NHTSA service bulletin

NHTSA Service Bulletin 11023154: 2022-2025 Mercedes-benz Amg G63

Official manufacturer communication context for 2022-2025 Mercedes-benz Amg G63, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 11023154 summary graphic for 2022-2025 Mercedes-benz Amg G63
11023154NHTSA document ID
Manufacturer communicationcommunication type
6affected product rows
6source rows grouped

Reviewed June 2026 from NHTSA manufacturer communication and service bulletin records. Carchieve is independent and not affiliated with any vehicle manufacturer or government agency.

Quick answer

Complaint 243: Red 12V battery message, white HV warning message, warning message in the IC and if applicable for vehicles with BMS30EB02 yellow HV drive system 465: Red 12V battery message, white HV warning message, warning message in the IC If the initial warning messages are ignored in the same ignition cycle, additional warning messages, e.g. red HV warning message and yellow HV drive system warning message may be shown. The DC/DC converter has stored a combination of the following two fault code groups: 1. P0C3B00, P0E9700, P0E5400, P0C4000. 2. P1D0B00, P1CA000, U011500. In some cases, not all DTCs from one of these groups are triggered. 243: As a consequence, on vehicles with BMS30EB02, the DTC for the auxiliary assembly fuse P0E2F00 can be set. This triggers the yellow HV drive system warning message. In the ignition cycle in which the red 12 V fault message is displayed, the DC/DC converter does not support the 12 V on-board electrical system. This means the 12 V battery may be discharged in the event of longer use. Cause In individual ignition cycles, this may result in faulty wake-up behavior of the DC/DC converter. The DCDC DTCs and warning messages may appear with a time delay. When accessing the vehicle, the white (243/465) HV warning message is displayed. When the HV system is switched on (charging, 12V supports, precon, ignition on), the yellow HV drive system warning message is displayed on the 243 with BMS30EB02 (see below for details). When the vehicle is started/PT-ready (displayed in the IC), the red 12V battery warning message is displayed for 243 and 465. Since the BMS on 243 uses the HV voltage value to check the auxiliary assembly fuse, the auxiliary assembly DTC can (with BMS30EB02) be stored as a consequence and the second (yellow) HV drive system warning message can be displayed in the IC. Remedy The faulty state of the DC/DC converter can always be rectified with an ignition change with BUS idle. The fact that the red 12 V warning message does not appear again is an indication of this. On vehicles with the yellow hybrid drive system message, it is still displayed because it is not automatically reset once the faulty state is reset. Check the DC/DC converter for functionality via Xentry Diagnostics in the workshop: Actuate BUCK mode for approx. 30 s The output current normally jumps to a high value (e.g. 100 A) and then falls slowly to the current specified value e.g. 50 A and then only changes slowly and in small increments. 243 EB311/312 (BMS30EB01): Perform reset of the DC/DC converter, e.g. through a BUS idle or by clearing the fault memory, to exit the faulty state. 243 EB330 (BMS30EB02): Clear the fault memory, since the DTC for the auxiliary assembly fuse and the yellow hybrid drive system warning message are not automatically reset. 465: Perform reset of the DC/DC converter, e.g. through a BUS idle or by clearing the fault memory, to exit the faulty state. !!! Important note: Problems in this area do not have to be invoiced on the damage code for the DC/DC converter 54720. !!! Information: Cause analysis is still ongoing in order to determine a long-term remedy. In cases in which the fault profile occurs multiple times, replacement of the DC/DC converter can be carried out. This may help delay the fault profile from reoccurring.

What this bulletin may mean before buying

Treat this as service research, not a verdict on one car. Before you buy, compare this communication with official recall campaigns, model-level owner complaint patterns, and the exact vehicle’s VIN-decoded specifications. A bulletin can help you ask a seller or dealer sharper questions about software updates, known repairs, warranty extensions and service history.

Affected products listed in this communication

MakeModelModel yearsBuyer note
Mercedes-benzAmg G632025Ask for service records and run the exact VIN before purchase.
Mercedes-benzEqb 250+2023-2025Ask for service records and run the exact VIN before purchase.
Mercedes-benzEqb 300 4matic2022-2025Ask for service records and run the exact VIN before purchase.
Mercedes-benzEqb 350 4matic2022-2025Ask for service records and run the exact VIN before purchase.
Mercedes-benzG 5502025Ask for service records and run the exact VIN before purchase.
Mercedes-benzG 580 EV2025Ask for service records and run the exact VIN before purchase.

Buyer checklist

  1. Run the 17-character VIN and confirm the year, make, model, engine and equipment match the listing.
  2. Check recall campaign pages for safety actions that may require dealer repair.
  3. Compare this bulletin with common problem pages for the same model and component area.
  4. Ask the seller or dealer whether the bulletin procedure, update or inspection has already been completed.
  5. Use the used-car buying checklist and get an independent inspection.

Frequently asked questions

What is NHTSA service bulletin 11023154?

Complaint 243: Red 12V battery message, white HV warning message, warning message in the IC and if applicable for vehicles with BMS30EB02 yellow HV drive system 465: Red 12V battery message, white HV warning message, warning message in the IC If the initial warning messages are ignored in the same ignition cycle, additional warning messages, e.g. red HV warning message and yellow HV drive system warning message may.

Is a service bulletin the same as a recall?

No. A recall is a safety campaign with a required remedy for affected VINs. A service bulletin or manufacturer communication usually describes diagnostic, repair, software, warranty or service information.

How should a used-car buyer use this bulletin?

Use it as a research signal. Compare it with recalls, owner complaints, service records, a VIN report and an independent inspection before buying.

Check the exact VIN before you buy

Model-level pages show public safety patterns. A full VIN report helps confirm the exact vehicle, decoded specs, recall applicability and buyer checks.

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