Recall 19V924 covers 276 2018-2020 Mci D4500 and D4505 coaches for slipping tag-axle clamps. Repair is free at any franchised Mci dealer.
Mci is recalling 276 2018-2020 D4500 and D4505 coaches with the optional steerable tag axle because mounting block clamps can slip and leave the tag axle out of alignment. When the rear axle no longer tracks with the front of the coach, the rear can strike vehicles or pedestrians; Mci dealers will complete the repair free of charge.
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What's wrong?
On 2018-2020 Mci D4500 and D4505 coaches with the steerable tag axle, the tag axle is the rear support axle that helps carry weight and track behind the front steering axle. A tie rod and locking clamp blocks hold that axle in its forward steer orientation, so the rear of the coach follows the intended path instead of steering off-line.
On affected coaches, the clamp blocks had paint on the clamping surfaces, unmachined fastener surfaces, and fastener contact surfaces that did not sit square to the tie rod clamp surface. That combination lets the clamp fasteners lose torque under load. Once the clamp grip relaxes, the tie rod can slide inside the lock clamps and push the tag axle out of alignment with the front axle.
An owner or operator can see the warning signs during inspection or while driving. The tag axle tires can show visible scrubbing, and the rear of the coach can look offset in the rear view mirrors.
Who's affected?
Spans the D4500 and D4505 across the 2018, 2019, and 2020 model years, all tied to the same rear suspension assembly.
| 2018 Mci D4500 | rear suspension |
|---|---|
| 2018 Mci D4505 | rear suspension |
| 2019 Mci D4505 | rear suspension |
| 2019 Mci D4500 | rear suspension |
| 2020 Mci D4500 | rear suspension |
| 2020 Mci D4505 | rear suspension |
| Units affected | 276 |
| Field incidents | NHTSA has logged 1 field incident to date. |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether this recall applies to your specific bus.
What's the safety risk?
A misaligned tag axle can make the rear of the vehicle track outside the front path. That raises the risk of striking another vehicle or a pedestrian. Watch for tag axle tire scrubbing during inspection or a rear offset visible in the mirrors, then schedule service soon. Repair is free at any franchised Mci dealer.
What should I do?
- Check your VIN to confirm your 2018-2020 Mci D4500 or D4505 coach is included in this recall.
- Contact a franchised Mci dealer to schedule the free block-clamp replacement and fastener retorque that keeps the steerable tag axle aligned.
- Bring the recall notice if Mci mailed one. If not, reference recall number 19V924 when you call.
- Use extra caution until the repair is complete, since tag-axle misalignment lets the rear of the coach track outside its intended path.
- Call Mci customer service at 1-800-241-2947 with questions about scheduling or coach downtime.
What happens at the repair
At the dealer, an Mci technician replaces the tag axle mounting block clamps and retorques the fasteners so the tie rod keeps the forward steer orientation. The recall repair is free, with parts and labor covered. If you paid out of pocket for labor to replace these clamps before the recall work, Mci will reimburse that labor cost. Bring repair paperwork that shows the labor charge, or contact Mci customer service for the claim process.
| Reimbursement | Reimbursement available |
|---|
Timeline
| December 27, 2019 | NHTSA published the recall |
|---|---|
| February 3, 2020 | Dealer notification began |
| February 3, 2020 | Dealer notification ended |
| February 3, 2020 | Interim owner notification (was planned for this date) |
| February 19, 2020 | Owner notification mailed |
Frequently asked questions
What is recall 19V924?
Recall 19V924 covers 276 2018-2020 Mci D4500 and D4505 coaches with the optional steerable tag axle. The tag axle mounting block clamps can slip, putting the tag axle out of alignment. Mci dealers will replace the block clamps and retorque the fasteners for free.
What should I do if my 2018-2020 Mci D4500 or D4505 is on this recall?
Check your VIN to confirm your specific coach is included in recall 19V924. If it is, contact a franchised Mci dealer to schedule the block clamp replacement and fastener retorque. Reference recall number 19V924 when you call. The repair is free.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost, and Mci's remedy states that dealers will replace the block clamps and retorque the fasteners free of charge.
What is the safety risk?
The safety risk is rear-end tracking that does not match the front of the coach. If the tag axle moves out of alignment, the rear of the vehicle can strike other vehicles or pedestrians, increasing crash or injury risk. The dealer repair corrects the clamp and fastener issue.
When did the Mci recall repair become available?
The recall repair began February 19, 2020. Mci dealers replace the tag axle mounting block clamps and retorque the fasteners. Owners can contact Mci customer service at 1-800-241-2947 or a franchised Mci dealer to schedule the free repair.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/19V924000 |
|---|---|
| Mci customer service | 1-800-241-2947 |
| NHTSA recall # | 19V924 |
| NHTSA recall # (full) | 19V924000 |
Source documents
-
Download Recall Investigation Document (PDF) (PDF) - Download Owner Notification Letter (PDF)
- Download Recall Report (PDF)
- Download Quarterly Report (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 23, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →