2023 Mci D4520 Problems: 0 Complaints, 1 Recall

The worst 2023 Mci D4520 problems

Ranked by number of owner complaints. Mileage and cost come from what owners wrote.

Tap a problem to see which part fails, at what mileage and in which other years.

Electrical system: instrument cluster/panelReported October 5, 2026 · 683 vehicles affected

What is wrong: 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."
Risk: 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.

Recall number 26V645000 · Recall details

Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.

Is the 2023 Mci D4520 reliable?

Owners have filed 0 complaints about the 2023 Mci D4520.

What is the most common problem with the 2023 Mci D4520?

There are not enough complaints to tell.

How many recalls does the 2023 Mci D4520 have?

1 recall, covering electrical system.

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