UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended February 2928, ~~2020~~2021

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from_____to_____

Commission File Number of issuing entity: 333-207329-08

Central Index Key Number of issuing entity: 0001718592

CARMAX AUTO OWNER TRUST 2017-4

(Exact name of the Issuing Entity as specified in its charter)

Commission File Number of depositor: 333-207329

Central Index Key Number of depositor: 0001259380

CARMAX AUTO FUNDING LLC

(Exact name of the Depositor as specified in its charter)

Central Index Key Number of sponsor (if applicable): 0001601902

CARMAX BUSINESS SERVICES, LLC

(Exact name of the Sponsor as specified in its charter)

Delaware

(State or other jurisdiction of incorporation or organization for the Issuing Entity and the Depositor)

35-7173749

(I.R.S. Employer Identification No. for the Issuing Entity)

01-0794037

(I.R.S. Employer Identification No. for the Depositor)

12800 Tuckahoe Creek Parkway, Suite 400, Richmond, VA 23238

(Address of principal executive offices, Zip Code)

(804) 935-4512

(Registrant's telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act: None

Securities registered pursuant to Section 12(g) of the Act: 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 ☒

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 ☒

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 ☒ 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 during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes ☐ No ☐ (The registrant is not currently required to submit such files)

Indicate by check mark if 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 registrant's 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. ☒

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer", "smaller reporting company", and "emerging growth company" in Rule 12b-2 of the Exchange Act. (Check one):


Large accelerated filer ☐			Accelerated filer ☐
Non-accelerated filer ☒ (do not check if a smaller reporting company)			Smaller reporting company ☐
			Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant has filed a report on and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☐

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

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.

DOCUMENTS INCORPORATED BY REFERENCE

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 or 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.

PART I

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


Item 1.			Business.
Item 1A.			Risk Factors.
Item 2.			Properties.
Item 3.			Legal Proceedings.

Item 1B. Unresolved Staff Comments.

None.

Item 4. Mine Safety Disclosures.

Not applicable.

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).

No single obligor represents 10% or more of the pool assets held by CarMax Auto Owner Trust 2017-4 (the "Issuing Entity").

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

No entity or group of affiliated entities provides any external credit enhancement or other support with respect to either payment on the pool assets held by the Issuing Entity or payments on the asset-backed notes (the "Notes") issued by the Issuing Entity.

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

Based on the standards set forth in Item 1115(b) of Regulation AB, no information is required in response to this item.

Item 1117 of Regulation AB. Legal Proceedings.

There are no legal proceedings pending, or any proceedings known to be contemplated by governmental authorities, against CarMax Business Services, LLC (the “Sponsor” and, in its role as the servicer, the “Servicer”), CarMax Auto Funding LLC (the “Depositor”), the Issuing Entity or the other parties described in Item 1117 of Regulation AB, or of which any property of the foregoing is the subject, that are material to holders of the Notes.

U.S. Bank National Association (the “Indenture Trustee”), has provided the following information for inclusion in this report:

In the last several years, U.S. Bank National Association (“U.S. Bank”) and other large financial institutions have been sued in their capacity as trustee or successor trustee for certain residential mortgage backed securities ("RMBS") trusts. The complaints, primarily filed by investors or investor groups against U.S. Bank and similar institutions, allege the trustees caused losses to investors as a result of alleged failures by the sponsors, mortgage loan sellers and servicers to comply with the governing agreements for these RMBS trusts. Plaintiffs generally assert causes of action based upon the trustees’ purported failures to enforce repurchase obligations of mortgage loan sellers for alleged breaches of representations and warranties, notify securityholders of purported events of default allegedly caused by breaches of servicing standards by mortgage loan servicers and 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 it.~~

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, that it has meritorious defenses, and it has contested and intends to continue contesting the plaintiffs’ claims vigorously. However, U.S. Bank cannot assure you as to the outcome of any of the litigation, or the possible impact of these litigations on the trustee or the RMBS trusts.

~~contesting~~On March 9, 2018, a law firm purporting to represent fifteen Delaware statutory trusts (the ~~plaintiffs’~~“DSTs”) ~~claims~~that ~~vigorously~~issued securities backed by student loans (the “Student Loans”) filed a lawsuit in the Delaware Court of Chancery against U.S. ~~However,~~Bank National Association (“U.S. Bank”) ~~cannot~~in ~~assure~~its ~~you~~capacities as indenture trustee and successor special servicer, and three other institutions in their respective transaction capacities, with respect to the ~~outcome~~DSTs ofand ~~any~~the ofStudent ~~the~~Loans. ~~litigation~~This lawsuit is captioned The National Collegiate Student Loan Master Trust I, oret al. v. U.S. Bank National Association, et al., C.A. No. 2018-0167-JRS (Del. Ch.) (the ~~possible~~“NCMSLT ~~impact~~Action”). ofThe ~~these~~complaint, ~~litigations~~as amended on June 15, 2018, alleged that the ~~trustee~~DSTs have been harmed as a result of purported misconduct or omissions by the ~~RMBS~~defendants concerning administration of the trusts and special servicing of the Student Loans. Since the filing of the NCMSLT Action, certain Student Loan borrowers have made assertions against U.S. Bank concerning special servicing that appear to be based on certain allegations made on behalf of the DSTs in the NCMSLT Action.

On March 9, 2018, a law firm purporting to represent fifteen Delaware statutory trusts (the DSTs) that issued securities backed by student loans (the Student Loans) filed a lawsuit in the Delaware Court of Chancery against U.S. Bank ~~National~~believes ~~Association~~that ~~(U.S.~~it ~~Bank)~~has inperformed its ~~capacities~~obligations as indenture trustee and ~~successor~~ special servicer, ~~and~~in ~~three~~good ~~other~~faith ~~institutions~~and in ~~their~~compliance ~~respective~~in ~~transaction~~all ~~capacities,~~material respects with ~~respect to~~ the ~~DSTs~~terms ~~and~~of the ~~Student~~agreements ~~Loans.~~governing ~~This~~the ~~lawsuit~~DSTs ~~is captioned The National Collegiate Student Loan Master Trust I, et al. v. U.S. Bank National Association, et al., C.A. No. 2018-0167-JRS~~ (~~Del.~~the ~~Ch.).~~“Governing ~~The complaint~~Agreements”), ~~which~~and ~~was~~accordingly ~~later amended on June 15, 2018, alleged~~ that the ~~DSTs~~claims ~~have~~against ~~been~~it ~~harmed~~in ~~as a result of purported misconduct or omissions by~~ the ~~defendants~~NCMSLT ~~concerning~~Action ~~administration~~are ofwithout ~~the trusts and servicing of the student loans~~merit.

U.S. Bank ~~believes~~has ~~that~~filed ita ~~has~~motion ~~performed~~seeking dismissal of the operative complaint in its ~~obligations~~entirety aswith ~~indenture~~prejudice ~~trustee~~pursuant to Chancery Court Rules 12(b)(1) and ~~special~~12(b)(6) ~~servicer~~or, in ~~good~~the ~~faith~~alternative, a stay of the case while other prior filed disputes involving the DSTs and inthe ~~compliance~~Student inLoans ~~all~~are ~~material~~litigated. ~~respects~~On ~~with~~November 7, 2018, the ~~terms~~Court ruled that the case should be stayed in its entirety pending resolution of the ~~agreements~~first-filed ~~governing~~cases. On January 21, 2020, the Court entered an order consolidating for pretrial purposes the NCMSLT Action and three other lawsuits pending in the Delaware Court of Chancery concerning the DSTs and the Student Loans (the ~~Governing~~“Consolidated ~~Agreements~~Action”),. U.S. Bank and ~~accordingly~~other ~~that~~parties to the ~~claims~~Consolidated ~~against~~Action ithave briefed and argued motions for judgment on the pleadings pursuant to Chancery Court Rule 12(c) regarding disputed issues of contractual interpretation at issue in one or more of the ~~lawsuit~~cases ~~are~~comprising ~~without~~the ~~merit~~Consolidated Action, including the NCMSLT Action. The Court has not yet ruled on these motions or on U.S. Bank’s dismissal motion in the NCMSLT Action.

U.S. Bank ~~has~~intends ~~filed~~to acontinue ~~motion seeking dismissal of the operative complaint in its entirety with prejudice pursuant~~ to ~~Chancery~~defend ~~Court Rules 12(b)(1) and 12(b)(6) or, in~~ the ~~alternative,~~NCMSLT ~~U.S.~~Action ~~Bank requested a stay of the case while other prior filed disputes involving the DSTs and the Student Loans are being litigated~~vigorously. ~~On November 7, 2018, the Court ruled that the case should be stayed in its entirety pending resolution of the first-filed cases.~~

U.S. Bank intends to continue to defend this lawsuit vigorously.

PART II

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


Item 5.			Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities.
Item 6.			Selected Financial Data.
Item 7.			Management's Discussion and Analysis of Financial Condition and Results of Operations.
Item 7A.			Quantitative and Qualitative Disclosures About Market Risk.
Item 8.			Financial Statements and Supplementary Data.
Item 9.			Changes in and Disagreements With Accountants on Accounting and Financial Disclosure.
Item 9A.			Controls and Procedures

Item 9B. Other Information.

None.

PART III

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


Item 10.			Directors, Executive Officers and Corporate Governance.
Item 11.			Executive Compensation.
Item 12.			Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters.
Item 13.			Certain Relationships and Related Transactions, and Director Independence.
Item 14.			Principal Accountant Fees and Services.

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.

