TRW Automotive (TRW) DEFA14A Additional proxy soliciting materials

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the Securities
Exchange Act of 1934 (Amendment No.     )

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o   Definitive Proxy Statement

þ   Definitive Additional Materials

o   Soliciting Material Pursuant to §240.14a-12

TRW Automotive Holdings Corp.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

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SEC 1913 (02-02) Persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.

Important Notice Regarding the Availability of Proxy Materials for the Stockholder Meeting to be held on 05/20/08.

This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. We encourage you to access and review all of the important information contained in the proxy materials before voting.

The following materials are available for view:

Proxy Statement and Annual Report

To view this material, have the 12-digit Control #(s) (located on the following page) available and visit:www.proxyvote.com

If you want to receive a paper or e-mail copy of the above listed documents you must request one. There is no charge to you for requesting a copy. To facilitate timely delivery please make the request as instructed below on or before 05/05/08.

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Requests, instructions and other inquiries will NOT be forwarded to your investment advisor.

ATTN: SHAREHOLDER RELATIONS
12001 TECH CENTER DRIVE
LIVONIA, MI 48150

	TRW AUTOMOTIVE HOLDINGS CORP.
		Vote In Person Please check the meeting materials for any special requirements for meeting attendance. At the Meeting you will need to request a ballot to vote these shares.
		Vote By Internet To vote now by Internet, go toWWW.PROXYVOTE.COM. Use the Internet to transmit your voting instructions and for electronic delivery of information up until 11:59 P.M. Eastern Time the day before the cut-off date or meeting date. Have your notice in hand when you access the web site and follow the instructions.

Meeting Location

The Annual Meeting for holders as of 03/24/08
is to be held on 05/20/08 at 4:00 P.M. EDT
at:      The New York Palace Hotel
          455 Madison Avenue
          New York, NY 10022
          If directions are needed, please call the hotel at
          (212) 888-7000

Voting items

Proposal 1.The election of two directors to serve as Class I directors for a three-year term beginning at the meeting and expiring at the 2011 annual stockholders’ meeting or until succeeded by another qualified director who has been properly elected. The Board has nominated for re-election 01) Paul H. O’Neill and 02) Francois J. Castaing, both current directors.

The Board of Directors recommends a vote “FOR” the director nominees.

Proposal 2.  The ratification of Ernst & Young LLP, an independent registered public accounting firm, to audit the consolidated financial statements of TRW Automotive Holdings Corp. for 2008.

The Board of Directors recommends a vote “FOR” Proposal 2.