UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K/A

Amendment No. 1

(Mark One)

For the fiscal year ended December 31, 2015.

or

For the transition period from                      to                     .

SANTANDER DRIVE AUTO RECEIVABLES TRUST 2014-3

(Exact name of issuing entity as specified in its charter)

Commission file number of the issuing entity: 333-192513-02

Central Index Key Number of issuing entity: 0001609220

SANTANDER DRIVE AUTO RECEIVABLES LLC

(Exact name of depositor as specified in its charter)

Commission file number of depositor: 333-192513

Central Index Key Number of depositor: 0001383094

SANTANDER CONSUMER USA INC.

(Exact name of sponsor as specified in its charter)

Central Index Key Number of sponsor: 0001540151

Delaware

(State or other jurisdiction of incorporation or organization of the issuing entity)

61-6517906

(I.R.S. Employer Identification No. of the issuing entity)

c/o Santander Drive Auto Receivables LLC

1601 Elm Street, Suite 800

Dallas, Texas 75201

(Address of principal executive offices)

(214) 292-1930

(Telephone number, including area code)

Securities Registered Pursuant to Section 12 (b) of the Securities Exchange Act of 1934: None

Securities Registered Pursuant to Section 12 (g) of the Securities Exchange Act of 1934: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    Yes  ¨    No  x

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.    Yes  ¨    No  x

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15 (d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  x    No  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  x    No  ¨

Indicate by check mark if the disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§229.405 of this chapter) is not contained herein and will not be contained, to the best of the Registrants’ knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.  x

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, or a non-accelerated filer. See definition of “accelerated filer and large accelerated filer” in Rule 12b-2 of the Exchange Act. (Check one):

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).    Yes  ¨    No  x

State the aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the price at which the common equity was last sold, or the average bid and asked price of such common equity, as of the last business day of the registrant’s most recently completed second fiscal quarter. Not applicable.

List hereunder the following documents if incorporated by reference and the part of the Form 10-K (e.g. Part I, Part II, etc.) into which the document is incorporated: (1) Any annual report to security holders; (2) Any proxy information statement; and (3) Any prospectus filed pursuant to Rule 424(b) or (c) under the Securities Act of 1933. The listed documents should be clearly described for identification purposes (e.g., annual report to security holders for fiscal year ended December 24, 1980). None.

EXPLANATORY NOTE

This Amendment No. 1 amends the Annual Report on Form 10-K for the fiscal year ended December 31, 2015 which was filed with the Securities and Exchange Commission on March 30, 2016 and is being filed for the purpose of (a) filing a new Exhibit 31.1 (Certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (Santander Drive)), (b) amending and revising Exhibit 33.1 (Report on Assessment of Compliance with Applicable Servicing Criteria (SC USA)) for Item 5 and two explanatory notes, and (c) amending and revising Exhibit 34.1 (Attestation Report of Independent Registered Public Accounting Firm on Assessment of Compliance with Applicable Servicing Criteria for Asset Backed Securities (Deloitte & Touche LLP)).

Other than as discussed above, this Form 10-K/A does not update or amend any other information or any exhibits as originally filed on the Form 10-K and does not otherwise reflect events occurring after the original filing date of the Form 10-K. Accordingly, this Form 10-K/A should be read in conjunction with the Form 10-K and with other filings made by the issuing entity with the Securities and Exchange Commission subsequent to the filing of the Form 10-K.

PART I

The following items have been omitted in accordance with General Instruction J to Form 10-K:

Item 1B. Unresolved Staff Comments.

Nothing to report.

Substitute information provided in accordance with General Instruction J to Form 10-K:

Item 1112(b) of Regulation AB. Significant Obligors of Pool Assets (Financial Information).

Nothing to report.

Item 1114(b)(2) of Regulation AB. Credit Enhancement and Other Support, Except for Certain Derivatives Instruments (Information Regarding Significant Enhancement Providers).

Nothing to report.

Item 1115(b) of Regulation AB. Certain Derivatives Instruments (Financial Information).

Nothing to report.

Item 1117 of Regulation AB. Legal Proceedings.

Since July 2014, Santander Consumer USA Inc. has received civil subpoenas and civil investigative demands from various federal and state agencies, including from the U.S. Department of Justice under the Financial Institutions Reform, Recovery and Enforcement Act, the United States Securities and Exchange Commission and several state attorneys general, requesting the production of documents and communications that, among other things, relate to the origination, underwriting and securitization of auto loans for varying time periods since 2007. Investigations, proceedings or information-gathering requests that Santander Consumer USA Inc. is, or may become, involved in may result in adverse consequences to Santander Consumer USA Inc. including, without limitation, adverse judgments, settlements, fines, penalties, injunctions, or other actions.

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U.S. Bank, National Association, as the indenture trustee, has provided the following information: Since 2014 various plaintiffs or groups of plaintiffs, primarily investors, have filed claims against U.S. Bank National Association (“U.S. Bank”), in its capacity as trustee or successor trustee (as the case may be) under certain residential mortgage backed securities (“RMBS”) trusts. The plaintiffs or plaintiff groups have filed substantially similar complaints against other RMBS trustees, including Deutsche Bank, Citibank, HSBC, Bank of New York Mellon and Wells Fargo. The complaints against U.S. Bank allege the trustee caused losses to investors as a result of alleged failures by the sponsors, mortgage loan sellers and servicers for these RMBS trusts and assert causes of action based upon the trustee’s purported failure to enforce repurchase obligations of mortgage loan sellers for alleged breaches of representations and warranties concerning loan quality. The complaints also assert that the trustee failed to notify securityholders of purported events of default allegedly caused by breaches of servicing standards by mortgage loan servicers and that the trustee purportedly failed to abide by a heightened standard of care following alleged events of default.

Currently U.S. Bank is a defendant in multiple actions alleging individual or class action claims against the trustee with respect to multiple trusts as described above with the most substantial case being: BlackRock Balanced Capital Portfolio et al v. U.S. Bank National Association, No. 605204/2015 (N.Y. Sup. Ct.) (class action alleging claims with respect to approximately 794 trusts) and its companion case BlackRock Core Bond Portfolio et al v. U.S Bank National Association, No. 14-cv-9401 (S.D.N.Y.). Some of the trusts implicated in the aforementioned Blackrock cases, as well as other trusts, are involved in actions brought by separate groups of plaintiffs related to no more than 100 trusts per case.

There can be no assurance as to the outcome of any of the litigation, or the possible impact of these litigations on the trustee or the RMBS trusts. However, U.S. Bank denies liability and believes that it has performed its obligations under the RMBS trusts in good faith, that its actions were not the cause of losses to investors and that it has meritorious defenses, and it intends to contest the plaintiffs’ claims vigorously.

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PART II

The following items have been omitted in accordance with General Instruction J to Form 10-K:

Item 9B. Other Information.

Santander Consumer USA Inc. is a wholly-owned subsidiary of Santander Consumer USA Holdings Inc., a Delaware corporation (“SC Holdings”). SC Holdings filed its Annual Report on Form 10-K for the fiscal year ended December 31, 2015 (the “2015 Form 10-K”) after the extended filing deadline. SC Holdings identified certain material weaknesses in internal control over financial reporting in Item 9A of the 2015 Form 10-K. Certain of these material weaknesses involve the failure of controls to operate effectively, resulting in misstatements in SC Holdings’ filed financial statements as of for the years ended December 31, 2014 and 2013, and interim periods in 2015 and 2014. The errors and resulting corrections to annual financial statements are described in Note 1 to the consolidated financial statements included in Item 8 of the 2015 Form 10-K, with corrections to interim periods shown in Item 9B of the 2015 Form 10-K. Additional information about SC Holdings, including information contained in required annual reports on Form 10-K, quarterly reports on Form 10-Q and current reports on Form 8-K, is on file with the Securities and Exchange Commission under the name “Santander Consumer USA Holdings Inc.” and file number 001-36270.

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PART III

The following items have been omitted in accordance with General Instruction J to Form 10-K:

Substitute information provided in accordance with General Instruction J to Form 10-K:

Item 1119 of Regulation AB. Affiliations and Certain Relationships and Related Transactions.

Information required by Item 1119 of Regulation AB has been omitted from this report on Form 10-K in reliance on the Instruction to Item 1119.

Item 1122 of Regulation AB. Compliance with Applicable Servicing Criteria.

Each of Santander Consumer USA Inc. and U.S. Bank National Association (each, a “Servicing Participant”) have been identified by the issuing entity as parties participating in the servicing function with respect to the pool assets held by the issuing entity. Each of the Servicing Participants has completed a report on an assessment of compliance with the servicing criteria applicable to it (each, a “Report on Assessment”), which Reports on Assessment are attached as exhibits to this Form 10-K. In addition, each of the Servicing Participants has provided an attestation report (each, an “Attestation Report”) by one or more registered public accounting firms, which reports are also attached as exhibits to this Form 10-K.

Item 1123 of Regulation AB. Servicer Compliance Statements.

Santander Consumer USA Inc. has been identified by the issuing entity as the servicer with respect to the asset pool held by the issuing entity. The Servicer has completed a statement of compliance with applicable servicing criteria (a “Compliance Statement”) signed by an authorized officer of the Servicer. The Compliance Statement is attached as an exhibit to this Form 10-K.

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PART IV

Item 15. Exhibits and Financial Statement Schedules.

The exhibits listed below are either included or incorporated by reference as indicated:

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Supplemental information to be Furnished With Reports Filed Pursuant to Section 15(d) of the Act by Registrants Which Have Not Registered Securities Pursuant to Section 12 of the Act.

No annual report, proxy statement, form of proxy or other proxy soliciting material has been sent to certificateholders, and the registrant does not presently contemplate sending any such materials subsequent to the filing of this report.

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SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: August 19, 2016

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EXHIBIT INDEX

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