Car · Mercedes-Benz recalls
2021 Mercedes-Benz GLS-Class recalls
NHTSA lists 12 recall campaigns for the 2021 Mercedes-Benz GLS-Class, filed between February 14, 2020 and March 15, 2024. Each one is below with what is wrong and the free fix.
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| Part | Filed | Risk |
|---|---|---|
| Electrical system: wiring | March 15, 2024 | Fire risk |
| Power train: software | February 16, 2024 | Stall risk |
| Fuel system, gasoline: fuel pump | June 26, 2023 | Crash risk |
| Visibility: defroster/defogger/hvac system | March 17, 2023 | Fire risk |
| Seats: mid/rear assembly | September 30, 2022 | Crash risk |
| Structure: body | September 12, 2022 | Crash risk |
| Electrical system: software | May 20, 2022 | Injury risk |
| Electrical system: interior/under dash | April 8, 2022 | Fire risk |
| Visibility: glass, side/rear | October 22, 2021 | Crash risk |
| Back over prevention: camera | May 14, 2021 | Crash risk |
| Electrical system: software | February 5, 2021 | Crash risk |
| Electrical system: instrument cluster/panel | February 14, 2020 | Crash risk |
Electrical system: wiringFire risk
Trims named in this campaign: AMG GLS63, GLS450, GLS580
What is wrong. A 48-Volt ground connection under the passenger seat may not be secured properly, resulting in the ground connection overheating.
What could happen. An overheated ground connection can increase the risk of a fire.
The fix. Dealers will inspect and tighten the 48-Volt ground connection as necessary, free of charge. Owner notification letters were mailed on May 3, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2024040002.
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Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2023-2024 GLE 350, 2020-2024 GLE 450, 2020-2023 GLS 580, GLE 580, 2019-2023 GLS 450, 2021-2023 Maybach GLS 600, AMG GLS 63, 2021-2024 AMG GLE 53, AMG GLE 53 Coupe, and AMG GLE 63 S vehicles. A 48-Volt ground connection under the passenger seat may not be secured properly, resulting in the ground connection overheating.
Power train: softwareStall risk
Trims named in this campaign: GLS450
What is wrong. The transmission may not fully downshift in certain conditions, causing the engine to stall.
What could happen. An engine stall increases the risk of a crash.
The fix. Dealers will update the transmission control unit software, free of charge. Owner notification letters were mailed March 29, 2024. Owners may contact MBUSA customer service at 1-800-367-6372.
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Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2020-2023 GLE 450 and GLS 450 vehicles. The transmission may not fully downshift in certain conditions, causing the engine to stall.
Fuel system, gasoline: fuel pumpCrash risk
Trims named in this campaign: AMG GLS63, GLS450, GLS580
What is wrong. The fuel pump may shutdown, which can result in a loss of drive power.
What could happen. A loss of drive power can increase the risk of a crash.
The fix. Dealers will replace the fuel pump, free of charge. Owner notification letters were mailed on June 14, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2023070012.
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Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021-2023 C-Class, E-Class, S-Class, CLS, SL, GT, GLC, GLE, GLS, and G-Class vehicles. Please refer to MBUSA's recall report for specific vehicle details. The fuel pump may shutdown, which can result in a loss of drive power.
Visibility: defroster/defogger/hvac systemFire risk
Trims named in this campaign: AMG GLS63, GLS450, GLS580
What is wrong. The air conditioner drain hoses may have been incorrectly installed, causing water to drain into the passenger compartment.
What could happen. Water intrusion into the foot wells may cause corrosion and/or short circuits to electrical components, increasing the risk of fire. In addition, the emergency call (eCall) feature may be disabled and the doors may not unlock, increasing the risk of injury. Also, the engine may not start or may enter a limp-home mode, increasing the risk of a crash.
The fix. Dealers will inspect and reinstall the air conditioner drain hoses, as necessary, free of charge. Owner notification letters were mailed April 28, 2023. Owners may contact MBUSA customer service at 1-800-367-6372. This recall is an expansion of recall numbers 21V-288 and 19V-587. MBUSA's numbers for this recall are 2023030014 and 15.
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Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2020-2021 GLE350, GLE450, GLS450, GLS580, 2021 AMG GLE53, AMG GLE63, Maybach GLS600, AMG GLS63, and 2020 GLE580 vehicles. The air conditioner drain hoses may have been incorrectly installed, causing water to drain into the passenger compartment.
Seats: mid/rear assemblyCrash risk
Trims named in this campaign: AMG GLS63, GLS450, GLS580
What is wrong. Due to a manufacturing error, the locks on the third-row seatbacks may fail in the event of a crash.
What could happen. A seat with a seatback lock failure may not properly restrain occupants, increasing the risk of injury during a crash.
The fix. Dealers will inspect and replace the third-row seatback, as necessary, free of charge. Owner notification letters were mailed November 18, 2022. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2022100011.
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Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021 AMG GLS63, 2020-2022 GLS450 and GLS580 vehicles. Due to a manufacturing error, the locks on the third-row seatbacks may fail in the event of a crash.
Structure: bodyCrash risk
Trims named in this campaign: AMG GLS63, GLS450, GLS580
What is wrong. Due to a manufacturing error, the rear door window trim bars may detach.
What could happen. Detached trim bars may cause a road hazard and increase the risk of a crash or injury.
The fix. Dealers will inspect and secure the rear window trim bars, as necessary, free of charge. Owner notification letters were mailed November 1, 2022. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2022090010.
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Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2020-2022 GLE350, GLE450, GLS450, 2021-2022 AMG GLE53, 2020-2021 GLE580, GLS580, and 2021 GLE400e, AMG GLS63, AMG GLE63 S, and Maybach GLS600 vehicles. Due to a manufacturing error, the rear door window trim bars may detach.
Electrical system: softwareInjury risk
Trims named in this campaign: AMG GLS63, GLS450, GLS580
What is wrong. An error in the communication module's SIM card software can cause a mobile network connection failure, disabling the emergency call (eCall) system.
What could happen. A disabled eCall system would prevent a vehicle occupant from contacting the emergency services call center in an emergency, potentially delaying emergency responders and increasing the risk of injury.
The fix. The communication module software will be updated through an Over-the-Air (OTA) update or by a dealer, free of charge. Owner notification letters were mailed July 8, 2022. Owner notification letters will be mailed in phases, on July 8, 2022, May 17, 2024, July 29, 2024, and September 27, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's numbers are for this recall is 2022060005 and 2023110006.
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Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2022 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, AMG GT-Class, C-Class, E-Class, S-Class, SL-Class, GLC-Class, CLS-Class, GLB-Class, and G-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details. An error in the communication module's SIM card software can cause a mobile network connection failure, disabling the emergency call (eCall) system.
Electrical system: interior/under dashFire risk
Trims named in this campaign: AMG GLS63, GLS450, GLS580
What is wrong. A ground cable bolt for the 48V ground connection under the front passenger seat may not be secured properly, which can cause the electrical cable to overheat.
What could happen. An overheated electrical cable can increase the risk of a fire.
The fix. Dealers will inspect and tighten the ground cable bolt, as necessary, free of charge. Owner notification letters were mailed July 8, 2022. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2022040017.
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Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2020-2022 GLE450, GLS450, 2021-2022 AMG GLE53, 2020-2021 GLE580, GLS580, 2021 AMG GLE63, Maybach GLS600 and AMG GLS63 vehicles. A ground cable bolt for the 48V ground connection under the front passenger seat may not be secured properly, which can cause the electrical cable to overheat.
Visibility: glass, side/rearCrash risk
Trims named in this campaign: AMG GLS63 S, GLS450, GLS580
What is wrong. The rear window may be insufficiently bonded to the tailgate, which could allow the rear glass to detach.
What could happen. Detached rear glass can become a road hazard, increasing the risk of a crash.
The fix. Dealers will replace the rear window, free of charge. Owner notification letters were mailed December 8, 2021. Owners may contact MBUSA customer service at 1-800-367-6372.
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Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2021 GLE 350, GLE 580, GLS 450, GLS 580, AMG GLE 53, AMG GLE 63 S, and AMG GLS 63 S vehicles. The rear window may be insufficiently bonded to the tailgate, which could allow the rear glass to detach.
Back over prevention: cameraCrash risk
Trims named in this campaign: AMG GLS63, GLS450, GLS580
What is wrong. The MBUX multimedia system software may cause the display to remain black, or reboot after startup.
What could happen. A backup camera that displays a blank image reduces the driver's rear view, increasing the risk of a crash or injury.
The fix. The multimedia system software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. Owner notification letters were mailed beginning June 28, 2021. Owners may contact MBUSA customer service at 1-800-367-6373. MBUSA's number for this recall is 2021050012.
