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Service bulletins for the 2021 Mercedes-Benz AMG GT

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

244 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Bulletins, newest first
LI09.00-P-0740932022-01-06. Service bulletin. ENGINE AND ENGINE COOLING. "MY15+ M278 and M157 Equipped Vehicles with Fault Code ""P023400 – Boost Pressure is Too High"" "
LI54.10-P-069682022-01-06. Service bulletin. ELECTRICAL SYSTEM. "Functional impairment of 48 V on-board electrical system "
NCU20210900042022-01-03. Service bulletin. STRUCTURE:BODY:HOOD:HINGE AND ATTACHMENTS:SUPPORT DEVICE/STRUT; UNKNOWN OR OTHER. Mounting support could be cracked.
LI2700P0731242022-01-03. Service bulletin. ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:SENSOR; BACK OVER PREVENTION. Model series 190.4 Anti-theft alarm activates without obvious cause.
LI8285P073387Ver2022-01-03. Service bulletin. EQUIPMENT:ELECTRICAL. The customer may note that the Dashcam feature is inoperable with one of the following complaints.
LI8285P073387Ver2022-01-03. Service bulletin. EQUIPMENT:ELECTRICAL. The customer may note that the Dashcam feature is inoperable with one of the following complaints.
LI8285P073387Ver2022-01-03. Service bulletin. EQUIPMENT:ELECTRICAL. The customer may note that the Dashcam feature is inoperable with one of the following complaints.
LI8285P073387Ver2022-01-03. Service bulletin. EQUIPMENT:ELECTRICAL. The customer may note that the Dashcam feature is inoperable with one of the following complaints:
LI8285P0699612022-01-03. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). Upon selecting navigation, the central display may show the following message: "Map data does not match with your system. Please insert a medium containing the corresponding map data". the navigation menu cannot be opened.
LI7220P0731402022-01-03. Service bulletin. STRUCTURE:BODY:TAILGATE. The tailgate can only be fully opened by operating it again, multiple times where necessaryor by manually raising tailgate.
LI2700P0731242021-10-25. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; POWER TRAIN:AUTOMATIC TRANSMISSION. Transmission diagnosis using th eIntelligent Predictive Repair (IPR) tool.
LI1800P0731202021-10-25. Service bulletin. ENGINE AND ENGINE COOLING. MessageinIC" Engine Oil Level-Reduce Oil Level"
LI0761P0707072021-10-25. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM. M17x.xxx Check Engine Light on with Misfire DTC's
LI22.10-P-0710552021-05-03. Service bulletin. ELECTRICAL SYSTEM. In the quick test, faults P0A1402 and/or P0AB602 are stored in the Drive Unit, electrical fault or open circuit (signal error) in actuation system. Remedy: Replace both acceleration sensors for the engine mounts
LI54.70-P-0726782021-05-03. Service bulletin. SERVICE BRAKES; SERVICE BRAKES, ELECTRIC:SOFTWARE/PROGRAMMING. Message in instrument cluster: "Active Brake Assist - limited function - Update software of ABA control unit (B92/20).
LI82.85-P-0713942021-03-29. Service bulletin. EQUIPMENT:APPLIANCE:TV/RADIO/SPEAKERS; ELECTRICAL SYSTEM. In XENTRY diagnosis, the message "MBUX multimedia system control unit is defective (hard drive, internal fault)" appears while attempting to communicate with the MBUX multimedia system (A26/17)
LI54.10-P-0696982021-03-29. Service bulletin. ELECTRICAL SYSTEM. Complaint: Various causes are possible. The faults listed in the various causes do not all have to be present at all times. Some of these complaints may overlap. Rely on the faults listed in the Cause section for identifying the correct Remedy. 1. No start 2. Yellow or red instrument cluster message for 48 V on-board electrical system battery (G1/3) 3. Limp home mode, overheating, A/C not blowing cold, or loss of acceleration Cause: Cause 1: Software causes intermittent no starts with fault B183387 in DC/DC converter N83/1 Cause 2: Software causes Permanent no starts with fault B183349 and B183371 in 48V battery G1/3. Cause 3: Hardware short circuit in 48V system causes fault B183319 in 48V battery Cause 4: 48V battery detects abnormality and disconnects causing additional symptoms: Limp Home Mode, overheating, A/C not blowing cold, or loss of acceleration This cause will always have fault code in G1/3: B183371 but will Not have B183349. Remedy: Note: each of these remedies correspond to a specific cause. Make sure to match correct Cause with Remedy. Remedy 1: Update software in G1/3 (48V battery) using newest Xentry software and AddOns Remedy 2: 1. Check software version in 48V battery via quick test. If 19/46 000 replace only 48V battery (regardless of other faults)
LI88.20-P-0715702021-02-01. Service bulletin. STRUCTURE:BODY; STRUCTURE:BODY:BUMPERS; STRUCTURE. Front bumper/facia fit above headlamps
LI54.10-P-0696982021-02-01. Service bulletin. ELECTRICAL SYSTEM. Functional impairment of 48 V on-board electrical system

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.