The 2021 Mercedes-Benz AMG GT53 has 8 recalls, the most serious involving wiring that can overheat or short-circuit and raise the risk of an engine compartment fire.
Three separate wiring issues affect this vehicle. A 48-volt ground cable in the engine compartment may not be tightened properly and can overheat. The transmission wiring harness may also be misrouted, exposing an electrical connector to corrosion and causing a short-circuit. A prior recall repair on the transmission wiring harness connection may itself have been done incorrectly, creating a further short-circuit risk. On the occupant safety side, side crash sensor connectors can come loose and delay airbag and seatbelt activation in a side-impact collision. There is also a seatbelt pretensioner concern, where belts may not perform correctly in a crash. The rear seatbelt retractors may deactivate early, preventing a child safety seat from being held securely. Two lower-severity recalls round out the list: the backup camera display can go black or reboot on startup, reducing rear visibility while reversing, and the automatic crash notification system may send emergency responders to the wrong location after a collision.
At a glance
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.
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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 48-volt ground cable connection in the engine compartment may not be properly tightened, causing the cable to overheat.
What the fix does
Dealers will inspect the 48-volt ground cable connection and repair it 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 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 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
The rear seat belt automatic locking retractors may stop working too early, preventing child car seats from securing properly.
What the fix does
Dealers will inspect and replace the rear seat belt assemblies as needed at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The MBUX multimedia system software may cause the display to go black or restart after startup, preventing the rearview camera image from displaying properly.
What the fix does
A dealer will update the multimedia system software, or you can receive the update over-the-air, at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
A faulty electrical contact in the seat position switch may prevent driver and passenger air bags and seat belt force limiters from activating during a crash.
What the fix does
Dealers will replace the seat position switches at no cost.
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.
