2017 Mercedes-Benz G550 problems, complaints & recalls
Most-reported problem areas: Engine (1)
Safety recalls (3)
Communication: Auto Crash Notification 2021-02-05 · campaign 21V058000 · 1,292,258 vehicles
Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2016 - 2021 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, GT-Class, C-Class, E-Class, S-Class, CLS-Class, SL-Class, B-Class, GLB-Class, GLC-Class, and G-Class vehicles. Please refer to the Part 573 report for specific vehicle model details. The software design of the communication module may fail to communicate the correct vehicle location for the emergency call system (eCall) in the event of a crash.
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.
Fix: MBUSA will notify owners, and the communication module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. The recall began March 12, 2021. Owners may contact MBUSA customer service at 1-877-762-8267. MBUSA's number for this recall is 2021020025.
Service Brakes, Hydraulic:power Assist:vacuum:hoses, Lines/Piping, And Fittings 2017-12-18 · campaign 17V817000 · 432 vehicles
Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain model year 2017 Mercedes G550 & G550 4x4 Squared vehicles. The vacuum hose for the brake booster may collapse resulting in increased braking effort.
Risk: Increased braking effort may increase the risk of a crash.
Fix: MBUSA will notify owners, and dealers will replace the vacuum hose, as necessary, free of charge. Parts are not currently available. Owners will be notified of the recall in January 2018 and they will receive a second letter when the parts become available, currently expected to be in March 2018. Owners may contact MBUSA customer service at 1-877-496-3691. MBUSA's number for this recall is 2018020010.
Forward Collision Avoidance: Adaptive Cruise Control 2017-11-14 · campaign 17V713000 · 8,043 vehicles
Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2016-2017 G550 4Matic, G63 AMG, and G65 AMG vehicles. A malfunction of the Electronic Stability Program (ESP), while Distronic Plus is engaged, may cause the engine to not reduce power, regardless of the vehicle's speed, driving situation or brake application.
Risk: Increased braking effort and/or shifting to neutral would be needed to stop the vehicle, lengthening the distance needed to stop the vehicle and increasing the risk of a crash.
Fix: MBUSA will notify owners, and dealers will reprogram the ESP control unit software, free of charge. The recall began on December 6, 2017. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2017110012.
Service bulletins (95)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Service Brakes 2026-09-22 · LI42.10-P-078779 · Service Bulletin/Repair Instructions
complaint repeat workshop visit for vehicle vibration while braking from 60mph. note: although the symptom is similar to a tire or wheel vibration, it is usually readily noticeable that it is distinctly different if it happens at all times or only while braking. cause although the cause of the vibra
Structure:body 2026-09-14 · LI82.62-P-078631 · Service Bulletin/Repair Instructions
complaint clanking noise from the area of the speakers in the doors. cause under analysis. remedy to narrow down the cause, first of all remove the door trim. • if the noise continues to occur even with the door trim removed, then continue the diagnosis working towards the speaker and if necessary,
Forward Collision Avoidance: Warnings 2026-08-26 · LI54.70-P-080191 · Service Bulletin/Repair Instructions
complaint consistently reproducible erroneous parktronic warnings from front with every key cycle. cause the parking sensors are detecting the front brush guard. remedy complaint must be consistently reproducible and can occur multiple times a key cycle without obvious cause. note: the parking syste
Engine 2026-08-12 · LI01.20-P-080884 · Service Bulletin/Repair Instructions
complaint oil leaks found on m176 or m177 engines diagnosed to be from the cylinder head cover area cause unknown (under investigation) remedy if oil leaks are found at left or right cylinder head cover area please collect the following information and open tips case. 1. collect photos of the leak 2
Electrical System 2026-08-12 · LI54.65-P-080132 · Service Bulletin/Repair Instructions
complaint 1. general diagnostic tips 2. one or more park sensor activations 3. red ring around vehicle 4. "active parking and parking assist inoperative" on instrument cluster 5. cameras 6. other park topics. cause various root causes remedy see attached diagnostic guide.
Electrical System 2026-08-06 · LI82.85-P-079087 · Service Bulletin/Repair Instructions
complaint a popup is seen on the hu with the message "data connection temporarily not available". potentially affected functionalities in ntg4.5, ntg5 1.weather 2.local search 3.ip radio 4.send2car 5.speech detection service 6.navigation 7.iheartradio 8.traffic cams cause mb apps is sundowned for al
Showing the 6 most recent of 95 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-10-27 · Engine“my 2017 g550 misfired on a highway and i had total failure with kids in the backseat creating an immediate life-safety hazard. this issue was caused by the m176 engine, which is known to create misfires. mercedes tried to blame it on me not changing my spark plus, but i showed proof they were changed with a certified mercedes mechanic. g wagons wit…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.