Jose Elias Morales Aguirre v. American Honda Motor Corporation, Inc.

District Court, N.D. California·Decided March 4, 2026·No. 4:22-cv-06909·Unknown

Opinion

JOSE ELIAS MORALES AGUIRRE, Case No. 22-cv-06909-HSG

Plaintiff, ORDER DENYING MOTION FOR CLASS CERTIFICATION v. Re: Dkt. No. 57 CORPORATION, INC., Defendant. Pending before the Court is Plaintiff’s motion for class certification. Dkt. No. 57 (“Mot.”); Dkt. No. 65 (“Opp.”); Dkt. No. 69 (“Reply”); Dkt. No. 78 (“Sur-Reply”).1 The Court held a hearing on the motion, Dkt. No. 81 (“Tr.”), and now DENIES it. Plaintiff Jose Elias Morales Aguirre owned a Honda Partial Zero Emissions Vehicle (“PZEV”), which began malfunctioning two years after purchase at a mileage of 127,530 miles. Dkt. No. 35 (“SAC”) ¶¶ 58–59. Technicians at a Honda repair facility determined that the head gasket was blown, and Plaintiff paid a total of $3,267 for the necessary diagnosis and repairs. See id. ¶¶ 60–63.2 After Plaintiff paid for the repairs, he retained counsel, who sent a letter to Defendant American Honda Motor Corporation, Inc. (“AHM”) requesting that it cover the repairs under the California Emissions Warranty because the head gasket is an emissions-related part. Id. ¶ 64. 1 The Court allowed Defendant to file a sur-reply to address evidentiary objections and Plaintiff’s revised class definition. Dkt. No. 77.

2 The head gasket “sits between the cylinder head and the block” in an internal combustion engine, California Health and Safety Code § 43200 authorizes the California Air Resources Board (“CARB”) to promulgate regulations for vehicle emissions, including the “California Emissions Warranty.” See id. ¶ 11. That warranty consists of two relevant parts: the Defects Warranty, 13 C.C.R. § 2037, and the Performance Warranty, 13 C.C.R. § 2038. See id. ¶¶ 22, 27. These warranties extend coverage to fifteen years or 150,000 miles for certain PZEVs. 13 C.C.R. § 1962.1(c)(2)(D); SAC ¶ 30. Plaintiff alleges that the head gasket qualifies as an emissions- related part that should be covered by these extended warranties. SAC ¶¶ 79–82. But Defendant allegedly refused Plaintiff’s request to reimburse him under these provisions, stating that “the head gasket is not a component that is covered by the Emissions Warranty.” See id. ¶ 64. Now, Plaintiff brings this putative class action against Defendant on behalf of a multistate and California class of PZEV owners and lessees. Id. ¶ 143. He argues that Defendant violated California Business and Professions Code § 17200, et seq. (the “UCL”), by failing to identify the head gasket as an emissions-related part. SAC ¶¶ 126, 150–71. He seeks injunctive and declaratory relief, as well as “reimbursement or restitution for out-of-pocket expenses, including diagnostic fees for amounts wrongfully paid by Plaintiff and members of the Classes relating to head gasket repairs that should have been covered.” Id. ¶¶ 144–45. Judge Breyer previously granted in part and denied in part Defendant’s motion to dismiss in July 2023. Most notably, Judge Breyer (1) dismissed Plaintiff’s claims for prospective injunctive relief, but granted leave to amend in light of counsel’s representation that Plaintiff could allege that another “head gasket malfunction is likely or certainly impending”; and (2) found Plaintiff had adequately pleaded that he lacked an adequate remedy at law such that the Court had equitable jurisdiction. Dkt. No. 33 (“MTD Order”) at 17, 20.3 Federal Rule of Civil Procedure 23(a) provides that a district court may certify a class only if: “(1) the class is so numerous that joinder of all members is impracticable; (2) there are questions of law or fact common to the class; (3) the claims or defenses of the representative parties are typical of the claims or defenses of the class; and (4) the representative parties will fairly and adequately protect the interests of the class.” Fed. R. Civ. Proc. 23(a). That is, the class must satisfy the requirements of numerosity, commonality, typicality, and adequacy of representation to maintain a class action. See Mazza v. Am. Honda Motor Co., Inc., 666 F.3d 581, 588 (9th Cir. 2012), overruled on other grounds by Olean Wholesale Grocery Coop., Inc. v. Bumble Bee Foods LLC, 31 F.4th 651 (9th Cir. 2022). If the four prerequisites of Rule 23(a) are met, a court also must find that the plaintiff “satisf[ies] through evidentiary proof” one of the three subsections of Rule 23(b). Comcast Corp. v. Behrend, 569 U.S. 27, 33 (2013). Rule 23(b)(3) applies where there is both “predominance” and “superiority,” meaning “questions of law or fact common to class members predominate over any questions affecting only individual members, and . . . a class action is superior to other available methods for fairly and efficiently adjudicating the controversy.” Fed. R. Civ. Proc. 23(b)(3). To determine whether a putative class action satisfies the requirements of Rule 23(b)(3), courts consider: (A) the class members’ interests in individually controlling the prosecution or defense of separate actions;

(B) the extent and nature of any litigation concerning the controversy already begun by or against class members; (C) the desirability or undesirability of concentrating the litigation of the claims in the particular forum; and

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Jose Elias Morales Aguirre v. American Honda Motor Corporation, Inc., (N.D. Cal. 2026).

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