TSB Document:

Affected Component: ELECTRICAL SYSTEM:SOFTWARE

Summary
Some 2011-2013MY Elantra, 2013MY Elantra GT and 2013MY Elantra Coupe vehicles may exhibit an issue with Nitrogen Oxides (NOx) emission exceeding the standards under certain specific conditions. This bulletin provides information related to the Engine Control Module (ECM) software update for NOx emission improvement. The fuel adaption processing is modified to improve the described condition.

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Date Published
JAN 19, 2017
NHTSA TSB #
10117917
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