NHTSA (USA)Critical
At a glance
The 2020 Mercedes-Benz AMG GT53 has 7 recalls, the most serious being a transmission wiring harness defect that can cause an electrical short circuit and raise the risk of a vehicle fire.
The wiring issue stems from two related problems: in some vehicles the harness was misrouted during production, exposing the electrical connector to corrosion, while in others the harness connection was made incorrectly during a prior recall repair. Both conditions can lead to the same short circuit and fire risk, so if a repair was previously performed on your vehicle, it may not have fully resolved the underlying concern.
On the safety systems side, the electronic stability control software on some vehicles may react inaccurately to driving situations, meaning the system could either intervene when it should not or fail to intervene when it should, increasing crash risk. The left-rear seatback latch may not be strong enough to hold up when cargo strikes it from behind, so in a crash the seatback can fold forward and injure rear passengers or those in front of them.
Two recalls affect the vehicle's emergency communication system. In one, the automatic crash notification system may be disabled entirely, preventing occupants from reaching emergency services after a collision. In the other, the system may send responders to the wrong location, delaying help when it is needed most.
Rounding out the list, the wheel hub caps on certain vehicles can detach while the car is moving and become a hazard for other drivers and pedestrians on the road.
At a glance
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What can fail
The transmission wiring harness connection may not have been correctly wired during production or a prior recall repair, exposing the electrical connector to corrosion and potentially causing an electrical short-circuit.
What the fix does
Dealers will replace the two-part wiring harness and connector at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The transmission wiring harness may be routed incorrectly, exposing the electrical connector to corrosion and causing an electrical short-circuit.
What the fix does
Dealers will inspect and repair the connector, reroute the harness, and install an additional bracket at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The communication module may have been turned off during service, disabling the Emergency Call function that connects your vehicle to emergency services.
What the fix does
Dealers will inspect the communication module and reactivate 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
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 wheel-hub caps may detach while driving.
What the fix does
Dealers will replace the wheel-hub caps at no charge.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The Electronic Stability Program (ESP) software may be incorrect, causing the ESP system to respond inaccurately.
What the fix does
Dealers will update the ESP software at no charge to restore proper system function.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The left-rear seatback latch may be too weak to hold under load. If cargo strikes the seatback, the latch could fail and the seat could unlatch.
What the fix does
Dealers will replace the left-rear seatback latch at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.