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A proposed class action lawsuit targets 2025 Ram 1500 trucks equipped with the 3.0-liter twin-turbocharged Hurricane engine, alleging that problems with the vehicles’ engine and powertrain control modules can cause stalling, misfires, hesitation, and sudden loss of power. The case was filed against FCA US LLC in federal court in Michigan in August 2026.
What is the alleged problem?
According to the lawsuit, the Engine Control Module (ECM) and Powertrain Control Module (PCM) may have problems involving their calibration, programming, or integration with other engine components.
The complaint alleges that these issues can trigger persistent diagnostic trouble codes and check-engine warnings, as well as rough running, misfires, and hesitation under acceleration. More serious incidents allegedly involve loss of engine power, reduced power or “limp mode” operation, and unexpected stalling.
The lawsuit claims that some drivers have experienced these problems while traveling at highway speeds. It also alleges that loss of power-assisted braking can occur alongside the engine-related problems, potentially creating additional safety concerns. The complaint further claims that some owners have taken their trucks to dealers multiple times without receiving a permanent solution.
According to the filing, attempted repairs have included software updates, module reprogramming, and sensor replacement, with one allegation stating that some consumers made as many as eight repair visits. These are allegations contained in the lawsuit and have not been established in court.
What Ram 1500 owners should do
The proposed class action currently concerns 2025 Ram 1500 models fitted with the 3.0-liter Hurricane engine. Owners experiencing stalling, misfires, warning lights or unexplained power loss should document the symptoms and retain invoices, diagnostic reports and records of dealership visits.
The lawsuit is seeking to represent current and former owners and lessees of affected vehicles in the United States. Its allegations include claims that FCA knew about the alleged defect but failed to adequately disclose or repair it.
If your Ram 1500 keeps going back to the dealer
Repeated attempts to diagnose an intermittent engine problem can leave owners with a truck they cannot fully rely on and a growing stack of repair records.
If your Ram 1500 has experienced unexplained stalling, repeated misfires, or serious power loss, The Lemon Firm is here to help you understand how those problems may affect your rights as a vehicle owner.
Get in touch with our case analysts today, and let’s look at the circumstances surrounding your truck.