Electrical and Software Defects in New York Lemon Law Cases

Modern vehicles run on dozens of networked computers. As more vehicle functions move into software, electrical and software defects have become a major driver of New York Lemon Law cases. Does the issue substantially impair use, value, or safety?

What counts as an electrical / software defect

Engine and transmission control software

Bad ECU/TCM software causes stalling, poor shifting, or “limp mode” triggers. Each reflash counts as a repair attempt under § 198-a(d).

Wiring harness failures

Corroded, chafed, or improperly routed harnesses.

Battery management system (BMS) failures

Premature 12V battery failures, “vehicle drained” no-start conditions.

Safety-equipment software bugs

When software defects affect ABS, traction control, stability control, lane-keep assist — strong § 349 exposure.

ADAS failures

Adaptive cruise, lane departure warning, automated parking — when these fail unpredictably, safety hazards.

Infotainment crossing into safety

When failures spill into safety equipment — backup camera, climate, ADAS warnings — qualifies.

Software reflashes as repair attempts

Pattern: dealer performs update, consumer told problem fixed, symptom returns. Each reflash counts as a repair attempt.

OTA updates

Tesla and others use OTA updates. Whether OTAs count as repair attempts under § 198-a is unsettled but trends toward “yes” when the OTA targets a specific defect.

Diagnostic challenges

Intermittent issues are hard for dealers to reproduce. Strategies:

• Record video.
• Note specific trigger conditions.
• Multi-day diagnostic holds.
• Get OBD-II scan data.

TSBs and § 349 willfulness

When a TSB exists for your symptom and the manufacturer continued to refuse refund, § 349 “knowing” violation findings produce damages with treble enhancement and attorney fees.

EV-specific software issues

See EV-specific defects article for issues specific to battery management, charging, drive-unit software.

What you should do

1. Document each repair attempt — dealer visits AND OTA updates.
2. Note specific trigger conditions.
3. Save dash-cam or smartphone video.
4. Send § 198-a(d) notice.
5. Get a free case review.

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