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.
2018 Mercedes-Benz GLS 550Problems, recalls & complaints
NHTSA has logged 6 owner complaints about the 2018 Mercedes-Benz GLS 550, most often about the power train. It is covered by 3 safety recalls, and for recall 17V-816 the manufacturer reports only 93% of affected cars repaired.
Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through July 6, 2026. Updated daily.
Complaints by system
Where the 2018 Mercedes-Benz GLS 550 has problems
6 complaints grouped by the system owners reported.
1Power train
1Seat belts
1Electrical system
1Suspension
1Visibility/wiper
1Service brakes, air
| System | Complaints | Crash, fire or injury |
|---|---|---|
| Power train | 1 | 0 |
| Seat belts | 1 | 0 |
| Electrical system | 1 | 0 |
| Suspension | 1 | 0 |
| Visibility/wiper | 1 | 0 |
| Service brakes, air | 1 | 0 |
Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.
3 recalls
2018 Mercedes-Benz GLS 550 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 · 2019 Q4
Service brakes, hydraulic
Risk. Reduced braking performance can increase the risk of a crash.
repaired · 2019 Q2
Doors: latch
Risk. If the door appears to be locked, the door may be unintentionally opened, increasing the risk of injury.
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
2018 vs. every other GLS 550 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 GLS 550 median. How we score
'17'18'19
- Avoid
- Caution
- Solid
- Best
- Not rated
In owners' words
What GLS 550 owners report
Recent power train complaints filed with NHTSA, shortened. Personal details are removed.
WHILE IN MOTION ON A HIGHWAY IN STOP AND GO TRAFFIC, CAR SHIFTED ITSELF FROM DRIVE TO NEUTRAL WITHOUT ANY DRIVER INPUT. ALL INDICATOR LIGHTS ON DASH TURNED ON. DRIVER UNABLE TO SHIFT FROM NEUTRAL BACK TO DRIVE TO REGAIN CONTROL OF VEHICLE. DRIVER COULD ONLY SHIFT TO PARK. DRIVER SHIFTED VEHICLE TO…
Own a 2018 GLS 550?
Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.