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Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2019-2021 CLA-Class, GLE/GLS-Class, A-Class, E-Class, E-Class Coupe and Convertible, GLA/GLB-Class, GLC-Class, CLS-Class, and AMG GT-Class 4-door Coupe vehicles. Please refer to MBUSA's recall report for specific vehicle model details. The MBUX multimedia system software may cause the display to remain black, or reboot after startup. This could result in the rearview camera image not displaying properly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 111, "Rear Visibility."
Electrical system: softwareCrash risk
Trims named in this campaign: AMG GLS63, GLS450, GLS580
What is wrong. The software design of the communication module may fail to communicate the correct vehicle location for the emergency call system (eCall) in the event of a crash.
What could happen. Failure of the eCall system may result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash.
The fix. MBUSA will notify owners, and the communication module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. The recall began March 12, 2021. Owners may contact MBUSA customer service at 1-877-762-8267. MBUSA's number for this recall is 2021020025.
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Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2016 - 2021 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, GT-Class, C-Class, E-Class, S-Class, CLS-Class, SL-Class, B-Class, GLB-Class, GLC-Class, and G-Class vehicles. Please refer to the Part 573 report for specific vehicle model details. The software design of the communication module may fail to communicate the correct vehicle location for the emergency call system (eCall) in the event of a crash.
Electrical system: instrument cluster/panelCrash risk
Trims named in this campaign: AMG GLS63, GLS450, GLS580
What is wrong. The instrument cluster software may deactivate the illumination of certain interior switches (switch bar, overhead control unit, steering wheel) if the hazard lights are turned on and the ignition switch is in the 'off' position.
What could happen. If the interior switches are not illuminated, they may be more difficult to find and operate, increasing the risk of a crash.
The fix. MBUSA will notify owners, and dealers will update the instrument cluster software, free of charge. The recall began March 31, 2020. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2020030019.
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Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2020 CLA250, CLA250 4MATIC and CLA35 AMG 4MATIC, 2020-2021 GLE350, GLE350 4MATIC, GLE450 4MATIC, GLS450 4MATIC and GLS580 4MATIC and 2021 GLE53 AMG Coupe, GLE63S AMG 4MATIC, GLS63 AMG 4MATIC and Maybach GLS600 4MATIC vehicles. The instrument cluster software may deactivate the illumination of certain interior switches (switch bar, overhead control unit, steering wheel) if the hazard lights are turned on and the ignition switch is in the 'off' position. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 101, "Control and Displays."
Check that your car is on the list
Most campaigns cover only cars built in a certain date range or at a certain plant, so a 2021 Mercedes-Benz GLS-Class may or may not be included. The VIN is the only sure test. It is 17 characters, on the dashboard by the windshield and on the driver door jamb sticker. Look up your VIN at NHTSA to see whether a campaign is open for your exact car.
How to confirm the repair is free
- Call any authorized Mercedes-Benz dealer service desk and give them the VIN and the campaign number from the list above.
- Ask them to confirm the campaign is open for your car. If it is, the parts and labor are covered.
- If the dealer says the part is not in stock, ask for a written note with the date, and ask about a loaner if the notice says not to drive the car.
- Keep the repair order. It shows the campaign number and proves the work was done.
If you already paid for a repair that a recall later covered, Mercedes-Benz may owe you a refund. Ask the dealer or Mercedes-Benz customer service about reimbursement, and keep your receipts.
Other model years of the GLS-Class
More: all Mercedes-Benz recalls, check-engine codes, car repair costs.
2021 Mercedes-Benz GLS-Class recall questions
How many recalls does the 2021 Mercedes-Benz GLS-Class have?
NHTSA lists 12 recall campaigns for the 2021 Mercedes-Benz GLS-Class. A campaign can cover only some cars of that model year, so check your VIN to see whether yours is included.
Is a recall repair on a 2021 Mercedes-Benz GLS-Class free?
Yes. A safety recall repair is free at an authorized Mercedes-Benz dealer, whatever the age or mileage of the car and no matter who owns it now.
How do I know if my 2021 Mercedes-Benz GLS-Class was already fixed?
Enter the VIN on NHTSA's recall lookup at nhtsa.gov/recalls. It shows whether a campaign is open for that exact car. You can also ask a dealer to run the VIN, or look at the service history paperwork for the campaign number.
Source: NHTSA recalls API, checked 2026-10-29. Text is NHTSA's wording of each campaign. New campaigns are added over time. Not a repair shop, estimates only.