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Boulder County

Longmont Lemon Law

Drivers in Longmont are covered by the Colorado Motor Vehicle Lemon Law (Colo. Rev. Stat. §§ 42-10-101 to 42-10-107 (as amended by SB24-192, eff. Aug. 7, 2024)). 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 Longmont cases are filed

Boulder County District Court (20th Judicial District) - Longmont Division

1035 Kimbark Street, Longmont, CO 80501

https://www.coloradojudicial.gov/court-locations/boulder-county →

Why local conditions matter

How Longmont's driving environment affects vehicle reliability

Longmont sits at roughly 5,000 feet just east of the Front Range, where NOAA records dry, wide-amplitude temperature swings, heavy spring hail, and persistent westerly downslope winds. The combination of cold soaks, high-UV exposure, and salt-and-mag-chloride winter road treatments accelerates corrosion, seal, and battery wear.

Major routes:  US-287 · CO-119 (Diagonal Highway) · I-25 · CO-66

Cold-weather EV range and charging defects

Longmont's mix of Boulder County tech-corridor commuters and high-EV-adoption households means Teslas, Ford Lightnings, and Hyundai/Kia EVs spend cold winter overnights outdoors and then take rapid-DC charges along the US-287 / CO-119 corridor, producing recurring complaints about HV battery range loss, charging-port heater failures, and BMS-triggered limp modes.

Diesel emissions-system (DPF/DEF/EGR) failures

Heavy-duty RAM, Ford Super Duty, and Chevrolet Duramax owners in Boulder County who tow recreation trailers up CO-119 and US-36 to the mountains repeatedly trigger active DPF regenerations and DEF-system faults that strand vehicles in limp mode, and these emissions-system warranty repairs frequently exceed the SB24-192 24-business-day threshold.

ADAS and infotainment software defects

Late-model trucks and SUVs from Ford, GM, Stellantis, Toyota, and Hyundai routed across CO-119's high-glare open-sky stretches and US-287's hail-cracked pavement generate repeated warranty visits for phantom-braking, lane-keep dropout, and infotainment lockups - software-only nonconformities that Colorado courts treat as substantial impairments when repairs fail to resolve them.

Dealership clusters

Longmont's primary new-car corridor runs along Main Street (US-287) on the south side of the city near the Ken Pratt Boulevard interchange, with a secondary cluster along the Hover Street / Nelson Road frontage west of US-287. Boulder County buyers also pull regularly from adjacent dealer rows along the US-36 / Diagonal corridor toward Boulder and along I-25 in nearby Erie and Frederick.

Brands we see most

Boulder County registration data shows a heavy skew toward EVs and hybrids (Tesla, Ford, Hyundai, Kia, Toyota) reflecting the area's renewable-energy and tech workforce, with strong representation of Subaru, Toyota, and Honda for outdoor-recreation use. Heavy-duty diesel pickups from RAM, Ford, and Chevrolet remain common among Boulder County trades and ranching households north and east of the city.

Areas served around Longmont

  • Old Town Longmont
  • Prospect
  • Southmoor Park
  • Quail Ridge
  • Renaissance
  • Mountain Brook

Your rights under Colorado law

Colorado Motor Vehicle Lemon Law

Colorado Motor Vehicle Lemon Law (Colo. Rev. Stat. §§ 42-10-101 to 42-10-107 (as amended by SB24-192, eff. Aug. 7, 2024)) gives Colorado drivers the right to a refund, replacement, or cash settlement when the manufacturer can't fix a substantial defect. The threshold is 3 repair attempts or 24 cumulative days out of service, within 24 months of delivery.

Full Colorado lemon law guide →

Common questions

Lemon law in Longmont, CO

Where would my Longmont lemon law case be filed?

Longmont is the largest city in northern Boulder County, and the Boulder County Justice Center maintains a Longmont division at 1035 Kimbark Street that hears Boulder County District Court and County Court matters. A Colorado Motor Vehicle Lemon Law claim under C.R.S. 42-10-101 et seq. is typically filed in Boulder County District Court, which sits both at the Kimbark Street courthouse in Longmont and at the main courthouse at 1777 Sixth Street in Boulder. Most lemon law claimants file in district court because attorney-fee and sales-tax refund recovery typically pushes total damages above the county court jurisdictional limit.

Do I have to use BBB AUTO LINE before suing in Longmont?

In most cases yes. C.R.S. 42-10-106 requires Colorado consumers to first use any informal dispute settlement procedure that the manufacturer maintains and that substantially complies with 16 C.F.R. Part 703. Most major manufacturers serving the Boulder market participate in BBB AUTO LINE, which is administered by mail and video conference, so no in-person Longmont appearance is required. The arbitrator's decision is non-binding on the consumer, so you can reject it and proceed to Boulder County District Court. The 30-month statute of limitations (for post-August 2024 vehicles) is tolled while arbitration is pending.

Does Colorado's 2024 lemon law update apply to my Longmont vehicle?

Only if your vehicle was sold or leased in Colorado on or after August 7, 2024. SB24-192 lowered the repair threshold to three attempts (two for serious safety defects), shortened the days-out-of-service trigger to 24 business days, expanded coverage to two years or 24,000 miles, and extended the statute of limitations to 30 months from delivery. Longmont vehicles delivered before August 7, 2024 remain subject to the prior law's four-attempt, 30-business-day, one-year/warranty-term framework with a shorter limitations period. The purchase or lease date - not the model year - controls.

Are EVs covered under Colorado's lemon law in Boulder County?

Yes. C.R.S. 42-10-102 defines a 'motor vehicle' broadly enough to cover battery-electric passenger vehicles, pickups, and SUVs, and the 2024 amendments did not exempt EVs. Boulder County has one of Colorado's highest EV adoption rates, and battery, charging-system, drive-unit, and ADAS software defects are common subjects of Longmont-area claims. Repeat warranty repairs for HV battery faults, drive-unit replacement, charging-port failures, or recurring software-related drivability complaints can support a presumption of unreasonable repair attempts under C.R.S. 42-10-103 once the three-attempt or 24-business-day threshold is met.

Can a Longmont resident sue a dealer located in Boulder or Denver?

Yes. Colorado's general venue rule (C.R.C.P. 98) lets a lemon law plaintiff sue in the county where the consumer resides, where the defendant does business, or where the transaction occurred. A Longmont consumer who purchased at a dealer in Boulder, Broomfield, Westminster, or Denver therefore generally has a choice of venues. The manufacturer itself - typically named alongside the dealer for warranty claims - is treated as 'doing business' anywhere it sells through franchised dealers in Colorado, so practical considerations like docket speed and travel often drive the venue decision.

What if my diesel pickup is stuck in limp mode after multiple shop visits?

Recurring diesel emissions-system failures (DPF clogging, DEF-quality faults, EGR or NOx-sensor codes) are a frequent driver of Boulder County lemon law claims, because each warranty visit typically consumes several business days while parts are ordered and regeneration cycles are run. Under SB24-192, only 24 cumulative business days out of service within the two-year/24,000-mile coverage window is enough to presume the manufacturer has had a reasonable number of attempts. Keep every repair order, rental receipt, and tow record; days out of service include time the vehicle is at the dealer awaiting parts, not just hands-on labor time.

Stuck with a lemon in Longmont?

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