Recalls (12)
NHTSA lists 12 recall campaigns for the 2021 Mercedes-Benz GLS450. Check whether yours was repaired with NHTSA's free VIN lookup ↗
Only NHTSA and your automaker know whether your specific car was repaired. PlainVIN shows every recall campaign listed for a model year, with the official text and how many cars have been fixed so far.
Check on NHTSA ↗Listed for 2021 Mercedes-Benz GLS450. Not checked against your VIN.
Improperly Secured 48-Volt Ground Connection
Electrical system · wiring
Official NHTSA text
- Summary
- 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.
- Consequence
- An overheated ground connection can increase the risk of a fire.
- Remedy
- 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.
84.2% repairedof 116,020 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA
or ask a dealer to check campaign 24V207000
Listed for 2021 Mercedes-Benz GLS450. Not checked against your VIN.
Transmission Control Unit Software May Cause Stall
Power train · automatic transmission · control module · software
Official NHTSA text
- Summary
- 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.
- Consequence
- An engine stall increases the risk of a crash.
- Remedy
- 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.
79.8% repairedof 105,071 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA
or ask a dealer to check campaign 24V118000
Listed for 2021 Mercedes-Benz GLS450. Not checked against your VIN.
Loss of Drive Power from Fuel Pump Shutdown
Fuel system, gasoline · delivery · fuel pump
Official NHTSA text
- Summary
- 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.
- Consequence
- A loss of drive power can increase the risk of a crash.
- Remedy
- 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.
92.2% repairedof 143,551 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA
or ask a dealer to check campaign 23V445000
Listed for 2021 Mercedes-Benz GLS450. Not checked against your VIN.
Water Intrusion from AC Drain Hose May Cause Short
Visibility · defroster/defogger/hvac system
Official NHTSA text
- Summary
- 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.
- Consequence
- 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.
- Remedy
- 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.
88% repairedof 61,450 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA
or ask a dealer to check campaign 23V177000
Listed for 2021 Mercedes-Benz GLS450. Not checked against your VIN.
Seatback Lock Failure
Seats · mid/rear assembly
Official NHTSA text
- Summary
- 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.
- Consequence
- A seat with a seatback lock failure may not properly restrain occupants, increasing the risk of injury during a crash.
- Remedy
- 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.
81.1% repairedof 59,574 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA
or ask a dealer to check campaign 22V732000
Listed for 2021 Mercedes-Benz GLS450. Not checked against your VIN.
Rear Door Window Trim Bars May Detach
Structure · body
Official NHTSA text
- Summary
- 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.
- Consequence
- Detached trim bars may cause a road hazard and increase the risk of a crash or injury.
- Remedy
- 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.
91.9% repairedof 161,000 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA
or ask a dealer to check campaign 22V680000
Listed for 2021 Mercedes-Benz GLS450. Not checked against your VIN.
Disabled Emergency Call System
Communication · auto crash notification
Official NHTSA text
- Summary
- 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.
- Consequence
- 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.
- Remedy
- 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.
90.6% repairedof 242,722 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA
or ask a dealer to check campaign 22V365000
Listed for 2021 Mercedes-Benz GLS450. Not checked against your VIN.
Unsecured Ground Connection Bolt
Electrical system · wiring · interior/under dash
Official NHTSA text
- Summary
- 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.
- Consequence
- An overheated electrical cable can increase the risk of a fire.
- Remedy
- 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.
87.8% repairedof 21,306 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA
or ask a dealer to check campaign 22V231000
Listed for 2021 Mercedes-Benz GLS450. Not checked against your VIN.
Rear Window Glass May Detach
Visibility · glass, side/rear
Official NHTSA text
- Summary
- 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.
- Consequence
- Detached rear glass can become a road hazard, increasing the risk of a crash.
- Remedy
- 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.
78.3% repairedof 23 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA
or ask a dealer to check campaign 21V832000
Listed for 2021 Mercedes-Benz GLS450. Not checked against your VIN.
Rearview Camera Image May Not Display/FMVSS 111
Back over prevention · sensing system · camera
Official NHTSA text
- Summary
- 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."
- Consequence
- A backup camera that displays a blank image reduces the driver's rear view, increasing the risk of a crash or injury.
- Remedy
- 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.
96.5% repairedof 343,191 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA
or ask a dealer to check campaign 21V354000
Listed for 2021 Mercedes-Benz GLS450. Not checked against your VIN.
Inaccurate Vehicle Location for Emergency Services
Communication · auto crash notification
Official NHTSA text
- Summary
- 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.
