Recall 21V672 affects 340 2018-2021 Bolt Custom Trucks Custom Sleeper trucks for detachable window vents. Repair is free at any franchised Bolt Custom Trucks dealer.
Bolt Custom Trucks is recalling 340 2018-2021 Custom Sleeper trucks equipped with Lippert Hehr 6400 Series windows because the adhesive bonding the vented section can fail. A detached vent section raises the risk of a crash or injury, and Bolt Custom Trucks dealers will complete the recall repair free of charge.
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What's wrong?
The Lippert Hehr 6400 Series vented window on the 2018-2021 Bolt Custom Trucks Custom Sleeper is the window assembly used in the sleeper body. Its vented section is the movable or opening portion of the glass, and adhesive holds that section to the rest of the window frame. That bond has to stay secure while the truck moves, vibrates, and sits in heat.
On affected Custom Sleeper trucks, the adhesive bond for the vented portion of the window can fail. Bolt Custom Trucks identified the issue after Lippert recalled windows built for that window series and supplied inspection instructions. The problem is in the window assembly itself, not a normal wear item, and Bolt Custom Trucks said there is no visual or serial number check that clearly separates defective windows before inspection.
There is no warning sign before failure. Owners should not rely on a quick look at the window to decide whether the adhesive bond is sound.
Who's affected?
Spans the 2018, 2019, 2020, and 2021 model years, with the same 6400 Series vented windows listed under equipment and structure.
| 2018 Bolt Custom Trucks Custom Sleeper | Recreational vehicle/trailer |
|---|---|
| 2018 Bolt Custom Trucks Custom Sleeper | body or structural component |
| 2021 Bolt Custom Trucks Custom Sleeper | Recreational vehicle/trailer |
| 2021 Bolt Custom Trucks Custom Sleeper | body or structural component |
| 2019 Bolt Custom Trucks Custom Sleeper | Recreational vehicle/trailer |
| 2019 Bolt Custom Trucks Custom Sleeper | body or structural component |
| 2020 Bolt Custom Trucks Custom Sleeper | Recreational vehicle/trailer |
| 2020 Bolt Custom Trucks Custom Sleeper | body or structural component |
| Units affected | 340 |
| Field incidents | NHTSA has logged 11 field incidents to date. |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether this recall applies to your specific truck.
What's the safety risk?
Adhesive failure can let the vent portion of the window detach from the Custom Sleeper. That creates road debris and increases the risk of a crash or injury. Drive cautiously, avoid handling the affected window, and schedule the inspection soon. Repair is free at any franchised Bolt Custom Trucks dealer.
What should I do?
- Check your VIN to confirm your 2018-2021 Bolt Custom Trucks Custom Sleeper is included in this recall.
- Contact a franchised Bolt Custom Trucks dealer to schedule the free window inspection and vent replacement that fixes the adhesive failure.
- Bring the recall notice if Bolt Custom Trucks mailed one. If not, reference recall number 21V672 when you call.
- Drive cautiously until the inspection is complete, and stop using the truck if the vented window portion is loose or separated.
- Call Bolt Custom Trucks customer service at 260-748-0314 with questions about the free repair.
What happens at the repair
At the dealer, a Bolt Custom Trucks technician inspects the Lippert Hehr 6400 Series windows and checks whether the vented portion of the window needs replacement. If the vent is affected, the dealer replaces it free under the recall. Parts and labor are covered. If you already paid out of pocket for a related window vent repair before the recall notice, Bolt Custom Trucks has a reimbursement plan on file for documented expenses. Bring repair paperwork to the service desk and ask how to submit it.
| Reimbursement | Reimbursement available |
|---|
Timeline
| August 29, 2021 | NHTSA published the recall |
|---|---|
| September 1, 2021 | Dealer notification began |
| September 30, 2021 | Dealer notification ended |
| October 1, 2021 | Interim owner notification (was planned for this date) |
| October 13, 2021 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| November 15, 2021 | Owner notification mailed |
Frequently asked questions
What is recall 21V672?
Recall 21V672 covers 340 2018-2021 Bolt Custom Trucks Custom Sleeper trucks equipped with Lippert Hehr 6400 Series windows. The adhesive bonding the vented window section can fail, letting that section detach and increasing the risk of a crash or injury.
What should I do if my 2018-2021 Bolt Custom Trucks Custom Sleeper is on this recall?
Check your VIN to confirm your specific truck is included in recall 21V672. If it is, contact a franchised Bolt Custom Trucks dealer or Bolt Custom Trucks customer service at 260-748-0314 to schedule the window inspection. Dealers will replace the vent if needed.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost, and Bolt Custom Trucks dealers will inspect the windows and replace the vent if needed free of charge.
Is it safe to drive my Bolt Custom Trucks Custom Sleeper?
This recall does not include a do-not-drive order. The safety risk is that adhesive failure can let the vented window section detach, increasing the risk of a crash or injury. Confirm your VIN, then arrange the free inspection and repair.
When were owners notified about recall 21V672?
Bolt Custom Trucks mailed owner notification letters on October 15, 2021. If you bought the truck used or never received the letter, check your VIN and reference recall 21V672 when you call Bolt Custom Trucks or the dealer.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/21V672000 |
|---|---|
| Bolt Custom Trucks customer service | 260-748-0314 |
| NHTSA recall # | 21V672 |
| NHTSA recall # (full) | 21V672000 |
Source documents
-
Download Quarterly Report (PDF) - Download Recall Document (PDF) (PDF)
- Download Misc. Document (PDF)
- Download Recall Investigation Document (PDF) (PDF)
- Download Owner Notification Letter (PDF)
- Download Recall Report (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 20, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →