repaired · 2026 Q1
Electrical system: wiring
Risk. An overheated ground connection can increase the risk of a fire.
2021 Mercedes-Benz AMG GLS63Problems, recalls & complaints
NHTSA has logged 2 owner complaints about the 2021 Mercedes-Benz AMG GLS63, most often about the electrical system. It is covered by 10 safety recalls, and for recall 22V-732 the manufacturer reports only 80% of affected cars repaired.
Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through April 10, 2026. Updated daily.
Complaints by system
Where the 2021 Mercedes-Benz AMG GLS63 has problems
2 complaints grouped by the system owners reported.
1Electrical system
1Forward collision avoidance
| System | Complaints | Crash, fire or injury |
|---|---|---|
| Electrical system | 1 | 0 |
| Forward collision avoidance | 1 | 0 |
Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.
10 recalls
2021 Mercedes-Benz AMG GLS63 recalls and how many were fixed
Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.
repaired · 2025 Q2
Delivery: fuel pump
Risk. A loss of drive power can increase the risk of a crash.
repaired · 2025 Q1
Visibility: defroster/defogger/hvac system
Risk. Water intrusion into the foot wells may cause corrosion and/or short circuits to electrical components, increasing the risk of fire.
repaired · 2024 Q3
Seats: mid/rear assembly
Risk. A seat with a seatback lock failure may not properly restrain occupants, increasing the risk of injury during a crash.
Show 6 more recalls
repaired · 2024 Q3
Structure: body
Risk. Detached trim bars may cause a road hazard and increase the risk of a crash or injury.
repaired · 2026 Q2
Communication: auto crash notification
Risk. A disabled eCall system would prevent a vehicle occupant from contacting the emergency services call center in an emergency, potentially delaying emergency…
repaired · 2024 Q2
Wiring: interior/under dash
Risk. An overheated electrical cable can increase the risk of a fire.
repaired · 2023 Q4
Sensing system: camera
Risk. A backup camera that displays a blank image reduces the driver's rear view, increasing the risk of a crash or injury.
repaired · 2023 Q4
Communication: auto crash notification
Risk. Failure of the eCall system may result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash.
repaired · 2021 Q2
Electrical system: instrument cluster/panel
Risk. If the interior switches are not illuminated, they may be more difficult to find and operate, increasing the risk of a crash.
Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Mercedes-Benz.
Best & worst years
2021 vs. every other AMG GLS63 year
Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the AMG GLS63 median. How we score
'17'18'19'20'21'22'26
- Avoid
- Caution
- Solid
- Best
- Not rated
In owners' words
What AMG GLS63 owners report
Recent electrical system complaints filed with NHTSA, shortened. Personal details are removed.
48V battery has repeated failures where I'm driving. safety concern, When it fail, it will pop up warning1) only drive below 50 miles/hour; then it becomes2) stop vehicle immediately; then ) multi-media system suddenly shut off while I'm driving. I tested by 48V battery which only has below 60%…
Own a 2021 AMG GLS63?
Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.