Recall 11V540 covers 10 2006-2007 Molly Trolley transit buses for a loose air-conditioner fuse that can arc. The Carrier retrofit service is free.
Molly Trolley is recalling 10 2006-2007 Molly Trolley transit buses with Carrier GenV EM-1 evaporator units because the fuse can loosen in its holder, creating high resistance and arcing. Enough arcing can melt the fuse holder and start a vehicle fire; the dealer repair will be free once available.
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What's wrong?
The affected 2006-2007 Molly Trolley buses use a Carrier GenV EM-1 evaporator unit as part of the air conditioning system. The evaporator is the inside portion of the system that absorbs heat from cabin air, while its electrical circuit uses a fuse to protect the wiring if current rises too high.
In these buses, time, temperature, and vibration can loosen the fuse inside its holder. A loose fuse does not make a clean electrical contact, so resistance rises at that connection. High resistance creates heat, and the loose contact can arc, which means electricity jumps across a small gap instead of flowing through a tight connection.
There is no warning sign before failure. An owner or operator should not count on a dashboard light, air conditioning symptom, or visible change before the fuse holder problem develops.
Who's affected?
Covers the same air-conditioner component across both model years.
| 2006 Molly Trolley Molly Trolley | Air conditioner |
|---|---|
| 2007 Molly Trolley Molly Trolley | Air conditioner |
| Units affected | 10 |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether your specific bus is included.
What's the safety risk?
Electrical arcing can melt the fuse holder and lead to a vehicle fire. Arrange the recall retrofit as soon as the kit and repair instructions are available, and stop using the vehicle if the fuse holder shows electrical damage. Repair will be free at any franchised Molly Trolley dealer once available.
What should I do?
- Check your VIN to confirm your 2006-2007 Molly Trolley Molly Trolley is included in this recall.
- Contact Carrier at 1-800-793-4741 for the free retrofit kit and repair instructions.
- Reference recall number 11V540 when you call, and ask whether the Carrier GenV EM-1 evaporator fuse-holder retrofit applies to your bus.
- Keep the bus out of service until the fuse-holder retrofit is complete if you see heat damage, melting, smoke, or electrical arcing near the air conditioner equipment.
What happens at the repair
The remedy is a Carrier retrofit kit for the GenV EM-1 evaporator unit. Molly Trolley will notify owners and explain how to get the kit and repair instructions. Once the repair opens, a Molly Trolley technician installs the retrofit kit free under the recall. Molly Trolley has not provided an owner notification schedule, so do not treat this as a repair that can be scheduled from the recall notice alone.
Timeline
| November 10, 2011 | NHTSA published the recall |
|---|---|
| January 4, 2012 | Owner notification mailed |
Frequently asked questions
What is recall 11V540?
Recall 11V540 covers 10 2006-2007 Molly Trolley transit buses built on Ford and Freightliner chassis with Carrier GenV EM-1 evaporator units. The evaporator fuse can loosen in its holder, creating high resistance and arcing. Molly Trolley will provide Carrier retrofit kit information and repair instructions free of charge.
What should I do if my 2006-2007 Molly Trolley is on this recall?
Check your VIN to confirm your specific transit bus is included in recall 11V540. If it is, contact Molly Trolley service support or Carrier at 1-800-793-4741 for retrofit kit instructions. Reference recall number 11V540 when you call. The service is free.
Is the recall repair free?
Yes. The remedy states that the retrofit service will be performed free of charge. Molly Trolley will notify owners and provide information on how to obtain the Carrier retrofit kit and repair instructions for the affected evaporator-unit fuse holder.
What is the safety risk?
The safety risk is vehicle fire. If enough arcing occurs at the loosened evaporator-unit fuse holder, the fuse holder can melt and a vehicle fire can occur. Confirm your VIN, then arrange the free retrofit service before returning the bus to regular operation.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/11V540000 |
|---|---|
| Molly Trolley customer service | 1-800-793-4741 |
| NHTSA recall # | 11V540 |
| NHTSA recall # (full) | 11V540000 |
Source documents
-
Download Owner Notification Letter (PDF) - Download Defect / Noncompliance Notice (PDF) (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on June 2, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →