SCE-D Southern California Edison Company

Free Writing Prospectus, dated April 19, 2023

Filed pursuant to Rule 433 under the Securities Act of 1933

Supplementing the Preliminary Prospectus, dated April 7, 2023

Registration Statement Nos. 333-270543 and 333-270543-01

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Subject to the terms and conditions in the underwriting agreement among us, SCE and the underwriters, for whom RBC Capital Markets, LLC, Barclays Capital Inc. and Citigroup Global Markets Inc. are acting as representative, we have agreed to sell to the underwriters, and the underwriters have severally agreed to purchase, the principal amount of the bonds listed opposite each underwriter’s name below:

The underwriters may allow, and dealers may reallow, a discount not to exceed the percentage listed below for each tranche:

After the initial public offering, the public offering prices, selling concessions and reallowance discounts may change.

For the purposes of preparing the above chart, the following assumptions, among others, have been made: (i) in relation to the initial forecast, the forecast error stays constant over the life of the bonds and is equal to an overestimate of electricity consumption of 5% (2.92 standard deviations from mean) or 15% (6.61 standard deviations from mean), (ii) the servicer makes timely and accurate filings to true-up the fixed recovery charges annually, (iii) customer write-off rates are held constant at 0.36% for all FRC consumer classes, (iv) customers remit all fixed recovery charges 42.86 days after such charges are billed, (v) operating expenses are equal to projections, (vi) there is no acceleration of the final maturity date of the bonds, (vii) a permanent loss of all customers has not occurred, and (viii) the issuance date of the bonds is April 27, 2023. There can be no assurance that the weighted average lives of the bonds will be as shown.

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Southern California Edison Company and the Issuing Entity have filed a registration statement (including a prospectus) with the Securities and Exchange Commission (“SEC”) for the offering to which this communication relates. Before you invest, you should read the prospectus in that registration statement and other documents Southern California Edison Company and the Issuing Entity have filed with the SEC as exhibits to the registration statement for more complete information about the Issuing Entity and this offering. You may get these documents for free by visiting EDGAR on the SEC website at www.sec.gov. Alternatively, Southern California Edison Company, the Issuing Entity, any underwriter or any dealer participating in the offering will arrange to send you the prospectus if you request it by calling RBC Capital Markets, LLC toll-free at 1-866-375-6829 or by e-mail at syndicateops2@rbc.com, Barclays Capital Inc. toll-free at 1-888-603-5847 or Citigroup Global Markets Inc. toll-free at 1-800-831-9146.

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