- Consequence
- Failure of the eCall system may result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash.
- Remedy
- 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.
95.3% repairedof 1,292,258 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA
or ask a dealer to check campaign 21V058000
Listed for 2021 Mercedes-Benz GLS450. Not checked against your VIN.
Interior Switches May Not Illuminate/FMVSS 101
Electrical system · instrument cluster/panel
Official NHTSA text
- Summary
- 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."
- Consequence
- If the interior switches are not illuminated, they may be more difficult to find and operate, increasing the risk of a crash.
- Remedy
- 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.
94.7% repairedof 2,101 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA
or ask a dealer to check campaign 20V089000
PlainVIN shows public government records for education. It isn't a vehicle inspection or legal advice. Check your own VIN with NHTSA or your dealer.
Owner complaints (30)
30 complaints filed with NHTSA (owner reports, not verified findings). The electrical system is mentioned most often.
1involved a crash
2involved a fire
1injuries reported
0deaths reported
As reported by owners in their complaints. These are reports, not NHTSA findings.
Most-reported components
| Component | Complaints | % of 30 |
|---|---|---|
| Electrical system | 14 | 46.7% |
| Unknown or other | 8 | 26.7% |
| Engine | 3 | 10% |
| Lane departure | 3 | 10% |
| Forward collision avoidance | 2 | 6.7% |
| Seats | 2 | 6.7% |
| Fuel system | 1 | 3.3% |
| Power train | 1 | 3.3% |
| Seat belts | 1 | 3.3% |
| Structure | 1 | 3.3% |
How 2021 compares with other GLS450 years
Best and worst GLS450 years →| Model year | Complaints | Recall campaigns |
|---|---|---|
| 2017 | 35 | 8 |
| 2018 | 14 | 3 |
| 2019 | 24 | 3 |
| 2020 | 36 | 22 |
| 2021 | 30 | 12 |
This year (2021)Other yearsStill collecting reports
Counts are owner reports, not failure rates. Higher sales years tend to draw more reports. Owners are still filing reports for recent model years, so these counts will grow. Source: NHTSA ODI, retrieved Oct 6, 2026.
Looking at a 2021 GLS450 for sale?
Print a one-page buyer's checklist: each recall campaign with a box to tick when the seller shows proof of repair, the top complaint areas to inspect, crash stars, MPG, and a link back to this page.
Where to next
2021 Mercedes-Benz GLS450 FAQ
How many recalls does the 2021 Mercedes-Benz GLS450 have?
NHTSA lists 12 recall campaigns: 24V207000 (electrical), 24V118000 (power train), 23V445000 (fuel pump), 23V177000 (visibility), 22V732000 (seat), 22V680000 (structure), 22V365000 (electrical), 22V231000 (electrical), 21V832000 (visibility), 21V354000 (electrical), 21V058000 (electrical), 20V089000 (electrical). Use NHTSA's VIN lookup to see whether a specific car was repaired.
What are the most common 2021 Mercedes-Benz GLS450 problems?
Owners filed 30 complaints with NHTSA. Electrical system (14), Unknown or other (8), Engine (3) are mentioned most. These are owner reports, not verified findings.
How does the 2021 GLS450 compare with other years?
Among the 2017–2021 Mercedes-Benz GLS450 model years at least five years old, the 2018 drew the fewest complaints (14) and the 2020 the most (36). The 2021 drew 30. Counts are owner reports, not failure rates.
How this page was madeSources, processing, limits, review and changes
Data sources
- NHTSA recalls by vehicle
Retrieved Oct 6, 2026 - US DOT recall completion rates (data.transportation.gov)
Retrieved Oct 6, 2026 - NHTSA ODI owner complaints
Retrieved Oct 6, 2026 - NHTSA NCAP 5-Star Safety Ratings
Retrieved Oct 6, 2026 - EPA fuel economy data (licence confirmation pending)
Retrieved Oct 6, 2026 - EIA weekly retail gasoline prices
Weekly, all taxes included
Processing
- Complaints are counted per component. One complaint can list several, so component totals add up to more than the total.
- Fuel cost = miles per year ÷ EPA combined mpg × EIA weekly price for your region.
Limitations
- Complaint counts are owner reports, not verified findings or failure rates. There is no sales denominator.
- Recall campaigns are listed for the model year. Only NHTSA and the automaker know whether a specific car was repaired.
- Recent model years are still collecting reports.
Review
Data compiled automatically from the official files listed here.
Changelog
- 2026-10-06 Data refreshed from the official files.
Was this report useful?Report a data error