Recalls (9)
NHTSA lists 9 recall campaigns for the 2021 Mercedes-Benz GLC 300. 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 GLC 300. Not checked against your VIN.
Headlights Aim Cover Missing/FMVSS 108
Exterior lighting · headlights
Official NHTSA text
- Summary
- Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2019-2022 GLC 300, 2020 GLC 350e, and 2020-2022 AMG GLC 43 vehicles. The headlights may be incorrectly adjusted too high and create a glare for oncoming traffic. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."
- Consequence
- Incorrectly aimed headlights can reduce the visibility of oncoming traffic, increasing the risk of a crash.
- Remedy
- Dealers will inspect the headlight adjustment and correct it if necessary, free of charge. Owner notification letters were mailed February 23, 2024. Owners may contact MBUSA customer service at 1-800-367-6372.
81.1% repairedof 15,502 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 24V070000
Listed for 2021 Mercedes-Benz GLC 300. 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 GLC 300. 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 GLC 300. Not checked against your VIN.
Headlight Failure
Exterior lighting · headlights
Official NHTSA text
- Summary
- Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021 GLC 300, GLC 300 4Matic, AMG GLC 63 4Matic, AMG GLC 63 S 4Matic, and AMG GLC 43 4Matic vehicles. The electrical connection for the headlights may not be watertight, which can result in headlight failure.
- Consequence
- Headlight failure can decrease visibility for both the driver and surrounding traffic, increasing the risk of a crash.
- Remedy
- Dealers will inspect and replace the headlight sealing plugs, as necessary, free of charge. Owner notification letters were mailed June 3, 2022. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2022050005.
98.5% repairedof 129 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 22V261000
Listed for 2021 Mercedes-Benz GLC 300. Not checked against your VIN.
Side Impact Crash Sensor Connectors May Loosen
Air bags · sensor · side impact
Official NHTSA text
- Summary
- Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021 CLS450, AMG E53, AMG CLS53, E350, E450, AMG GT43, AMG GT53, 2020 S450, S560, G550, AMG GLC63, 2020-2021 GLC300, and AMG G63 vehicles. The side crash sensor connectors may come loose, which could delay the activation of air bags and seatbelts during a side impact crash.
- Consequence
- Air bags and seatbelts that don't function as intended can increase the risk of injury during a crash.
- Remedy
- Dealers will inspect and replace as necessary, the side impact crash sensors, 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 2021070032/33.
94.7% repairedof 542 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 21V527000
Listed for 2021 Mercedes-Benz GLC 300. 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 GLC 300. Not checked against your VIN.
Faulty Front Seat Position Switch
Air bags · sensor · occupant classification
Official NHTSA text
- Summary
- Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021 C-Class, E-Class, E-Class Coupe and Convertible, GLC, CLS, AMG GT 4-door Coupe and G-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details. A faulty electrical contact within the seat position switch may prevent the driver and passenger air bags and seat belt force limiters from properly activating during a crash.
- Consequence
- Air bags and seat belts that do not perform properly in a crash can increase the risk of injury.
- Remedy
- MBUSA will notify owners, and dealers will replace the seat position switches, free of charge. Owner letters were mailed May 21, 2021. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2021040016.
97.8% repairedof 8,634 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 21V230000
Listed for 2021 Mercedes-Benz GLC 300. Not checked against your VIN.
Emergency Call (eCall) Function May be Disabled
Communication
Official NHTSA text
- Summary
- Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2019 C300, E300, 2018-2020 CLA250, 2020 CLS450, AMG E53, AMG GT53, GLE450, 2018 AMG E63, AMG GTA, 2017-2020 GLA250, GLC300, 2019 GLC350, AMG GLC43, 2017-2018 GLE350, 2019 AMG GLC 43, GLC350, GLE400, 2017 GLS450, S550, C300 Cabrio, and 2018-2019 S560 vehicles. On June 18, 2021, an additional 9 vehicles were added, including certain 2021 GLA250, GLC300, 2018 S450, E400, and 2017 CLA250 vehicles. The communication module might have been inadvertently deactivated during a service visit, which could have disabled the Emergency Call (eCall) function.
- Consequence
- A disabled eCall system would prevent a vehicle occupant from contacting emergency services through the call center in an emergency, potentially delaying emergency responders and increasing the risk of injury.
- Remedy
- MBUSA will notify owners, and dealers will inspect the communication module and activate it, if necessary, free of charge. The recall began March 31, 2021. Letters for the owners of the 9 additional vehicles were mailed July 9, 2021. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2021030005.
86.6% repairedof 67 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 21V072000
Listed for 2021 Mercedes-Benz GLC 300. 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
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 (66)
66 complaints filed with NHTSA (owner reports, not verified findings). The engine is mentioned most often.
1involved a crash
2involved a fire
0injuries reported
0deaths reported
As reported by owners in their complaints. These are reports, not NHTSA findings.
Most-reported components
| Component | Complaints | % of 66 |
|---|---|---|
| Engine | 30 | 45.5% |
| Exterior lighting | 13 | 19.7% |
| Fuel/propulsion system | 10 | 15.2% |
| Electrical system | 8 | 12.1% |
| Unknown or other | 7 | 10.6% |
| Power train | 4 | 6.1% |
| Back over prevention | 3 | 4.5% |
| Forward collision avoidance | 3 | 4.5% |
| Structure | 3 | 4.5% |
| Visibility/wiper | 3 | 4.5% |
How 2021 compares with other GLC 300 years
Best and worst GLC 300 years →201798
201887
201947
202069
202166
202260
202355
202421
202516
20261
| Model year | Complaints | Recall campaigns |
|---|---|---|
| 2017 | 98 | 12 |
| 2018 | 87 | 12 |
| 2019 | 47 | 12 |
| 2020 | 69 | 16 |
| 2021 | 66 | 9 |
| 2022 | 60 | 2 |
| 2023 | 55 | 12 |
| 2024 | 21 | 8 |
| 2025 | 16 | 3 |
| 2026 | 1 | 3 |
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.
Fuel economy: up to 25 mpg combined
25
mpg combined
22
city
29
highway
- EPA annual fuel cost
- $3,300
- CO₂ tailpipe
- 360 g/mi
- EPA class
- Small Sport Utility Vehicle
What it costs you to run
$2,612per year
$218per month
600gallons a year
Miles ÷ 25 mpg × $4.354 (EIA US average regular, week of Oct 5, 2026, all taxes included). Source: EPA · EIA.
EPA label estimates from lab tests; your mileage will vary.
Specs by configuration
| Engine · transmission | Drive | City / Hwy / Comb | EPA $/yr | CO₂ g/mi |
|---|---|---|---|---|
| 2 L 4-cyl · 9-speed automatic | Rear-Wheel Drive | 22 / 29 / 25 | $3,300 | 360 |
Source: EPA fuel economy data, retrieved Oct 6, 2026. Configurations are listed when EPA and NHTSA records match.
Looking at a 2021 GLC 300 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 GLC 300 FAQ
How many recalls does the 2021 Mercedes-Benz GLC 300 have?
NHTSA lists 9 recall campaigns: 24V070000 (lighting), 23V445000 (fuel pump), 22V365000 (electrical), 22V261000 (lighting), 21V527000 (air bag), 21V354000 (electrical), 21V230000 (air bag), 21V072000 (communication), 21V058000 (electrical). Use NHTSA's VIN lookup to see whether a specific car was repaired.
What are the most common 2021 Mercedes-Benz GLC 300 problems?
Owners filed 66 complaints with NHTSA. Engine (30), Exterior lighting (13), Fuel/propulsion system (10) are mentioned most. These are owner reports, not verified findings.
What mpg does the 2021 Mercedes-Benz GLC 300 get?
EPA rates the 2 L 4-cyl · 9-speed automatic version at 22 city, 29 highway and 25 combined mpg.
How does the 2021 GLC 300 compare with other years?
Among the 2017–2021 Mercedes-Benz GLC 300 model years at least five years old, the 2019 drew the fewest complaints (47) and the 2017 the most (98). The 2021 drew 66. 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.
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