Mustang Mach-E lemon law in California: battery contactor, junction box and loss-of-power recalls

The Mustang Mach-E is Ford's first purpose-built electric SUV, and some early owners have had a similar experience: a powertrain warning, a sudden loss of drive power, and a trip to the dealer for a software update, followed in some cases by another visit for a new high-voltage battery junction box. If your Mach-E keeps going back, the Mustang Mach-E lemon law question is a fair one. California's Song-Beverly Consumer Warranty Act can require Ford to repurchase or replace a vehicle with a warranty defect it cannot fix after a reasonable number of attempts.

This guide traces the Mach-E contactor recalls campaign by campaign, from the original software fix to the junction box replacement, lists the other documented recalls and investigations, and explains how those visits count. For Ford in general, see our Ford lemon law guide. This is general information as of October 2026, not legal advice, and it does not suggest every Mach-E is defective.

The high-voltage contactor and junction box recalls

The main contactors are high-power switches that connect the traction battery to the rest of the vehicle. NHTSA's records say they "may overheat," and "an overheated high voltage battery contactor can result in a loss of drive power, increasing the risk of a crash." The contactors sit inside the high-voltage battery junction box. Ford has addressed the problem in four recalls.

The step from 22V-412 to 23V-687 came after a federal review. In August 2023, NHTSA's Office of Defects Investigation opened recall query RQ23-004 to assess whether the 22V-412 software remedy was adequate. NHTSA's opening document says the agency had 12 consumer complaints of contactor failures in vehicles that had already received the recall remedy, that owners reported a later service bulletin (TSB 23-2020) replacing the junction box fixed the problem, and that contactors can overheat especially during DC fast charging and repeated wide-open-pedal events. It describes the risk as "an immediate loss of motive power without re-engagement." Ford then filed 23V-687 in October 2023, citing the query.

If your Mach-E was in for 22V-412, then for TSB 23-2020 or 23V-687, and possibly for 25V-130, that is the same defect addressed several times. Keep every invoice.

Other Mach-E recalls that involve drive power, brakes or safety

• Battery control module after a prior repair: 26V-582 (September 2026), certain 2023–2025 Mach-E that received a new battery energy control module during an earlier repair. The software may show an incorrect state of charge, which can cause an "unexpected loss of drive power," or raise the risk of a battery fire after repeated DC fast charging. NHTSA's record says the remedy is anticipated in December 2026.
• Rear differential: 26V-417 (June 2026), 2021–2023 Mach-E. The rear differential pinion shaft may fracture, causing loss of drive power or movement in Park if the parking brake is not applied. The remedy is anticipated in late December 2026.
• Park function: 25V-863 (December 2025), 2024–2026 Mach-E with the 2022–2026 F-150 Lightning and 2025–2026 Maverick. The integrated park module may fail to lock into Park; software update by dealer or over the air.
• Brakes after an over-the-air update: 24V-777 (October 2024), 2021 Mach-E. An over-the-air anti-lock brake update may cause loss of power brake assist, ABS, stability control and traction control. Vehicles repaired incorrectly are covered by 25V-513.
• Unintended acceleration or deceleration: 22V-333 (May 2022), 2021 all-wheel-drive Mach-E. Powertrain safety software may fail to detect an error, which can cause unintended acceleration, deceleration or loss of drive power.
• Doors that stay locked: 25V-404 (June 2025), 2021–2025 Mach-E. With a low 12-volt battery charge, the electronic door latches may stay locked, possibly trapping someone who cannot use the inside release, such as a child in the back seat.
• Early build issues: 2021 recalls for windshield bonding (21V-711), panoramic roof glass bonding (21V-712), front subframe bolts (21V-140), and rear seat belt buckles (21V-979, also 2022).

Other campaigns cover the wiper motor (24V-594), rear camera software (25V-315) and rear quarter window trim (26V-487). Our recall and complaint lookup tool pulls current NHTSA data for your model year, and you can check your VIN at nhtsa.gov/recalls.

