Mercedes-Benz is recalling 20 2026 Glc 300 and AMG GLC43 4MATIC vehicles for center rear seat belt defects. Repair is free at dealers.
Mercedes-Benz is recalling 20 2026 Glc 300, Glc 300 4MATIC, Glc 300 4MATIC Coupe, and AMG GLC43 4MATIC vehicles because the center rear seat belts lack the child seat protection function needed to lock a child restraint properly. In a crash, an insufficiently restrained child has an increased risk of injury, and the Mercedes-Benz dealer repair will be free once available.
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What's wrong?
The center rear seat belt in these 2026 Mercedes-Benz Glc and AMG GLC vehicles is supposed to do two jobs. It restrains the passenger in that seating position, and when fully pulled out for a child seat, it should switch into a locking mode that holds the child restraint tight against the seat.
On the recalled Glc 300 4MATIC Coupe, Glc 300, Glc 300 4MATIC, and AMG GLC43 4MATIC vehicles, the wrong center rear seat belt variant was installed at the supplier. That belt was built without the child seat protection function. When used with a child restraint, it does not lock the belt the way the system is designed to lock.
What you notice is tied to that locking function. After fully extending the center rear belt, listen for the normal ratcheting sound as the belt feeds back in. If that sound is missing, the locking function is not engaging.
Who's affected?
All 4 listed variants share the same rear seat belt component.
| 2026 Mercedes-Benz Glc 300 4MATIC Coupe | seat belt |
|---|---|
| 2026 Mercedes-Benz Glc 300 | seat belt |
| 2026 Mercedes-Benz Glc 300 4MATIC | seat belt |
| 2026 Mercedes-Benz AMG GLC43 4MATIC | seat belt |
| Units affected | 20 |
| Field incidents | NHTSA has logged no field incidents to date. |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether your specific SUV is included.
What's the safety risk?
If the center rear seat belt does not lock after being fully extended, a child restraint in that seating position is not held as intended. In a crash, that raises the child's injury risk. Use another seating position and schedule dealer inspection. Repair will be free at any franchised Mercedes-Benz dealer once available.
What should I do?
- Check your VIN to confirm your 2026 Mercedes-Benz Glc 300 4MATIC Coupe, Glc 300, Glc 300 4MATIC, or AMG GLC43 4MATIC is included in this recall.
- Watch for your Mercedes-Benz owner letter; owner notification letters were expected to be mailed May 15, 2026.
- Contact a franchised Mercedes-Benz dealer after your VIN is confirmed and ask when the free rear center seat belt inspection and replacement opens.
- Reference recall number 26V172 when you call so the dealer can find the seat belt recall.
- Avoid using the center rear seat for a child restraint until a dealer confirms the seat belt locks the child restraint properly.
What happens at the repair
When Mercedes-Benz opens the dealer repair, a Mercedes-Benz technician will inspect the center rear seat belt assembly and replace it if it does not meet the recall requirements. Parts and labor are covered under the recall once the repair is available. Paid out of pocket repairs already handled before the recall notice fall under the existing warranty path, not 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
| March 20, 2026 | NHTSA published the recall |
|---|---|
| March 27, 2026 | Dealer notification began |
| March 27, 2026 | Dealer notification ended |
| March 27, 2026 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
Frequently asked questions
What is recall 26V172?
Recall 26V172 covers 20 2026 Mercedes-Benz Glc 300, Glc 300 4MATIC, Glc 300 4MATIC Coupe, and AMG GLC43 4MATIC vehicles with a center rear seat belt that lacks the child seat protection function. Mercedes-Benz dealers will inspect and replace the seat belt assembly for free.
What should I do if my 2026 Mercedes-Benz Glc 300, Glc 300 4MATIC, Glc 300 4MATIC Coupe, or AMG GLC43 4MATIC is on this recall?
Check your VIN to confirm your specific vehicle is included in recall 26V172. If it is, contact a franchised Mercedes-Benz dealer and ask for the center rear seat belt inspection. Reference recall number 26V172 when you call. The dealer repair is free.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost. Mercedes-Benz dealers will inspect the center rear seat belt assembly and replace it when required, free of charge.
What is the safety risk?
The safety risk is an improperly locked child restraint in the center rear seat. In a crash, an insufficiently restrained child has an increased risk of injury. The repair path is to have a Mercedes-Benz dealer inspect and replace the center rear seat belt assembly for free.
When did Mercedes-Benz mail owner letters for recall 26V172?
Mercedes-Benz expected to mail owner letters on May 15, 2026, which was before this page's May 19, 2026 generation date. Used-vehicle owners and owners who missed the letter should check the VIN and reference recall 26V172 when contacting a Mercedes-Benz dealer.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/26V172000 |
|---|---|
| Mercedes-Benz customer service | 1-800-367-6372 |
| NHTSA recall # | 26V172 |
| NHTSA recall # (full) | 26V172000 |
Source documents
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 19, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →