Affected Component: ENGINE AND ENGINE COOLING

Date Published

SEP 30, 2021

NHTSA TSB #

10202187

TSB Document

• MC-10202187-0001.pdf

Summary

Certain 2020-2021 Sonata (DN8a) vehicles with 1.6T engines may exhibit a check engine light in conjunction with a popping noise, abnormal smell from the engine compartment, rough running, or reduced power due to a misfire.