2023 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated September 2026
2023 · All trims · All engines
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According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2023 Mercedes-Benz AMG GT has 4 documented known issues, with 4 rated critical. The most serious are High-Voltage Starter-Alternator Control Unit Software Fault Causes Loss of Drive Power (GT 63 S E Performance Plug-In Hybrid), Fuel Pump Impeller Deformation Causes Engine Shutdown and Failure to Restart, 48-Volt EQ Boost System: Loose Ground Cable (Fire Recall) and 48V Battery / Starter-Generator Failure Causing No-Start ($900-$3,500 repair) and Misrouted Transmission Wiring Harness Connector Corrodes and Short-Circuits (Fire Risk, Recall Repeated After Failed First Remedy). Across all issues with published estimates, repair costs range from $900 to $3,500. DIY maintenance guides at au7o.io.
ELECTRONIC STABILITY CONTROL (ESC)
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021 AMG GT Black Series vehicles. The wiring harness for the front wheel speed sensor may be the incorrect length, which could result in damage to the harness during certain driving conditions.
ELECTRICAL SYSTEM:SOFTWARE
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2022 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, AMG GT-Class, C-Class, E-Class, S-Class, SL-Class, GLC-Class, CLS-Class, GLB-Class, and G-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details. An error in the communication module's SIM card software can cause a mobile network connection failure, disabling the emergency call (eCall) system.
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According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2023 Mercedes-Benz AMG GT has 4 documented issues. The most frequently reported are: High-Voltage Starter-Alternator Control Unit Software Fault Causes Loss of Drive Power (GT 63 S E Performance Plug-In Hybrid), Fuel Pump Impeller Deformation Causes Engine Shutdown and Failure to Restart, 48-Volt EQ Boost System: Loose Ground Cable (Fire Recall) and 48V Battery / Starter-Generator Failure Causing No-Start. Of these, 4 are rated critical and should be addressed promptly.
The 2023 Mercedes-Benz AMG GT has 4 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 4 issues are rated critical: High-Voltage Starter-Alternator Control Unit Software Fault Causes Loss of Drive Power (GT 63 S E Performance Plug-In Hybrid) and Fuel Pump Impeller Deformation Causes Engine Shutdown and Failure to Restart and 48-Volt EQ Boost System: Loose Ground Cable (Fire Recall) and 48V Battery / Starter-Generator Failure Causing No-Start and Misrouted Transmission Wiring Harness Connector Corrodes and Short-Circuits (Fire Risk, Recall Repeated After Failed First Remedy). Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
Repair costs for known Mercedes-Benz AMG GT issues range from $900 to $3,500, depending on the specific problem and whether you choose DIY or professional repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
The AMG GT 63 S E Performance is a plug-in hybrid and is a fundamentally different electrical architecture from every other GT — it carries a high-voltage battery and a high-voltage starter-alternator on top of the M177 V8. NHTSA campaign 25V129000 covers 2023-2024 and 2025 AMG G… Severity: high.
The in-tank fuel pump fitted to a broad range of 2021-2024 Mercedes-Benz models including the AMG GT uses an impeller that did not meet material specification. The impeller swells or deforms in service, contacts the pump housing and binds. The mechanical resistance shuts the pump… Severity: high.
The GT 43 and GT 53 use the M256 inline-six with a 48-volt EQ Boost integrated starter-generator that replaces the conventional starter and alternator. Two distinct failures cluster here. First, a safety defect: NHTSA campaign 24V100000 covers 2021-2023 GT 43 and GT 53 whose 48-v… Repairs typically run $900-$3,500. Severity: high.
On the X290 four-door AMG GT (GT 43 / GT 53), the transmission wiring harness can be routed incorrectly so that the electrical connector sits where it is exposed to water and road spray. The connector corrodes, and the corroded contacts can short-circuit — which Mercedes-Benz its… Severity: high.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.
