Hearth Record

Electrical system: wiring: connectors/plugs: accesory power outlet/jack/port/usb/sae/cigarette lighter (Mercedes-Benz)

Vehicle recall 21V-526. NHTSA received Mercedes-Benz USA, LLC’s report on Jul 12, 2021.

NHTSA’s own record, on nhtsa.gov

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The short answer

NHTSA received Mercedes-Benz USA, LLC’s report on Jul 12, 2021. Copied from NHTSA on Oct 19, 2026.

Every line below is in NHTSA’s own words, with its source beside it.

What’s wrong with it?

Excessive voltage through the accessory power outlet to a connected device can increase the risk of a fire.

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.

Source:

NHTSA, Recalls flat file. Released Oct 19, 2026. Updated daily.

  • NHTSA’s part: Electrical system: wiring: connectors/plugs: accesory power outlet/jack/port/usb/sae/cigarette lighter.

What should you do?

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.

Source:

NHTSA, Recalls flat file. Released Oct 19, 2026. Updated daily.

  • How to reach the firm: Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
  • Check a vehicle by its VIN at NHTSA: the recalls still open on it are listed there.

Which ones are recalled?

NHTSA counts 1,690 vehicles potentially involved, across everything this recall names.

Each model year opens its own page: every recall naming it, its owner complaints and its crash ratings.

Source:

NHTSA, Recalls flat file. Released Oct 19, 2026. Updated daily.

  • Mercedes-Benz GLB 2502020

Who is recalling it?

  • Made by Mercedes-Benz USA, LLC.
Source:

NHTSA, Recalls flat file. Released Oct 19, 2026. Updated daily.

What the record doesn’t say

  • NHTSA’s recall file doesn’t say whether anyone was hurt. Owners’ complaints are counted on each vehicle’s page.
  • Whether one vehicle or seat has been fixed: only its maker, or NHTSA’s lookup with a VIN, can say.
  • How many have been returned or fixed isn’t in the notice.
Source:

Hearth Record wrote these lines.

Sources

  • National Highway Traffic Safety Administration, Recalls flat file (FLAT_RCL_POST_2010).

    Released Oct 19, 2026 and checked Oct 19, 2026. Updated daily. Public domain (U.S. Government work).

Source:

Vehicle, car seat, tire and vehicle equipment recalls, owner complaints and crash ratings are from the National Highway Traffic Safety Administration (NHTSA). Copied on Oct 19, 2026.

How to read a record

Four things every record does, shown on an example record made up for this guide.

An example record, made up for this guide

An example nursing home

Made up for this guide: no real place is shown

Not fully inspected in over two years (CMS flag)

11 health citations at the latest inspection cycle

The state average is 14.3.

Source:

CMS, State and US Averages and Health Deficiencies. Released Oct 28, 2026. Updated monthly.

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Every fact names its source.

Who published it, when, and how often it changes sit beside each fact, with a link to the agency’s own file.

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