2027 Mercedes-Benz GLS 450 4MATICProblems, recalls & complaints
NHTSA has logged 1 owner complaint about the 2027 Mercedes-Benz GLS 450 4MATIC, most often about the engine. It has no vehicle safety recalls on record.
Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through October 26, 2026. Updated daily.
Where the 2027 Mercedes-Benz GLS 450 4MATIC has problems
1 complaint grouped by the system owners reported.
| System | Complaints | Crash, fire or injury |
|---|---|---|
| Engine | 1 | 0 |
Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.
2027 Mercedes-Benz GLS 450 4MATIC recalls and how many were fixed
No vehicle safety recalls are on record for this model year.
2027 vs. every other GLS 450 4MATIC 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 450 4MATIC median. How we score
- Avoid
- Caution
- Solid
- Best
- Not rated
What GLS 450 4MATIC owners report
Recent engine complaints filed with NHTSA, shortened. Personal details are removed.
Engine oil specification and quantity is not provided. New vehicles did not come with a printed owners manual, and the online manual (July 2026 and Jan 2027 versions) do not specify what oil type to put in the vehicle. It is nowhere to be found in the owners documentation - at risk of putting the…
Own a 2027 GLS 450 4MATIC?
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