Brake Defects Under the Montana Lemon Law
Brake failures under Montana's lemon law — safety-critical defects under the 4-attempt / 30-business-day presumption, with mountain-grade fade and mag-chloride corrosion as distinctive factors.
Brake defects are safety-critical under the Montana Lemon Law — a brake failure plainly impairs the safety of the vehicle. Montana reaches them under the 4-attempt / 30-business-day presumption (there is no one-attempt safety shortcut).
Common qualifying brake defects
- Brake failure — loss of stopping ability.
- Mountain-grade brake fade — overheating on long descents (a distinctive Montana factor).
- Premature wear — rotors/pads failing far ahead of schedule.
- ABS malfunctions — warning lights, intermittent loss of ABS.
- Soft or sinking pedal — hydraulic or master-cylinder faults.
- Brake-line corrosion — magnesium-chloride-de-icer-accelerated.
- Brake-by-wire / regenerative-braking defects (EVs/hybrids).
The mountain-grade and mag-chloride factors
Montana’s long mountain descents (the Rockies, Continental Divide) stress brakes and can expose fade or overheating defects. And magnesium-chloride de-icer — the mountain-west winter road treatment — accelerates brake-line and caliper corrosion, a recurring Montana pattern.
No one-attempt rule — but strong on safety
Montana doesn’t reduce the threshold for a serious brake failure, so the 4-attempt / 30-business-day track applies. But a brake-safety defect makes the substantial-impairment element easy to show. Document the seriousness on every repair order.
Proving the case
- Repair orders for the brake symptom across attempts.
- Video of pedal faults, fade, or warning lights.
- NHTSA complaints and TSBs for the platform.
Bottom line
Brake defects qualify under Montana’s presumption — and clearly impair safety — with mountain-grade fade and mag-chloride corrosion distinctive contributors. Document the seriousness and recurrence before the 18,000-mile cap. Get a free case review.
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