Recall 23V309 covers 3,828 select 2022-2023 Mercedes-Benz EQS, EQE, and S 580 E vehicles for missing battery-malfunction alerts. Repair is free at franchised Mercedes-Benz dealers.
Mercedes-Benz is recalling 3,828 2022-2023 EQS580, Eqs 450+, and related electric vehicles under recall 23V309 because high-voltage battery monitoring software can fail to alert the driver to a battery malfunction. The safety risk is loss of that warning, and Mercedes-Benz dealers will update the software free of charge.
Does this recall apply to your specific vehicle?
The official, free per-VIN recall check is run by NHTSA. Enter your VIN and we'll forward you directly — and add you to a free watchlist so you hear about new recalls for your vehicle.
Check my VIN at NHTSARecallNotify doesn't check your VIN — NHTSA's official tool does. We use your email only to alert you to new recalls.
Watch this vehicle for recalls
Add it to your free watchlist and we will alert you as new federal recalls are posted for your year, make and model. New-recall alerts are rolling out now.
You are on the watchlist.
We will email you as new federal recalls are posted for your vehicle.
What's wrong?
The battery management software in these 2022-2023 Mercedes-Benz vehicles watches the high-voltage battery and its diagnostic system. Its job is to detect a battery malfunction and trigger a driver warning when the system sees a fault that needs attention. That warning matters because the driver depends on the car to identify an electrical fault before continuing to drive.
On affected vehicles, the Battery Management System can develop a fault that interferes with certain diagnostic functions. When that happens, the software does not give the required battery malfunction alert. Mercedes-Benz recalled the vehicles because that missing warning means the system does not comply with FMVSS 305, the federal rule covering electric-powered vehicle protection from electrolyte spillage and electrical shock.
The warning sign is the problem itself: in the fault condition, the battery malfunction alert does not activate. Do not rely on the dashboard alone to confirm whether this recall applies.
Who's affected?
Spans 8 Mercedes-Benz models across the 2022 and 2023 model years, all tied to battery management software for the high-voltage traction battery.
| 2023 Mercedes-Benz EQS580 | high-voltage traction battery |
|---|---|
| 2023 Mercedes-Benz Redundant Eqe 350 4MATIC | high-voltage traction battery |
| 2022 Mercedes-Benz Eqs 450 | high-voltage traction battery |
| 2022 Mercedes-Benz Eqs 580 | high-voltage traction battery |
| 2022 Mercedes-Benz AMG Eqs 53 | high-voltage traction battery |
| 2022 Mercedes-Benz Eqs 450+ | high-voltage traction battery |
| 2023 Mercedes-Benz EQS450 | high-voltage traction battery |
| 2023 Mercedes-Benz S 580 E | high-voltage traction battery |
| Units affected | 3,828 |
| Field incidents | NHTSA has logged no field incidents to date. |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether your specific vehicle is included.
What's the safety risk?
The battery monitoring system can fail to alert the driver when the high-voltage battery has a malfunction. That leaves less time to respond to a battery fault and increases the risk of injury. If your VIN is included, schedule the software update soon and do not rely on a warning alone. Repair is free at any franchised Mercedes-Benz dealer.
What should I do?
- Check your VIN to confirm your 2022-2023 Mercedes-Benz EQS580, Redundant Eqe 350 4MATIC, Eqs 450, Eqs 580, AMG Eqs 53, Eqs 450+, EQS450, or S 580 E is included in this recall.
- Contact a franchised Mercedes-Benz dealer to schedule the free battery-management software update that restores driver alerts for battery malfunctions.
- Bring the recall notice if you have it, and reference recall number 23V309 when you call.
- Use extra caution until the update is complete; the software defect can leave you without a battery-malfunction alert.
What happens at the repair
At the dealer, a Mercedes-Benz technician updates the battery management system software so the vehicle can alert the driver about a battery malfunction as required. The software update and dealer labor are free under the recall. Out-of-pocket repairs already paid are handled through the new vehicle warranty, not through a separate reimbursement program, because the involved vehicles remain under warranty. Ask the service desk how warranty coverage applies if you have prior repair paperwork.
| Reimbursement | Warranty coverage applies |
|---|
Timeline
| May 2, 2023 | NHTSA published the recall |
|---|---|
| May 5, 2023 | Dealer notification began |
| May 5, 2023 | Dealer notification ended |
| June 27, 2023 | Interim owner notification (was planned for this date) |
| August 18, 2023 | Owner notification mailed |
Frequently asked questions
What is recall 23V309?
Recall 23V309 covers 3,828 2022-2023 Mercedes-Benz EQS580, Redundant Eqe 350 4MATIC, Eqs 450, Eqs 580, AMG Eqs 53, Eqs 450+, EQS450, and S 580 E vehicles. The battery monitoring software does not alert the driver about a high-voltage battery malfunction, increasing injury risk.
What should I do if my 2022-2023 Mercedes-Benz EQS580, Redundant Eqe 350 4MATIC, Eqs 450, Eqs 580, AMG Eqs 53, Eqs 450+, EQS450, or S 580 E is on this recall?
Check your VIN to confirm your specific vehicle is included in recall 23V309. If it is, contact a franchised Mercedes-Benz dealer to schedule the battery management system software update. Reference recall number 23V309 when you call. The repair is free.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost, and Mercedes-Benz dealers will update the battery management system software free of charge. Parts and labor are covered at any franchised Mercedes-Benz dealer.
What is the safety risk?
The safety risk is that the high-voltage battery monitoring system does not alert the driver when the battery has a malfunction. Without that alert, the driver loses a key warning about an electric-vehicle battery problem, increasing the risk of injury.
When were Mercedes-Benz owners notified?
Mercedes-Benz mailed owner notification letters beginning August 18, 2023. If you bought the vehicle used or never received a letter, check your VIN to confirm whether your vehicle is included, then call a franchised Mercedes-Benz dealer with recall number 23V309.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/23V309000 |
|---|---|
| Mercedes-Benz customer service | 1-800-367-6372 |
| NHTSA recall # | 23V309 |
| NHTSA recall # (full) | 23V309000 |
Source documents
-
Download Quarterly Report (PDF) - Download Owner Notice (PDF)
- Download Owner Notification Letter (PDF)
- Download Recall Investigation Document (PDF) (PDF)
- Download Recall Report (PDF)
- Download Recall Document (PDF) (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 20, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →