<Page>
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
-----------------------------------
FORM 8-K
CURRENT REPORT
PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934
Date of report (Date of earliest event reported) June 10, 2004
-------------
Hyundai ABS Funding Corporation
- --------------------------------------------------------------------------------
as Depositor to the Issuer described herein
(Exact Name of Registrant as Specified in Charter)
Delaware 333-108545 33-0978453
-------- ---------- ----------
(State or Other Jurisdiction of (Commission (I.R.S. Employer
Incorporation) File Number) Identification No.)
10550 Talbert Avenue, Fountain Valley, California 92708
------------------------------------------------- -----
(Address of Principal Executive Offices) (Zip Code)
Registrant's telephone number including area code (714) 594-1579
Former Name or Former Address, if Changed Since Last Report Not Applicable
<Page>
INFORMATION TO BE INCLUDED IN THE REPORT
Item 5. Other Events.
Hyundai ABS Funding Corporation (the "Registrant") is hereby filing
the servicer report (the "Servicer Report") which Hyundai Motor Finance Company
("HMFC") is required to file pursuant to Section 4.09 of the Sale and Servicing
Agreement, dated as of November 7, 2003, among the Issuer, the Registrant, HMFC
and Wells Fargo Bank Minnesota, National Association, as indenture trustee. The
Servicer Report filed hereby covers the period from May 1, 2004 to May 31, 2004.
Item 7. Financial Statements and Exhibits.
(c) Exhibits
Exhibit No. Exhibit
----------- -------
20 May 2004 Servicer Report
2
<Page>
SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.
Dated: June 14, 2004 HYUNDAI ABS FUNDING CORPORATION
By: /s/ David A. Hoeller
---------------------------------
Name: David A. Hoeller
Title: Vice President & Secretary
3
<Page>
EXHIBIT INDEX
Exhibit No. Exhibit
----------- -------
20 May 2004 Servicer Report