The Servicer and the Indenture Trustee (collectively, the “Servicing Parties”) have been identified by the registrant as parties participating in the servicing function with respect to the asset pool held by the Issuing Entity. Each of the Servicing Parties has completed a report on an assessment of compliance with the servicing criteria applicable to it (each, a "Servicing Report"), which Servicing Reports are attached as exhibits to this report on Form 10-K. In addition, each of the Servicing Parties has provided an attestation report under Item 1122 of Regulation AB (each, an "Attestation Report") by an independent registered public accounting firm, which reports are also attached as exhibits to this report on Form 10-K. Neither of the Servicing Reports provided by the Servicer or the Indenture Trustee nor the Attestation Reports provided by the Servicer or the Indenture Trustee has identified any material instance of noncompliance with the servicing criteria applicable to the respective Servicing Party.

Item 1123 of Regulation AB. Servicer Compliance Statement.

The Servicer has been identified by the registrant as a servicer with respect to the asset pool held by the Issuing Entity. The Servicer has completed a statement of compliance (a "Compliance Statement") signed by an authorized officer of the Servicer. The Compliance Statement is attached as an exhibit to this report on Form 10-K.

PART IV

Item 15. Exhibits and Financial Statement Schedules.


(a)(1)			Not applicable.
(a)(2)			Not applicable.
(a)(3)			The exhibits filed in response to Item 601 of Regulation S-K are listed in the Exhibit Index.
(b)			The exhibits filed in response to Item 601 of Regulation S-K are listed in the Exhibit Index.
(c)			Not applicable.

Item 16. Form 10-K Summary.

None.

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 to security holders, proxy statement, form of proxy or other proxy soliciting material has been sent to security holders or is anticipated to be furnished to security holders subsequent to the filing of this annual report on Form 10-K.

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: May 2026, ~~2020~~2021

CARMAX AUTO OWNER TRUST 2017-4


By:			CarMax Auto Funding LLC,
			as Depositor on behalf of CarMax Auto Owner Trust 2017-4

By:			/s/ Andrew J. McMonigle
Name:			Andrew J. McMonigle
Title:			Vice President and Treasurer
			(Senior officer in charge of securitization)

EXHIBIT INDEX


Exhibit Number			Description of Exhibit
3.1			Certificate of Formation of CarMax Auto Funding LLC.*
3.2			Amended and Restated Limited Liability Company Agreement of CarMax Auto Funding LLC dated as of December 1, 2004.**
4.1			Indenture dated as of October 1, 2017 between the Issuing Entity and U.S. Bank National Association, as indenture trustee (including forms of the Notes).***
4.2			Amended and Restated Trust Agreement dated as of October 1, 2017 between CarMax Auto Funding LLC, as depositor, and Wilmington Trust, National Association, as owner trustee.***
31.1			Rule 13a-14(d)/15d-14(d) Certification of CarMax Auto Funding LLC (Section 302 Certification).
33.1			Report on Assessment of Compliance with Applicable Servicing Criteria of CarMax Business Services, LLC.
33.2			Report on Assessment of Compliance with Applicable Servicing Criteria of U.S. Bank National Association.
34.1			Attestation Report on Assessment of Compliance with Servicing Criteria of KPMG LLP, on behalf of CarMax Business Services, LLC.
34.2			Attestation Report on Assessment of Compliance with Servicing Criteria of Ernst & Young LLP, on behalf of U.S. Bank National Association.
35.1			Annual Servicing Compliance Statement of CarMax Business Services, LLC.
99.1			Sale and Servicing Agreement dated as of October 1, 2017 among the Issuing Entity, CarMax Auto Funding LLC, as depositor, and CarMax Business Services, LLC, as servicer.***
99.2			Receivables Purchase Agreement dated as of October 1, 2017 between CarMax Business Services, LLC, as seller, and CarMax Auto Funding LLC, as purchaser.***
99.3			Administration Agreement dated as of October 1, 2017 among the Issuing Entity, CarMax Business Services, LLC, as administrator, and U.S. Bank National Association, as indenture trustee.***
99.4			Asset Representations Review Agreement dated as of October 1, 2017 among the Issuing Entity, CarMax Business Services, LLC, as servicer, and Clayton Fixed Income Services LLC, as asset representations reviewer.***
________________________________________________________________________
*			Incorporated by reference from the registration statement on Form S-3 of CarMax Auto Funding LLC originally filed on September 26, 2003 (File No. 333-107925).
**			Incorporated by reference from the registration statement on Form S-3 of CarMax Auto Funding LLC originally filed on August 4, 2005 (File No. 333-127189).
***			Incorporated by reference from the current report on Form 8-K of CarMax Auto Funding LLC and the Issuing Entity filed on October 25, 2017 (File No. 333-107925 and File No. 333-207329-08).

Filing Compare · CarMax Auto Owner Trust 2017-4