The BlueCruise investigation

In January 2025 NHTSA upgraded its review of Ford's hands-free BlueCruise system to an engineering analysis, EA25-001, covering about 129,222 2021–2024 Mach-E vehicles. NHTSA's document says the preliminary evaluation began in April 2024 after two fatal crashes, and that the agency is examining collisions with stationary vehicles in travel lanes, including "system limitations relating to the detection of stationary vehicles while traveling at highway speeds." An open investigation is not a finding of a defect. But if your driver-assistance features malfunction repeatedly and the dealer cannot fix them, those visits are repair attempts like any other.

How the lemon law applies to a Mach-E

Civil Code § 1793.2(d) requires a manufacturer that cannot conform a new vehicle to its express warranty after a reasonable number of attempts to replace it or make restitution, at the buyer's choice. Within the first 18 months after delivery or 18,000 miles, Civil Code § 1793.22(b) presumes a reasonable number of attempts if:

1. a defect likely to cause death or serious bodily injury has been subject to repair two or more times, and you directly notified the manufacturer at least once; or
2. the same defect has been subject to repair four or more times, and you directly notified the manufacturer at least once; or
3. the vehicle has been out of service for repair for more than 30 calendar days in total.

Direct notice is required only if the warranty or owner's manual clearly discloses it. A sudden loss of drive power on the road is a strong candidate for the two-attempt safety category, although whether a defect qualifies is a question of fact. Days waiting at the dealer for a junction box or battery module count toward the 30 days. Many 2021–2022 Mach-Es are past 18 months, which ends the presumption but not the claim. Our guide on how many repair attempts the lemon law requires explains how claims succeed outside it, and our guide to EV battery and charging problems covers range loss and charging faults more broadly. Check your warranty booklet for the separate coverage on the high-voltage battery and electric drive components.

Over-the-air updates count too

Several Mach-E remedies can be delivered over the air. An over-the-air fix for a defect you have reported is still an attempt to repair it, but it may not generate a dealer repair order. Screenshot the update notice in the FordPass app or on the screen, with its date, and write down what it was supposed to fix.

What to ask the dealer to write on the repair order

• The exact warning and what happened: the message on the screen, word for word, then "lost drive power at 40 mph, would not restart, towed in."
• The conditions: right after DC fast charging, under hard acceleration, or with a low 12-volt battery.
• Codes and the part: diagnostic trouble codes, and whether the high-voltage battery junction box, battery energy control module or 12-volt battery was tested or replaced.
• The recall or bulletin number performed, and whether it was a repeat remedy.
• Dates in and out, the tow, and whether you got a loaner.

Ford's dispute program and next steps

Ford participates in BBB AUTO LINE, which the Department of Consumer Affairs lists as a state-certified program for Ford and Lincoln as of June 2025. If Ford gave you proper written notice of it, you generally must use it before relying on the 18-month presumption (Civil Code § 1793.22(c)). You can sue without it, and you are not bound by a decision you reject.

1. Get open recalls done, and go back each time the problem returns.
2. Open a case with Ford and record the case number. NHTSA's recall records list Ford customer service at 1-866-436-7332.
3. Do not sign a trade-in deal or goodwill release without a review.
4. Do not send Ford a demand letter on your own. Ford has been reported among manufacturers that opted in to California's 2025 procedures, which require a specific pre-suit notice to seek civil penalties.

What you can recover and the deadlines

A repurchase generally covers what you paid or owe, including taxes, registration and finance charges, plus incidental costs such as towing, minus a mileage offset for miles driven before the first repair visit for the defect (Civil Code § 1793.2(d)(2)). Our lemon law buyback calculator runs the numbers. If Ford willfully failed to comply, a court can add a civil penalty of up to two times actual damages, and a buyer who wins recovers attorney's fees and costs (Civil Code § 1794). For opted-in manufacturers, a lawsuit generally must be filed within one year after the warranty expires and no later than six years after delivery. Confirm current status on the Department of Consumer Affairs list.

How LaCour handles Mach-E claims

LaCour Trial Lawyers handles California lemon law claims statewide, in English and Spanish, with trial counsel leading each case. When a claim succeeds, the law requires the manufacturer to pay the buyer's attorney's fees and costs. Send us your recall letters, repair orders and app screenshots for a free, confidential review.

Frequently asked questions

This guide is general information about California and federal law and about public records as of its date. It is not legal advice, and reading it or contacting us does not create an attorney–client relationship. Allegations in lawsuits are claims, not findings. Prior results do not guarantee a similar outcome. Attorney advertising.