MCI D4020 recall: Hazard-light reminder may stay dark
MCI D4020, D4020ISTV, D4520 and related coaches may lack an instrument-panel reminder for active hazard warning lights; MCI will update the software free of charge.
Operators of the listed MCI coaches should pay attention to a hazard-warning indication that may not appear when the master run switch is off. The missing reminder can leave exterior hazard lights activated after they are no longer needed.
What the official recall record says
MCI: D4020, D4020ISTV, D4520 and other models
The instrument-panel indicator may not illuminate while the hazard warning lights are on and the master run switch is off. Without that reminder, a driver may not realize the exterior hazard lights remain active and may leave them on unintentionally, which can confuse other drivers and increase crash risk. MCI will update the software free of charge.
Owner information from the official record
- Owner notices: Owner notification letters are expected to be mailed November 24, 2026.
- Manufacturer contact: Owners may contact MCI customer service at 1-800-241-2947.
Official record
- NHTSA recall ID: 26V645000
- Vehicles listed: MCI D4020 (2026); MCI D4020ISTV (2026, 2025, 2024); MCI D4520 (2026, 2025, 2024, 2023, 2022, 2021, 2020, 2018); MCI D45CRT (2026, 2025, 2024, 2023, 2022, 2021); MCI D45CRTE (2024); MCI D45CRTELE (2023, 2022, 2021); MCI D45CRTLE (2026, 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018)
- Potentially affected: 683
- Components: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EXTERIOR LIGHTING:HAZARD FLASHING WARNING LIGHTS
- Report received: October 5, 2026
- Owner notification: Owner notification letters are expected to be mailed November 24, 2026.
- Defect: Motor Coach Industries (MCI) is recalling certain 2018-2026 buses. Please see the complete list of models above. The instrument panel indicator light may not illuminate when the hazard warning lights are on and the master run switch is in the ‘Off’ position. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 108, “Lamps, Reflective Devices, and Associated Equipment.”
- Safety consequence: Without the illuminated reminder, the driver may fail to turn off the exterior lights when no longer needed. Hazard warning lights that remain activated unintentionally can confuse other drivers, increasing the risk of a crash.
- Remedy: MCI will update the software, free of charge. Owner notification letters are expected to be mailed November 24, 2026. Owners may contact MCI customer service at 1-800-241-2947.
What owners should do next
Use the official campaign information to arrange the listed software remedy through MCI or an authorized dealer.
A headline cannot confirm whether a particular vehicle is affected. Use the official NHTSA recall lookup with the vehicle identification number and contact the manufacturer or an authorized dealer for vehicle-specific guidance.
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Sources used for this report.
References checked October 18, 2026.
National Highway Traffic Safety Administration. Safety Recall Report: Campaign 26V645000. Report received October 5, 2026. Accessed October 18, 2026.
To check a specific vehicle, use the official NHTSA VIN recall lookup.