NHTSA (USA)High Risk
At a glance
What can fail
The right-side rear door latch may have faulty components that prevent the rear doors from latching or opening properly.
The 2019 Mercedes-Benz G 550 has 12 recalls, the most serious being two separate fuel leak risks: a fuel tank that may not have been properly welded and a fuel injector that can leak near hot engine or exhaust components, both of which raise the risk of fire.
A software defect can cause the engine to stall unexpectedly, raising crash risk. On the door and wiring side, the front door wiring harness can be damaged by repeated opening and closing, potentially disabling the side impact airbags, automatic door unlocking in a crash, or the vehicle's location tracking. A separate wiring harness near the front axle can chafe against an oil cooler and cause both the anti-lock brakes and electronic stability control to stop working. Two related recalls cover the rear door latches: the door can appear fully closed while the latch is not engaged, allowing it to swing open while driving. Prior repair attempts did not fully resolve the issue for some vehicles. There is also a recall where the seatbelt pretensioners and the pre-crash tensioning system may not activate in a collision. The embossed child safety lock symbol on rear doors may show the wrong status, and the automatic emergency call system can either fail entirely or report the wrong location to emergency responders.
At a glance
What can fail
The right-side rear door latch may have faulty components that prevent the rear doors from latching or opening properly.
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What the fix does
Dealers will replace the right-side rear door latches at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The front axle wiring harness can rub against the oil cooler and get damaged, which may disable your anti-lock brakes and electronic stability control.
What the fix does
Dealers will inspect the harness and install a protective sleeve or replace it if needed, at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
A software error in the communication module's SIM card can prevent mobile network connection, which disables the emergency call (eCall) system.
What the fix does
The communication module software will be updated at no cost through an over-the-air update or by a dealer.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
Manufacturing debris may be trapped between the fuel rail and injectors, potentially causing fuel to leak.
What the fix does
Dealers will replace the fuel rail and fuel injectors at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The fuel tank may not have been welded correctly during manufacturing, which could allow fuel to leak.
What the fix does
The dealer will replace the fuel tank at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
Parts inside the rear door latches may fail, preventing the rear doors from latching shut or opening properly.
What the fix does
Dealers will replace the rear door latches at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The communication module software may fail to send your vehicle's correct location to emergency services when the eCall system activates during a crash.
What the fix does
A dealer will update the communication module software, or the update will be sent over-the-air, at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The embossed lock symbol on the rear door child safety locks may display incorrect information about whether the lock is engaged or disengaged.
What the fix does
Dealers will install a label on the rear doors showing the correct lock operating direction at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
An electrical resistor in the differential locking module can fail, breaking communication between the control unit and actuator. This may disable the Electronic Stability Program and Anti-lock Brake System while driving.
What the fix does
Dealers will inspect the differential locking modules and replace them as needed at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The front door wiring harnesses may be routed incorrectly, causing individual wires to get damaged when the front doors open and close.
What the fix does
Dealers will inspect the front door wiring harnesses, modify or replace them if damaged, at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The front seat belt buckles may be incorrectly detected as unfastened even when properly fastened, which can disable the PRE-SAFE® function and pretensioner.
What the fix does
Dealers will inspect and replace front seat belt buckles as needed at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The Central Powertrain Controller can reset unexpectedly while driving, which may cause the engine to stall.
What the fix does
Dealers will update the CPC control unit software at no cost to restore proper operation.
Summarized — see the official notice for exact wording, dates, and contacts.