<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2014-02-28</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001580608</issuerCik>
        <issuerName>Santander Consumer USA Holdings Inc.</issuerName>
        <issuerTradingSymbol>SC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001425800</rptOwnerCik>
            <rptOwnerName>Aronson Jeffrey</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O CENTERBRIDGE PARTNERS, L.P.</rptOwnerStreet1>
            <rptOwnerStreet2>375 PARK AVENUE</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10152</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, par value $0.01 per share</value>
            </securityTitle>
            <transactionDate>
                <value>2014-02-28</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>5</transactionFormType>
                <transactionCode>G</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value>E</value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>463412</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F1"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock, par value $0.01 per share</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>4130825.75</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnotes</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Represents a charitable donation of shares of common stock, par value $0.01 per share (&quot;Common Stock&quot;) of Santander Consumer USA Holdings, Inc. (the &quot;Issuer&quot;) received by the Reporting Person in connection with a series of previously reported in-kind distributions on January 28, 2014, which receipt was exempt from reporting pursuant to Rule 16a-13 of the Securities Exchange Act of 1934, as amended. These shares were previously held by Centerbridge Associates II, L.P. as nominee for the Reporting Person pending such charitable donation.</footnote>
        <footnote id="F2">The Reporting Person is a managing member of Centerbridge GP Investors II, LLC, which is the general partner of Centerbridge Associates II, L.P. which is the general partner of CCP II AIV I, L.P., which is the managing member of Sponsor Auto Finance Super Holdings, LLC, which is a limited partner in Sponsor Auto Finance Holdings Series LP (&quot;Sponsor Holdings LP&quot;) and a member of Sponsor Auto Finance GP LLC (&quot;Sponsor GP&quot;), and may be deemed to indirectly beneficially own these shares of Common Stock by virtue of such relationships with Sponsor Holdings LP, which directly holds these shares of Common Stock of the Issuer. (Continued in Footnote 3)</footnote>
        <footnote id="F3">The Reporting Person disclaims beneficial ownership over these shares of Common Stock of the Issuer except to the extent of his pecuniary interest therein. The filing of this statement shall not be deemed to be an admission that, for purposes of Section 16 of the Securities Exchange Act of 1934 or otherwise, the Reporting Person is the beneficial owner of any securities reported herein.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Jeffrey H. Aronson</signatureName>
        <signatureDate>2015-02-12</signatureDate>
    </ownerSignature>
</ownershipDocument>
