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.
The worst 2026 Mercedes-Benz AMG Gls63 problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Engine1
- Transmission1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Engine1
- Transmission1
Recalls
No recalls on record for this model year.
Technical service bulletins for the 2026 Mercedes-Benz AMG Gls63 96
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Customers may notice a check engine light in the instrument cluster and may also complain of rough running
- Issue On certain subject vehicles, the transmission control unit (VGS) does not conform to current...
- Harsh upshifts, downshifts, or jolting in lower gears when accelerating
- Customer concern of Air Conditioning not cooling
- Customer states that the yellow "Coolant" message is populated in the instrument cluster
- Subject vehicles were visible and flagged in VMI as “OPEN” under campaign 2026080002 in Netstar-VMI on...
- Issue A software update will be performed that provides enhancements to the robustness and system...
- Slight creaking noises when steering
- Power train
- Repeat workshop visit for vehicle vibration while braking from 60MPH. NOTE: Although the symptom is...
What 2026 Mercedes-Benz AMG Gls63 owners say
Most recent owner complaints, unedited.
Compare the 2026 Mercedes-Benz AMG Gls63
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Questions about the 2026 Mercedes-Benz AMG Gls63
Is the 2026 Mercedes-Benz AMG Gls63 reliable?
Owners have filed 1 complaint about the 2026 Mercedes-Benz AMG Gls63, fewer than a typical AMG Gls63 model year.
What is the most common problem with the 2026 Mercedes-Benz AMG Gls63?
Engine and cooling, with 1 complaint. Next is transmission (1).
How many recalls does the 2026 Mercedes-Benz AMG Gls63 have?
No recalls on record.
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