Home · 2026 Mercedes-benz AMG Gls63 · Complaints

What 1 owners told NHTSA about the 2026 Mercedes-benz AMG Gls63

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (1)Engine (1)Transmission & drivetrain (1)

1 of 1 complaints match · Transmission & drivetrain · clear filters

Dec 5, 2025Transmission & drivetrainEngine

My vehicle has violently jolted 10+ times while driving at low speeds (15–30 mph) in all drive modes. The jolting is severe enough to feel like being rear-ended and poses an immediate safety hazard. The check engine light came on during one incident. My dealership told me they cannot diagnose or repair the vehicle because they do not yet have software for 2026 Mercedes models, leaving the vehicle unrepairable and unsafe to operate. I no longer feel safe driving this vehicle and am requesting investigation and manufacturer action.

NHTSA ODI 11703355

Working with the data? Download all 1 complaints as CSV · fetched from NHTSA July 18, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2026 Mercedes-benz AMG Gls63 verdict →