Skip to content
stoplemons
San Bernardino County

Upland Lemon Law

Drivers in Upland 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 Upland cases are filed

San Bernardino County Superior Court — Rancho Cucamonga District (Civil Division)

8303 N. Haven Avenue, Rancho Cucamonga, CA 91730

https://www.sb-court.org/ →

Why local conditions matter

How Upland's driving environment affects vehicle reliability

Upland sits at the base of the San Gabriel Mountains in the Inland Empire, with hot dry summers regularly above 95 F and cool winters with Santa Ana wind events. The combination of dust, heat, and sustained freeway driving on I-10 stresses cooling, HVAC, and battery systems.

Major routes:  I-10 · CA-210 · I-15

Cooling and HVAC failures

Triple-digit Inland Empire summers force air conditioning compressors and radiators to run at peak load during long commutes down I-10 and CA-210, exposing weak condensers, evaporators, and coolant pumps that pass inspection in cooler coastal climates.

Battery and electronics degradation

Sustained ambient heat over 100 F accelerates 12V battery sulfation and high-voltage EV pack degradation, producing repeat no-start, charge-loss, and infotainment-reset complaints that dealers struggle to reproduce in milder conditions.

Brake and transmission wear from grade driving

Daily descents from the foothills and stop-and-go congestion on the 10 freeway through Ontario create heat cycling that surfaces early transmission shudder, torque-converter shudder, and warped brake rotors well before manufacturer mileage thresholds.

Dealership clusters

Upland buyers most often purchase along the Auto Center Drive corridor in neighboring Ontario and Montclair, with secondary clusters of franchise dealerships along Foothill Boulevard (historic Route 66) and near the I-10/Mountain Avenue interchange. Many Upland residents also cross into Claremont and Rancho Cucamonga for European brands, putting the relevant service records across multiple Inland Empire dealer rooftops.

Brands we see most

Inland Empire commuter mix skews toward Toyota, Honda, Ford, Chevrolet, and Ram trucks for the long I-10 drive into Los Angeles County, with growing Tesla and Hyundai/Kia EV adoption as households add second vehicles for shorter local trips.

Areas served around Upland

  • North Upland
  • Downtown Upland
  • San Antonio Heights
  • Sycamore Hills
  • Colonies
  • Foothill Boulevard corridor

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 Upland, CA

Where would my California lemon law case be filed if I live in Upland?

Most Song-Beverly cases brought by Upland residents are filed in the San Bernardino County Superior Court, typically in the Rancho Cucamonga District civil division at 8303 N. Haven Avenue. Venue under California law generally lies where the contract was entered, where the defect occurred, or where the manufacturer transacts business, so cases against major automakers also frequently belong in San Bernardino. Your attorney will choose the courthouse that best fits the dealership location, your residence, and where the manufacturer regularly does business in California.

Does Inland Empire heat actually matter to my California lemon law claim?

It can matter as evidence, even though Song-Beverly itself does not require you to prove a climate cause. Upland regularly sees summer temperatures above 100 F, and that heat tends to surface defects in cooling systems, batteries, EV thermal management, and infotainment hardware that may not appear during a brief dealer test drive. Documenting when the problem occurs (during long freeway drives, on hot afternoons, after the car sits in the sun) helps your attorney show the manufacturer that the nonconformity is real and persistent under normal Inland Empire use, which is exactly what Cal. Civ. Code 1793.2 requires the manufacturer to repair.

I bought my car in Ontario or Montclair but live in Upland — does that change anything?

No. The California Song-Beverly Consumer Warranty Act applies to any new or used vehicle sold or leased with a written manufacturer's warranty in California, regardless of which Inland Empire city the dealership sits in. Your repair history at any authorized dealer counts toward the Tanner Act presumption of four repair attempts (or 30 cumulative days out of service) within 18 months or 18,000 miles. The lawsuit is normally filed in San Bernardino County Superior Court because that is where you live and where many of the repair attempts occurred.

How long do Upland drivers have to file a Song-Beverly lemon law claim?

California's general statute of limitations for a Song-Beverly breach-of-warranty claim is four years, running from the date the manufacturer fails to repair the defect within a reasonable number of attempts. AB 1755 (effective 2025) added an outer deadline: claims must be filed within one year after the express warranty expires and no later than six years from original delivery. Upland buyers who notice repeat issues should contact a lemon law attorney before the warranty runs, because waiting until repairs stop being free often cuts off your best evidence.

My EV keeps losing range in the Inland Empire summer — is that a lemon law issue?

It can be. Sustained ambient temperatures above 100 F in Upland accelerate battery degradation, and many EV owners report unexpected range loss, charging faults, and thermal management warnings during their first Inland Empire summer. Under Song-Beverly, if the manufacturer cannot repair a substantial nonconformity (such as a defective high-voltage pack, charger, or thermal control) within a reasonable number of attempts, you may be entitled to a refund or replacement. Save your dealer repair orders, charging logs, and any range/charge-rate data your car records — those records are central to proving the defect.

What kind of recovery is realistic for Upland drivers under California lemon law?

If the manufacturer cannot conform the vehicle to warranty, Cal. Civ. Code 1793.2(d) lets you choose between a comparable replacement vehicle or a full refund of the purchase price (including tax, license, registration, and finance charges) less a mileage offset based on miles driven before the first repair attempt. If the manufacturer's failure was willful, Cal. Civ. Code 1794(c) allows a civil penalty up to two times your actual damages. The manufacturer also pays your reasonable attorneys' fees and costs under Cal. Civ. Code 1794(d), which is why most California lemon law cases can be handled with no out-of-pocket fee.

Do I need to use BBB AUTO LINE arbitration before filing in San Bernardino County?

No, not as a general rule. Song-Beverly arbitration is only mandatory if the manufacturer maintains a qualified third-party program that substantially complies with Cal. Civ. Code 1793.22 and FTC Rule 703 — and only if you want to invoke the Tanner Act presumption from arbitration. Most manufacturers either do not maintain a qualified program or do not require pre-suit arbitration for Song-Beverly claims, so you can file directly in San Bernardino County Superior Court. Your attorney will check whether your specific automaker requires BBB AUTO LINE before filing.

Stuck with a lemon in Upland?

Free case review. No fees unless we win — and the manufacturer pays the legal fees, not you.