Affected Component: ENGINE AND ENGINE COOLING

Date Published
DEC 17, 2018
NHTSA TSB #
10152865
TSB Document
Summary
This bulletin provides information on certain 2017-2018 model year Elantra (AD/ADA) 2.0L vehicles to update the ECM (Engine Control Module), update the HVAC ECU, and to update the engine coolant temperature gauge of the Instrument Cluster for improving heater performance.