Recall 21V405 affects 17 2020 Mercedes-Benz Glb 250 vehicles for an improperly attached passenger air bag module. Repair is free at any franchised Mercedes-Benz dealer.
Mercedes-Benz is recalling 17 2020 Glb 250 vehicles because the front passenger air bag inflator and cushion have an attachment defect inside the air bag module. If the cushion tears during deployment, the air bag can fail to protect the passenger as designed, increasing injury risk in a crash; Mercedes-Benz dealers will complete the free repair.
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What's wrong?
The front passenger air bag in the 2020 Mercedes-Benz Glb 250 sits inside the dashboard air bag module. In a crash, the inflator fills the cushion so it can open toward the passenger and help manage crash forces. The inflator, cushion, and attachment points have to stay aligned for the bag to deploy as designed.
In NHTSA campaign 21V405, Mercedes-Benz says a production deviation left a batch of passenger air bag modules built outside specification. The front passenger air bag inflator and cushion were not properly attached inside the module. If the air bag deploys, the cushion can tear instead of opening cleanly, which reduces the protection the system is designed to provide.
There is no warning sign before failure. Mercedes-Benz says the driver will not receive advance warning because of the way this air bag defect works.
Who's affected?
Both listed components point to the same front passenger airbag part.
| 2020 Mercedes-Benz Glb 250 | front air bag |
|---|---|
| 2020 Mercedes-Benz Glb 250 | front air bag |
| Units affected | 17 |
| Field incidents | NHTSA has logged no field incidents to date. |
Not every 2020 Mercedes-Benz Glb 250 is on the list. Check your VIN to confirm whether your specific SUV is included.
What's the safety risk?
If the front passenger air bag does not deploy properly in a crash, injury risk increases for the passenger. There is no warning sign before failure, so the VIN check decides whether this applies to your Glb 250. Schedule the recall repair soon if your VIN is included. Repair is free at any franchised Mercedes-Benz dealer.
What should I do?
- Check your VIN to confirm your 2020 Mercedes-Benz Glb 250 is included in this recall.
- Contact your nearest franchised Mercedes-Benz dealer to schedule the free front passenger air bag module replacement that fixes the improperly attached inflator and cushion.
- Bring the owner letter if you have it, and reference recall number 21V405 when you call.
- Avoid carrying a front-seat passenger until the repair is complete if you have another safe transportation option.
What happens at the repair
At the dealer, a Mercedes-Benz technician replaces the front passenger air bag module covered by the recall. The replacement parts and labor are free. Out-of-pocket repairs already paid are handled through the existing warranty, not through a separate reimbursement program, because the involved vehicles were not previously subject to this condition. Ask the service desk how warranty coverage applies if you have prior repair paperwork.
| Reimbursement | Warranty coverage applies |
|---|
Timeline
| May 28, 2021 | NHTSA published the recall |
|---|---|
| June 7, 2021 | Dealer notification began |
| July 16, 2021 | Owner notification mailed |
| July 27, 2021 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 21V405?
Recall 21V405 covers 17 2020 Mercedes-Benz Glb 250 vehicles with a front passenger air bag module defect. The inflator and cushion can be improperly attached inside the module, which can tear the cushion during deployment. Mercedes-Benz dealers replace the front passenger air bag module for free.
What should I do if my 2020 Mercedes-Benz Glb 250 is on this recall?
Check your VIN to confirm your specific vehicle is included in recall 21V405. If it is, contact a franchised Mercedes-Benz dealer to schedule the front passenger air bag module replacement. Reference recall number 21V405 and Mercedes-Benz recall number 2021060011 when you call.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost, and Mercedes-Benz says dealers will replace the front passenger air bag module free of charge. Parts and labor are covered at any franchised Mercedes-Benz dealer.
What is the safety risk?
The risk is that the front passenger air bag does not deploy properly in a crash. If the cushion tears during deployment, the passenger gets less protection from the air bag, increasing the risk of injury. Confirm your VIN before scheduling service.
When were owners notified about recall 21V405?
Mercedes-Benz mailed owner notification letters on July 16, 2021. If you bought the vehicle used or never received the letter, the VIN still decides whether the recall applies. You can also call Mercedes-Benz customer service at 1-800-367-6372.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/21V405000 |
|---|---|
| Mercedes-Benz customer service | 1-800-367-6372 |
| NHTSA recall # | 21V405 |
| NHTSA recall # (full) | 21V405000 |
Source documents
-
Download Recall Document (PDF) (PDF) - Download Quarterly Report (PDF)
- Download Recall Investigation Document (PDF) (PDF)
- Download Owner Notification Letter (PDF)
- Download Owner Notice (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 23, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →