Recall 20V227 covers 149 2020 Mercedes-Benz AMG GT vehicles for eCall wiring reporting the wrong location. Free repair at a franchised Mercedes-Benz dealer.
Mercedes-Benz is recalling 149 2020 AMG GT vehicles because the eCall communication module was built without the wiring harness ground line on affected cars. That defect can send an inaccurate location or block voice contact with the call center, so emergency responders arrive later after a crash or other emergency; Mercedes-Benz dealers will complete the repair free of charge.
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What's wrong?
The eCall communication module in the 2020 Mercedes-Benz AMG GT is the electronics unit that contacts an emergency call center after a crash or SOS request. Its wiring harness supplies power and ground, which lets the module send the vehicle location and carry voice audio between the car and the call center. That ground connection has to be direct and stable.
On affected AMG GT vehicles, the module's wiring harness was built without the intended ground line. Mercedes-Benz found the module was getting its ground path through the microphone shielding instead. That path passed some production tests, but it was not the specified circuit and its performance can degrade over the vehicle's life. If the connection weakens, the emergency call system can send the wrong vehicle location and limit spoken communication with the call center.
The warning sign is an SOS message in the instrument cluster. If that message appears, the emergency call system has detected a malfunction.
Who's affected?
| 2020 Mercedes-Benz AMG GT | Communication |
|---|---|
| Units affected | 149 |
| Field incidents | NHTSA has logged no field incidents to date. |
Not every 2020 Mercedes-Benz AMG GT is on the list. Check your VIN to confirm whether your specific car is included.
What's the safety risk?
An inaccurate vehicle location or failed call-center connection can delay emergency responders during an emergency, increasing injury risk. An SOS message in the instrument cluster alerts you to an emergency call system malfunction. Schedule the repair soon, especially if that message appears. Repair is free at any franchised Mercedes-Benz dealer.
What should I do?
- Check your VIN to confirm your 2020 Mercedes-Benz AMG GT is included in this recall.
- Contact a franchised Mercedes-Benz dealer to schedule the free communication-module wiring-harness repair that fixes the missing eCall ground line.
- Bring the recall notice if Mercedes-Benz mailed one. If not, reference recall number 20V227 when you call.
- Use a phone to contact emergency services until the repair is complete, because the eCall system can send an inaccurate location or block voice contact.
What happens at the repair
At the dealer, a Mercedes-Benz technician repairs the wiring harness for the emergency call system communication module, including the missing ground line connection covered by the recall. The repair is available now, and parts and 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 remained under warranty. Ask the service desk how warranty coverage applies if you have prior repair paperwork.
| Reimbursement | Warranty coverage applies |
|---|
Timeline
| April 21, 2020 | NHTSA published the recall |
|---|---|
| April 28, 2020 | Dealer notification began |
| May 22, 2020 | Interim owner notification (was planned for this date) |
| July 2, 2020 | Owner notification mailed |
Frequently asked questions
What is recall 20V227?
Recall 20V227 covers 149 2020 Mercedes-Benz AMG GT vehicles with an eCall communication module wiring issue. The missing ground line can send an inaccurate vehicle location or block voice communication with the call center during an emergency.
What should I do if my 2020 Mercedes-Benz AMG GT is on this recall?
Check your VIN to confirm your specific AMG GT is included in recall 20V227. If it is, contact a franchised Mercedes-Benz dealer to schedule the communication module wiring harness repair. Reference recall number 20V227 when you call. The repair is free.
Is the recall repair free?
Yes. Federal recall law requires manufacturers to repair safety defects at no cost. Mercedes-Benz dealers will repair the communication module wiring harness free of charge, including parts and labor.
What is the safety risk with this Mercedes-Benz AMG GT recall?
The risk is delayed emergency response after a crash or other emergency. If the eCall module sends the wrong vehicle location or voice communication with the call center is restricted, responders can have less accurate information when help is needed.
When did the Mercedes-Benz AMG GT recall repair become available?
The recall repair began July 2, 2020. Mercedes-Benz dealers can repair the communication module wiring harness for affected 2020 AMG GT vehicles, and owners can contact Mercedes-Benz customer service at 1-800-367-6372 for recall support.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/20V227000 |
|---|---|
| Mercedes-Benz customer service | 1-800-367-6372 |
| NHTSA recall # | 20V227 |
| NHTSA recall # (full) | 20V227000 |
Source documents
-
Download Recall Document (PDF) (PDF) - Download Quarterly Report (PDF)
- Download Recall Document (PDF) (PDF)
- Download Owner Notification Letter (PDF)
- Download Owner Notice (PDF)
- Download Recall Report (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 23, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →