2021 Mercedes-Benz G 550 problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
5 owner complaints analyzed
7 distinct recall campaigns
Not available median reported failure mileage
Scope: 2021 model year. Data snapshot: . 0 complaints include usable failure mileage.
This selection has limited data. It remains available for lookup but is excluded from search indexing.
Most common problems
Electrical System is the most frequently named component, appearing in 3 of 5 complaints (60.0%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Steering behavior | 2 | 40.0% |
| Engine operation | 1 | 20.0% |
| Braking behavior | 1 | 20.0% |
| Electrical and battery issues | 1 | 20.0% |
| Fuel system concerns | 1 | 20.0% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Electrical System | 3 |
| Engine | 3 |
| Forward Collision Avoidance: Warnings | 1 |
| Fuel/Propulsion System | 1 |
| Service Brakes | 1 |
| Suspension | 1 |
| Vehicle Speed Control | 1 |
Electrical System: 3; Engine: 3; Forward Collision Avoidance: Warnings: 1; Fuel/Propulsion System: 1; Service Brakes: 1; Suspension: 1; Vehicle Speed Control: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 0 |
| 25,000 to 49,999 | 0 |
| 50,000 to 74,999 | 0 |
| 75,000 to 99,999 | 0 |
| 100,000 to 149,999 | 0 |
| 150,000 and above | 0 |
Under 25,000: 0; 25,000 to 49,999: 0; 50,000 to 74,999: 0; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 0
No usable failure mileage is recorded. 5 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 2 |
2021: 1; 2022: 1; 2023: 1; 2024: 2
Pattern summary
Electrical System leads the component reports. Steering behavior appears in 2 complaint narratives. Engine operation appears in 1 complaint narratives. Braking behavior appears in 1 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 11421207 · 2021-06-16 (June 16, 2021)
While pulling away from a red light, the vehicle jolted a small amount, then it shut down, only providing power to the dashboard, which produced an array of safety warnings. Power steering and throttle were completely dead leaving me powerless in traffic. I pulled to the shoulder of the road, placed the vehicle in park (as it seems that the failure put the car into neutral). I was able to restart the vehicle and continue driving home with no warning lights or issues. (Several other owners are having this same issue-I found them by googling …
Owner-reported narrative. Look up ODI 11421207 at NHTSA ↗
Owner report 11485579 · 2022-09-21 (September 21, 2022)
Driving 2021 Mercedes-Benz G-550 for approximately 8min. Preceding East on a 3 lane South Florida Highway no more than 40 mph. Gas tank 75% full with V-Power From Shell. (filled-3 days prior). Proceeded from the middle lane to the right lane in-order to make a sharp right handed turn onto up coming Shopping Center, that was two lights away. I had turned on my 21 MB G550 air conditioner to auto (off prior). While I was attempting to switch on my turn signal the car suddenly turns-off completely in mid-drive. All warning lights illuminated, steer…
Owner-reported narrative. Look up ODI 11485579 at NHTSA ↗
Owner report 11592609 · 2024-06-05 (June 5, 2024)
Shortly after purchasing a new Mercedes Benz 2021 G550 on [XXX], the SUV started having electrical problems. During early 2022 the vehicle shut off while at a red light and would not restart until a few minutes later. No warning light or error message was seen and when taken to the dealership they could not find anything wrong. Several months later the vehicle stopped/stalled almost causing an accident on the highway. This time the dealership did find something wrong and repaired or replaced it. Not sure exactly what it was but they mentioned s…
Owner-reported narrative. Look up ODI 11592609 at NHTSA ↗
Owner report 11566025 · 2024-01-17 (January 17, 2024)
The brakes locked up in the vehicle and computer system nearly causing deadly accident.
Owner-reported narrative. Look up ODI 11566025 at NHTSA ↗