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.
What the fix does
The 2020 Mercedes-Benz G 550 has 8 recalls, the most serious involving rear doors that can appear fully closed but are not latched, allowing them to swing open while driving.
The rear door latch issue appears across two recalls: one covering the original latch and a second covering replacement latches installed during prior service visits, meaning vehicles that already had the first repair may still be affected. On the electrical side, the front axle wiring harness can chafe against an oil cooler and wear through, causing the anti-lock brakes and electronic stability control to drop out, and a separate filing describes stability control and anti-lock brake deactivation as well. Loose side crash sensor connectors can delay airbag and seatbelt activation in a side impact, reducing protection when it is needed most. There is also a labeling concern: the embossed child safety lock symbol on the rear doors may show the wrong lock status, which could allow a child to open the door unexpectedly. Two recalls cover the automatic emergency call system, which can either fail entirely or send responders to the wrong location after a crash.
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.
What the fix does
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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
The side crash sensor connectors may loosen, potentially delaying airbag and seatbelt activation during a side impact crash.
What the fix does
Dealers will inspect and replace the side impact crash sensors as needed, at no charge.
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.