Commercial Trucks Under California Lemon Law

California Civil Code § 1795.92 extends Song-Beverly Act protections to certain commercial vehicles — specifically, small-business-owned vehicles under 10,000 lbs gross vehicle weight (GVW). This is a narrower category than personal-use coverage, but it brings meaningful protection to the small-business segment that depends on light commercial trucks and vans for daily operations.

Who’s covered under § 1795.92

The statute covers a “buyer” who:

• Is a business entity (not an individual).
• Owns five or fewer commercial vehicles registered in California.
• Purchased the vehicle for commercial use.
• The vehicle has a gross vehicle weight rating of 10,000 lbs or less.

The classic example: a small landscaping business with three trucks. A self-employed contractor with two work vans. A small delivery service with a couple of cargo vans.

Larger commercial fleets — those owning more than five California-registered vehicles or vehicles over 10,000 lbs GVW — fall outside Song-Beverly. Those buyers rely on common-law remedies, Commercial Code warranty provisions, or the federal Magnuson-Moss Act.

Common commercial-truck defect categories

The defect patterns mostly mirror those for personal vehicles:

• Transmission failures — especially in heavy-duty work trucks.
• Engine issues — turbo failures, EGR system issues, emissions-related shutdowns.
• Brake-system defects — particularly serious for loaded trucks.
• Electrical and software issues — increasingly common as commercial vehicles become software-dependent.
• Drivetrain and 4WD/AWD system failures.
• Diesel-specific issues (DPF regen failures, DEF system issues, urea system malfunctions).

Vans (Mercedes Sprinter, Ford Transit, Ram ProMaster, Chevy Express, Nissan NV) and pickup trucks (F-150, Silverado, Ram 1500, Tundra, Tacoma) covered under § 1795.92 produce a steady stream of California lemon-law cases.

How the remedies differ for commercial buyers

For § 1795.92 cases, the remedies generally track the personal-vehicle framework:

• Buyback or replacement of the vehicle.
• Civil penalty for willful violations.
• Attorney fees under § 1794(d).

But commercial-buyer cases have additional dimensions:

Consequential damages (lost business)

A commercial vehicle out of service costs the business operating revenue. Lost business income — sometimes called “lost profit” or “lost-use damages” — may be recoverable as consequential damages under § 1794(b)(2). Documentation is critical: invoices showing work the business couldn’t accept, expense records for substitute vehicles, etc.

Substitute vehicle costs

When the commercial buyer rents or leases a substitute vehicle during the defect period, those costs are recoverable as incidental damages.

Tax treatment

Commercial buybacks may have different tax consequences than personal buybacks. Consult a tax advisor or CPA.

Vehicle-replacement substitutability

For commercial use, “substantially identical” replacement may require specific equipment configurations (trailer hitches, tool boxes, racks, work-truck packages). The buyer may need to negotiate for an appropriately equipped replacement or accept additional cash to install equipment on the replacement.

Repair-attempt counting for commercial vehicles

The same § 1793.22 framework applies. The 18-month/18,000-mile presumption window can pass quickly for commercial vehicles that accumulate high mileage — many commercial vehicles hit 18,000 miles in 6-8 months.

Documentation is even more important for commercial cases because:

• Mileage accumulates fast, increasing the mileage offset (though still capped to first-repair mileage).
• Out-of-service time directly translates to lost business revenue.
• Multiple drivers may use the vehicle, requiring clear logs of who reported what when.

What manufacturers typically argue

Defense playbook for commercial cases:

• “Five-vehicle threshold.” Manufacturers will check whether the buyer truly owns no more than five California-registered vehicles. Documentation of fleet size matters.
• “Operator abuse.” Commercial vehicles get hard use; manufacturers argue specific operators damaged the vehicle.
• “Overloading.” Vehicles loaded beyond their rated capacity — common in delivery and construction operations — may have causation arguments against warranty.
• “Modifications for commercial use.” Tool boxes, plows, lift gates, and other commercial-use modifications may be argued to have contributed to specific failures.

These defenses are stronger in commercial cases than in personal cases, but still defeatable with clean records.

The procedural process

The basic process mirrors personal-vehicle cases:

1. Document repair attempts.
2. Send § 1793.22 written notice.
3. Consult a California lemon-law attorney.
4. File a complaint if necessary.
5. Move through discovery, mediation, and settlement.

Most commercial cases settle pre-trial.

What you should do

If your business owns a commercial truck or van under 10,000 lbs GVW and you’ve had multiple repair attempts:

1. Confirm your fleet size (5 or fewer California-registered vehicles).
2. Pull every repair order and out-of-service record.
3. Quantify lost business income if applicable.
4. Document substitute-vehicle costs.
5. Get a free case review — § 1795.92 cases are a specialty within Song-Beverly practice.

The buyer-friendly framework that makes personal-vehicle cases work in California — attorney-fee shifting, civil-penalty exposure, mandatory buyback math — applies to qualifying commercial cases as well. Small businesses with light commercial vehicles can pursue lemon-law claims as effectively as personal buyers.

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