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Service bulletins for the 2019 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.

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

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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
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)
NCU-20200800172020-09-21. Service bulletin. ELECTRICAL SYSTEM:ADAS:CONTROL MODULE. Perform SCN coding in AMG DRIVE UNIT control unit
NCU-20200800052020-09-21. Service bulletin. ENGINE; ELECTRICAL SYSTEM:SOFTWARE. Mercedes-Benz AG ("MBAG"), the manufacturer of Mercedes-Benz, has determined that on certain MY19-20 C-Class, GLC-Class, and AMG GT (205, 253, and 290 platform) vehicles, the software for the AMG drive unit control unit does not correspond to the current series production configuration. As a result, noise may occur from the engine mounts. An authorized Mercedes-Benz dealer will update the software as necessary.
LI54.10-P-0696982020-02-24. Service bulletin. ELECTRICAL SYSTEM. Functional impairment of 48 V on-board electrical system
LI54 30-P-0697422019-07-15. Service bulletin. ELECTRICAL SYSTEM. Head-up display (HUD) code 463 ? lines on the display, display flickers
LI83 30-P-0690742019-04-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:APPLIANCE:AIR CONDITIONER. No difference between blower setting 5 and 6 on air conditioning system
LI82-85-P-0693812019-03-25. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL. MBUX multimedia system: The central display turns dark, interference noise from speakers
LI82-85-P-0693702019-03-25. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT:ELECTRICAL. MBUX multimedia system: Fault code B1F9997 is shown as stored

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