown speeds, when slowing down the vehicle consistently stalls. The contact stated that that there was knocking noise coming from the engine compartment that is persistent. Additionally, the check engine safety light was illuminated. The vehicle was able to restart. The vehicle was taken to an independent mechanic where the vehicle was diagnosed as the catalytic converter sensor needing to be replaced. The contact was notified of NHTSA campaign number: 17v769000 (service breaks, hydraulic). The vehicle was repaired however the failure recurred. The manufacturer was not notified of the failure. The failure mileage 145,000.