Recall 18V924 affects 199 2018 Collins Sh, T24, Dh, Th, T22, and P24 buses for loose seat bolts. Free repair at a franchised Collins dealer.
Collins is recalling 199 2018 Sh, T24, Dh, Th, T22, and P24 buses because bolts that connect the passenger-seat legs were not properly tightened. Improperly tightened seat bolts can increase the risk of injury in a crash, and Collins dealers will complete the repair free of charge.
Does this recall apply to your specific vehicle?
The official, free per-VIN recall check is run by NHTSA. Enter your VIN and we'll forward you directly — and add you to a free watchlist so you hear about new recalls for your vehicle.
Check my VIN at NHTSARecallNotify doesn't check your VIN — NHTSA's official tool does. We use your email only to alert you to new recalls.
Watch this vehicle for recalls
Add it to your free watchlist and we will alert you as new federal recalls are posted for your year, make and model. New-recall alerts are rolling out now.
You are on the watchlist.
We will email you as new federal recalls are posted for your vehicle.
What's wrong?
The passenger seat bolts on 2018 Collins Sh, T24, Dh, Th, T22, and P24 buses fasten the seat legs to the seat frame. Those legs support the passenger seat and keep it fixed in position during normal bus operation. The connection depends on each bolt being tightened enough to clamp the parts together.
On these buses, the bolts that connect the seat legs to the passenger seats were not properly tightened during production. Collins traced the issue to a missed required step during the build period covered by the recall. A bolt that starts under-tightened does not hold the joint with the clamping force the seat design requires.
There is no warning sign before failure. The defect is in bolt tightness, so an owner or operator should not rely on noise, seat movement, or a dashboard warning to decide whether a bus is included.
Who's affected?
Covers the Sh, T24, Dh, Th, T22, and P24 bus lines, all tied to the same seat assembly component.
| 2018 Collins Sh | seat assembly |
|---|---|
| 2018 Collins T24 | seat assembly |
| 2018 Collins Dh | seat assembly |
| 2018 Collins Th | seat assembly |
| 2018 Collins T22 | seat assembly |
| 2018 Collins P24 | seat assembly |
| Units affected | 199 |
A matching year and model does not confirm inclusion. Check your VIN to confirm whether your specific bus is included.
What's the safety risk?
Seat bolts that are not tightened to specification can leave the seat less secure in a crash and increase the risk of injury. Schedule the inspection and bolt torque repair soon, especially before carrying passengers. Repair is free at any franchised Collins dealer.
What should I do?
- Check your VIN to confirm your 2018 Collins Sh, T24, Dh, Th, T22, or P24 bus is included in this recall.
- Contact a franchised Collins dealer to schedule the free seat-bolt inspection and torque repair that secures the passenger-seat legs.
- Bring the recall notice if Collins mailed one. If not, reference recall number 18V924 when you call.
- Keep passengers out of any seat that feels loose until the dealer inspects and repairs the seat bolts.
What happens at the repair
At the dealer, a Collins technician inspects the passenger seat bolts and torques them to the correct specification. The inspection and torque correction are free under the recall. Collins has a general reimbursement plan on file for documented out-of-pocket repairs tied to this recall. If you've already paid for this seat bolt repair, bring your receipts and prior repair paperwork to the service desk, or contact Collins customer service at 1-800-533-1850, extension 424.
| Reimbursement | Reimbursement available |
|---|
Timeline
| December 21, 2018 | NHTSA published the recall |
|---|---|
| January 25, 2019 | Owner notification mailed |
| February 4, 2019 | Dealer notification began |
| February 8, 2019 | Dealer notification ended |
| February 11, 2019 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 18V924?
Recall 18V924 covers 199 2018 Collins Sh, T24, Dh, Th, T22, and P24 buses with passenger seat bolts that were not tightened to the proper specification. Loose seat-leg bolts can increase injury risk in a crash. Collins dealers inspect and torque the bolts for free.
What should I do if my 2018 Collins Sh, T24, Dh, Th, T22, or P24 is on this recall?
Check your VIN to confirm your specific bus is included in recall 18V924. If it is, contact a franchised Collins dealer to schedule the seat-bolt inspection and torque repair. Reference recall number 18V924 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. For recall 18V924, Collins dealers inspect the passenger seat bolts and torque them to the correct specification free of charge.
What is the safety risk in recall 18V924?
The safety risk is increased injury in a crash. The recall involves passenger seat bolts that connect the legs to the seats. If those bolts are not tightened correctly, the seat structure does not have the intended crash performance. The dealer repair fixes the bolt torque for free.
What if I bought this Collins bus used?
The free recall repair still applies. Recall coverage follows the VIN, not the first owner. Check your VIN to confirm whether your 2018 Collins Sh, T24, Dh, Th, T22, or P24 bus is included, then call a Collins dealer with recall number 18V924.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/18V924000 |
|---|---|
| Collins customer service | 1-800-533-1850 |
| NHTSA recall # | 18V924 |
| NHTSA recall # (full) | 18V924000 |
Source documents
-
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 25, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →