The problem
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2020 GLB 250 vehicles. The accessory power outlet for the second-row seating may have excessive voltage due to an incorrect voltage converter socket.
The risk
Excessive voltage through the accessory power outlet to a connected device can increase the risk of a fire.
The fix
Dealers will inspect and replace the voltage converter, as necessary, free of charge. Owner notification letters were mailed on September 3, 2021. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2021080005.
Recall details
| NHTSA campaign | 21V-526 (21V526000) |
|---|---|
| Manufacturer number | 2021080005 |
| Manufacturer | Mercedes-Benz USA, LLC |
| Component | Electrical system › Wiring › Connectors/plugs › Accesory power outlet/jack/port/USB/sae/cigarette lighter |
| Report date | July 12, 2021 |
| Owners notified | September 3, 2021 |
| Vehicles affected | 1,690 |
| Initiated by | Manufacturer |
Vehicles covered
Owner complaints about the electrical system
Frequently asked questions
Is the recall 21V-526 repair free?
Yes. Mercedes-Benz dealers will fix the problem at no cost: Dealers will inspect and replace the voltage converter, as necessary, free of charge. Owner notification letters were mailed on September 3, 2021. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2021080005.
How do I know if my car is included?
Not every vehicle of the listed model years is affected — the recall covers 1,690 vehicles built in a certain window. Check your 17-character VIN with our VIN recall check or at nhtsa.gov/recalls.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.