Recall 20V047 affects 28 2019 Mercedes-Benz AMG GT63 and AMG GT 63 vehicles for chafing transmission wiring. Repair is free at any franchised Mercedes-Benz dealer.
Mercedes-Benz is recalling 28 2019 AMG GT63 and AMG GT 63 vehicles because an automatic-transmission wiring harness was not properly secured and can chafe against the drive shaft. If that damage leads to an engine stall, crash risk increases; Mercedes-Benz dealers will complete the recall repair free of charge.
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What's wrong?
The automatic transmission wiring harness on 2019 Mercedes-Benz AMG GT63 and AMG GT 63 vehicles carries electrical signals between the transmission and the vehicle controls. A fixing clip holds that harness in place so it stays clear of moving parts, including the drive shaft. When secured correctly, the harness does not rub while the drive shaft turns.
On affected vehicles, the fixing clip was installed outside the current production specification. That leaves the harness positioned close enough to contact the drive shaft. As the drive shaft rotates, it can rub through the harness insulation and damage the wiring. Depending on which wire is damaged, the transmission controls or propulsion system can be affected, including an engine stall.
There is no warning sign before the wiring harness is mounted incorrectly or begins to rub. If the harness is damaged and the vehicle cannot be shifted into Park, a message appears in the instrument cluster.
Who's affected?
The naming appears as both AMG GT63 and AMG GT 63, with automatic-transmission and wiring components in the recall.
| 2019 Mercedes-Benz AMG GT63 | automatic transmission |
|---|---|
| 2019 Mercedes-Benz AMG GT 63 | wiring |
| 2019 Mercedes-Benz AMG GT 63 | automatic transmission |
| 2019 Mercedes-Benz AMG GT63 | wiring |
| Units affected | 28 |
| Field incidents | NHTSA has logged 28 field incidents to date. |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether your specific coupe is included.
What's the safety risk?
Damage to the wiring harness can cause an engine stall, which increases the risk of a crash. There is no advance warning of incorrect clip mounting. If the vehicle will not shift into Park or the instrument cluster shows a message, stop using it and call the dealer. Repair is free at any franchised Mercedes-Benz dealer.
What should I do?
- Check your VIN to confirm your 2019 Mercedes-Benz AMG GT63 or AMG GT 63 is included in this recall.
- Contact a franchised Mercedes-Benz dealer to schedule the free transmission wiring-harness inspection and repair.
- Ask the dealer to secure, repair, or replace the wiring harness so it does not chafe against the drive shaft and stall the engine.
- Bring the recall notice if Mercedes-Benz mailed one. If not, reference recall number 20V047 when you call.
- Drive cautiously until the repair is complete, and stop in a safe place if the engine stalls.
What happens at the repair
At the dealer, a Mercedes-Benz technician inspects the automatic transmission wiring harness and its mounting clips, then repairs or replaces any damaged or unsecured parts so the harness stays clear of the drive shaft. The recall repair is free, including parts and labor. Out-of-pocket repairs already paid are handled through the new vehicle warranty, not through a separate reimbursement program, since all involved vehicles remain covered by that warranty. Ask the service desk how warranty coverage applies if you have prior repair paperwork.
| Reimbursement | Warranty coverage applies |
|---|
Timeline
| January 28, 2020 | NHTSA published the recall |
|---|---|
| February 3, 2020 | Dealer notification began |
| March 13, 2020 | Owner notification mailed |
| March 27, 2020 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| March 27, 2020 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 20V047?
Recall 20V047 covers 28 2019 Mercedes-Benz AMG GT63 and AMG GT 63 vehicles with an automatic-transmission wiring harness that was not properly secured. The harness can chafe against the drive shaft and lead to an engine stall, increasing crash risk.
What should I do if my 2019 Mercedes-Benz AMG GT63 or AMG GT 63 is on this recall?
Check your VIN to confirm your specific vehicle is included in recall 20V047. If it is, contact a franchised Mercedes-Benz dealer to schedule the wiring-harness and mounting-clip inspection. Reference recall number 20V047 or Mercedes-Benz recall number 2020020016 when you call.
Is the recall repair free?
Yes. Federal recall law requires the recall repair at no cost to the owner. Mercedes-Benz dealers will inspect the mounting clips and wiring harness, then repair or replace the affected parts as needed, free of charge.
Is it safe to drive before the recall repair?
NHTSA campaign 20V047 does not list a do-not-drive instruction, but the defect involves a wiring harness that can chafe against the drive shaft and cause an engine stall. If the vehicle stalls, pull over safely and contact a Mercedes-Benz dealer for repair scheduling.
When did Mercedes-Benz start this recall repair?
Mercedes-Benz began the recall on March 13, 2020. The dealer remedy is available now, so owners with an included VIN can schedule the mounting-clip and wiring-harness inspection with a franchised Mercedes-Benz dealer.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/20V047000 |
|---|---|
| Mercedes-Benz customer service | 1-800-367-6372 |
| NHTSA recall # | 20V047 |
| NHTSA recall # (full) | 20V047000 |
Source documents
-
Download Quarterly Report (PDF) - Download Recall Report (PDF)
- Download Recall Investigation Document (PDF) (PDF)
- Download Owner Notification Letter (PDF)
- Download Owner Notice (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 24, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →