Fontana Lemon Law
Drivers in Fontana are covered by the Song-Beverly Consumer Warranty Act (with Tanner Consumer Protection Act presumption) (Cal. Civ. Code §§ 1790-1795.8 (Song-Beverly); § 1793.22 (Tanner Act)). If your new or used vehicle has a substantial defect the dealer can't fix, you may be entitled to a refund, replacement, or cash settlement. The manufacturer pays the legal fees — you pay nothing out of pocket.
Where Fontana cases are filed
San Bernardino County Superior Court - San Bernardino Justice Center
247 W. 3rd Street, San Bernardino, CA 92415
https://www.sb-court.org/ →Why local conditions matter
How Fontana's driving environment affects vehicle reliability
Fontana has very hot, dry summers with highs frequently 100-110F and cool winters. The Inland Empire valley experiences heavy diesel-truck corridor traffic, dust, and significant summer heat-island effects.
Major routes: I-10 · I-15 · I-210 · CA-66
Engine overheating and cooling-system failures
Sustained triple-digit summer heat plus heavy I-10 / I-15 freight-corridor traffic with long idle times stresses radiators, water pumps, and electric cooling fans, producing coolant warnings and recurring thermal-management warranty repairs.
Diesel emissions (DPF, DEF, EGR) issues
Fontana's logistics and warehouse industry creates heavy diesel pickup and commercial diesel use; the I-15 Cajon Pass climbs and stop-and-go warehouse-corridor driving load DPF and DEF systems, producing regen failures, derates, and emissions-related warranty work.
HVAC and A/C compressor failures
Long idle times in summer traffic plus consistent 105F+ ambient temperatures cycle A/C compressors aggressively, producing weak cooling, compressor seizures, and HVAC blend-door failures that build into Tanner Act repair counts.
Transmission shudder under heat and grade loads
Cajon Pass climbs combined with summer heat repeatedly overheat transmissions and torque converters, producing shudder, harsh shifting, and delayed engagement that often resists single-attempt repairs and builds repeat warranty work.
Dealership clusters
Fontana's franchised-dealer presence is anchored by dealerships along Sierra Avenue, Foothill Boulevard (CA-66), and the Auto Club Speedway area near I-10 and I-15, with additional clusters in nearby Rancho Cucamonga, Ontario, and Rialto. Most mainstream American, Japanese, and Korean brands maintain authorized service operations within central Fontana, and luxury European brands sit a short freeway hop east in Ontario and Rancho Cucamonga.
Brands we see most
Fontana skews heavily toward American trucks and SUVs (Ford, Chevrolet, GMC, Ram, Jeep) and Japanese family vehicles (Toyota, Honda, Nissan). Heavy diesel pickup usage tied to the logistics industry and a strong Korean brand (Hyundai, Kia) family-car presence shape the lemon-claim mix, surfacing diesel emissions cases prominently alongside standard Tanner Act family-vehicle claims.
Areas served around Fontana
- North Fontana
- South Fontana
- Sierra Lakes
- Hunter's Ridge
- Citrus Heights
- Coyote Canyon
Your rights under California law
Song-Beverly Consumer Warranty Act (with Tanner Consumer Protection Act presumption)
Song-Beverly Consumer Warranty Act (with Tanner Consumer Protection Act presumption) (Cal. Civ. Code §§ 1790-1795.8 (Song-Beverly); § 1793.22 (Tanner Act)) gives California drivers the right to a refund, replacement, or cash settlement when the manufacturer can't fix a substantial defect. The threshold is 4 repair attempts or 30 cumulative days out of service, within 18 months of delivery.
Full California lemon law guide →Common questions
Lemon law in Fontana, CA
Where do Fontana residents file lemon law cases?
Most Song-Beverly cases by Fontana residents are filed at the San Bernardino County Superior Court's San Bernardino Justice Center at 247 W. 3rd Street, downtown San Bernardino. Cases are filed against the manufacturer, not the dealer. San Bernardino County is the proper venue if you reside there or bought or serviced the vehicle locally. Filing fees for unlimited civil cases run around $435. Most lemon-law attorneys file electronically and handle venue selection for you, so you generally don't appear in person unless trial is set. Bilingual representation is widely available in the Inland Empire.
My diesel truck keeps failing DPF regens. Is that a lemon?
Often, yes. DPF failures, DEF system faults, EGR codes, and turbo issues are common Song-Beverly claims, especially when the dealer cannot resolve them after multiple attempts. The Tanner Act presumption applies if the same emissions defect has been subject to four or more repairs within 18 months / 18,000 miles, or if the truck has been out of service for cumulative 30+ days. Save every Repair Order, regen attempt log, derate event record, and tow receipt. Fontana logistics-corridor driving often triggers DPF issues quickly due to mixed warehouse stop-and-go and freeway duty cycles.
Does Fontana's 110F summer heat count as misuse?
No. Normal exposure to Inland Empire heat is foreseeable use, not misuse. A manufacturer cannot defeat a Song-Beverly claim by arguing that Fontana summers were too hot for its cooling system, A/C, or transmission. Vehicles sold in California must perform under California conditions. The 'unauthorized or unreasonable use' defense under Cal. Civ. Code 1793.2(e)(3) is narrow and typically requires evidence of off-road abuse, racing, or aftermarket tampering, not ordinary commuting or working in normal regional weather. Save your service records and let the repair history speak for itself.
I use my truck for work. Am I still covered?
Probably. Song-Beverly covers vehicles purchased for business use by entities with five or fewer vehicles registered in California, plus vehicles weighing 10,000 pounds GVWR or less. So an owner-operator or small business with a handful of pickups generally qualifies. Larger commercial fleets fall outside Song-Beverly but may still have federal Magnuson-Moss Warranty Act claims. The key questions are how many vehicles your business has registered in California and your truck's GVWR. Bring your registration and Repair Orders to a lemon-law consultation to confirm coverage.
I bought a used vehicle with a written warranty. Am I covered?
Likely yes. Cal. Civ. Code 1795.5 extends Song-Beverly's repair-or-replace obligations to used vehicles sold by a distributor or retailer with a written warranty. If your vehicle is still under the original factory warranty, claims run against the manufacturer. If only a dealer-issued written warranty applied, claims run against that dealer. The implied warranty duration for used vehicles cannot exceed three months. Keep your sales contract, any warranty booklet handed to you at signing, and every Repair Order showing complaint, diagnosis, and parts replaced.
How much does a Fontana lemon law attorney cost?
Nothing upfront. California lemon-law cases are typically handled on contingency because Cal. Civ. Code 1794(d) requires the manufacturer to pay the prevailing consumer's reasonable attorneys' fees and costs separately from your recovery. You keep your full refund or replacement; the manufacturer pays your attorney on top. Be cautious of any firm that asks for an hourly retainer or a percentage of your refund proceeds. A reputable Song-Beverly firm should provide a written, no-fee engagement letter that clearly explains the contingency structure before you sign anything.
Stuck with a lemon in Fontana?
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