<SEC-DOCUMENT>0001209191-17-055604.txt : 20171004
<SEC-HEADER>0001209191-17-055604.hdr.sgml : 20171004
<ACCEPTANCE-DATETIME>20171004113542
ACCESSION NUMBER:		0001209191-17-055604
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20171003
FILED AS OF DATE:		20171004
DATE AS OF CHANGE:		20171004

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Gaul Ryan Wesley
		CENTRAL INDEX KEY:			0001661730

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-21810
		FILM NUMBER:		171120829

	MAIL ADDRESS:	
		STREET 1:		21680 HAGGERTY ROAD
		CITY:			NORTHVILLE
		STATE:			MI
		ZIP:			48167

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GENTHERM Inc
		CENTRAL INDEX KEY:			0000903129
		STANDARD INDUSTRIAL CLASSIFICATION:	MOTOR VEHICLE PARTS & ACCESSORIES [3714]
		IRS NUMBER:				954318554
		STATE OF INCORPORATION:			MI
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		21680 HAGGERTY ROAD
		CITY:			NORTHVILLE
		STATE:			MI
		ZIP:			48167-8994
		BUSINESS PHONE:		248-504-0500

	MAIL ADDRESS:	
		STREET 1:		21680 HAGGERTY ROAD
		CITY:			NORTHVILLE
		STATE:			MI
		ZIP:			48167-8994

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AMERIGON INC
		DATE OF NAME CHANGE:	19930503
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2017-10-03</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000903129</issuerCik>
        <issuerName>GENTHERM Inc</issuerName>
        <issuerTradingSymbol>THRM</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001661730</rptOwnerCik>
            <rptOwnerName>Gaul Ryan Wesley</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>21680 HAGGERTY ROAD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NORTHVILLE</rptOwnerCity>
            <rptOwnerState>MI</rptOwnerState>
            <rptOwnerZipCode>48167</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>VP Business Development</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2017-10-03</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>6391</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>32758</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The shares represent Restricted Common Stock issued under the 2013 Equity Incentive Plan that have been granted to the Reporting Person. The Restricted Stock Award Agreement provides that the shares granted are subject to forfeiture if the Participant's employment with the Company terminates prior to the 18 month anniversary of the Grant Date (the &quot;Vesting Date&quot;).  If the Participant remains employed by the Company through and including the Vesting Date, or if the Participant's employment with the Company is terminated prior to the Vesting Date without Cause or for Good Reason (each as defined in the Restricted Stock Award Agreements), then the shares granted shall immediately vest and no longer be subject to possible forfeiture; provided that, in the case of acceleration upon termination, the participant's right to receive such accelerated vesting is conditioned upon execution of a general release of claims, which becomes irrevocable, for the benefit of the Company.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Ryan Gaul</signatureName>
        <signatureDate>2017-10-04</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
