NHTSA (USA)Critical
At a glance
What can fail
The starter motor positive cable may not be properly installed, allowing power supply harness wires to chafe and potentially fail.
What the fix does
The 2020 Mercedes-Benz AMG GT63 has 6 recalls, the most serious involving a starter motor cable that may not be properly secured, allowing wiring to chafe and short circuit, which can stall the vehicle or start a fire.
Two recalls affect stability and chassis safety. The electronic stability control software may react incorrectly to driving conditions, meaning the system could fail to intervene or intervene at the wrong moment during a skid or loss of traction. On the structural side, the left-rear seatback latch may not be strong enough to hold under load, and in a crash, cargo shifting forward could force the seatback into the rear passenger area.
Two recalls involve the emergency communication system. The eCall system, which automatically contacts emergency responders after a crash, can transmit an inaccurate location, potentially sending help to the wrong place. These two filings describe the same underlying failure and are treated here as a single concern.
The remaining recall covers the wheel hub caps, which can detach from the wheels at speed and become a road hazard for other drivers or pedestrians nearby.
At a glance
What can fail
The starter motor positive cable may not be properly installed, allowing power supply harness wires to chafe and potentially fail.
What the fix does
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Dealers will inspect the cable connections and reposition the positive cable as needed to prevent wire damage.
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.
At a glance
What can fail
An electrical circuit in the Emergency Call System communication module may be damaged, causing the system to send an inaccurate vehicle location during an emergency call.
What the fix does
Dealers will replace the communication module at no cost to restore accurate location transmission.
Summarized — see the official notice for exact wording, dates, and contacts.