2021 Mercedes-Benz GLC 300

● Typical for this model
2021 Mercedes-Benz GLC 300
RENDERED 2026-11-01T12:57:37.468Z

This year's complaint volume is within 30% of this model's typical year.

This verdict reflects complaint volume compared to this model's typical year. Recalls and safety issues below apply regardless of the verdict — always check them.

Complaints
66
Recalls
9

Campaigns on file for 2021

Investigations
0

None on file

Top problem
Engine

44% of complaints

Complaints per year

2018: 87 complaints 2018 2019: 46 complaints 2020: 69 complaints 2021: 66 complaints 2021 66 2022: 60 complaints 2023: 55 complaints 2024: 21 complaints 2024 2025: 15 complaints 2026: 1 complaint 2026
2018: 87 complaints 2018 2019: 46 complaints 2019 2020: 69 complaints 2020 2021: 66 complaints 2021 66 2022: 60 complaints 2022 2023: 55 complaints 2023 2024: 21 complaints 2024 2025: 15 complaints 2025 2026: 1 complaint 2026
2018: 87 complaints 2018 2019: 46 complaints 2019 2020: 69 complaints 2020 2021: 66 complaints 2021 66 2022: 60 complaints 2022 2023: 55 complaints 2023 2024: 21 complaints 2024 2025: 15 complaints 2025 2026: 1 complaint 2026

2021: 66 complaints

View as data table
YearComplaints
201887
201946
202069
202166
202260
202355
202421
202515
20261

Known problem areas

Percentages can add to more than 100% — a complaint can name more than one system.

Engine

44% · 29 reports
CRASH
Show complaint excerpts

The contact owns a 2021 Mercedes Benz GLC 300. The contact stated that while driving at various speeds, the vehicle would lose power and fail to accelerate upon the depression of the accelerator pedal.

NHTSA ODI report, 2024-08-07

The contact owns a 2021 Mercedes Benz GLC300. The contact stated while driving approximately 65 MPH, the vehicle lost motive power and failed to accelerate properly while depressing the accelerator pedal.

NHTSA ODI report, 2023-09-11

I have purchased the 2021 Mercedes-Benz GLC 300 4MATIC Coupe and noticed a design flaw on the car. As you can see in the attached picture, the front bumper provides no protection to the radiator.

NHTSA ODI report, 2021-03-08

Also filed under Structure

Exterior lighting

20% · 13 reports

Fuel/propulsion system

14% · 9 reports

Electrical system

12% · 8 reports

Forward collision avoidance

6% · 4 reports

Most commonly citing automatic emergency braking and adaptive cruise control.

Safety timeline

9 recalls · 0 investigations · oldest first

To check one car, enter its VIN on the NHTSA recall page. Check a VIN →

  1. R
    2021-03-12Communication, electrical system21V058000 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.

    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.

  2. R
    2021-03-31Communication21V072000 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,...

    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.

  3. R
    2021-05-21Air bags, seat belts, seats21V230000 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.

    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.

  4. R
    2021-06-28Back over prevention, electrical system21V354000 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.

    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.

  5. R
    2021-09-03Air bags21V527000 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.

    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.

  6. R
    2022-06-03Exterior lighting22V261000 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.

    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.

  7. R
    2022-07-08Communication, electrical system22V365000 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.

    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.

  8. R
    2023-09-29Fuel system, gasoline23V445000 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.

    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.

  9. R
    2024-02-23Exterior lighting24V070000 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.

    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.

Buy-smart checklist

2021 Mercedes-Benz GLC 300 — pre-purchase inspection

Inspect

  • Engine: 29 reports on file for this year.
  • Exterior lighting: 13 reports on file for this year.
  • Fuel/propulsion system: 9 reports on file for this year.

Verify these recalls were completed

  • Recall 21V058000 · Communication, electrical system
  • Recall 21V072000 · Communication
  • Recall 21V230000 · Air bags, seat belts, seats
  • Recall 21V354000 · Back over prevention, electrical system
  • Recall 21V527000 · Air bags
  • Recall 22V261000 · Exterior lighting
  • Recall 22V365000 · Communication, electrical system
  • Recall 23V445000 · Fuel system, gasoline
  • Recall 24V070000 · Exterior lighting

Other years of this model

See all years ranked →

Worst years1 year

FAQ

Is the 2021 Mercedes-Benz GLC 300 reliable?
Based on NHTSA complaint volume compared to this model's typical year, the 2021 Mercedes-Benz GLC 300 is rated "typical".
What are the most common problems with the 2021 Mercedes-Benz GLC 300?
The most-reported component is engine, accounting for 44% of complaints on file.
How many recalls does the 2021 Mercedes-Benz GLC 300 have?
9 recalls on file for this model year.

Data updated 2026-11-01 · Complaints are unverified owner reports filed with NHTSA, not independently verified defects. Methodology.