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Mercedes-Benz AMG GT63 S E Recall 25V129: Software Error Can Cause Loss of Drive Power

NHTSA campaign 25V129, reported February 28, 2025, 2,943 vehicles potentially affected.

What this recall means for you

A software error may cause the high-voltage starter alternator control unit in certain hybrid AMG performance vehicles to fail. When this happens, the vehicle can lose drive power, which increases the risk of a crash.

The repair is free. Authorized Mercedes-Benz dealers will update the high-voltage starter alternator control unit software at no charge to the owner. Owner notification letters were mailed on April 11, 2025. If you have questions, you can contact Mercedes-Benz USA customer service at 1-800-367-6372 and refer to recall number 2025030012.

Check your vehicle identification number (VIN) for open recalls, and schedule the software update with a dealer as soon as possible.

Check whether this recall is open on your vehicle

The repair is normally free at an authorized dealer.

Official recall notice

Safety recall 25V129Mercedes-Benz USA, LLC
Component
ELECTRICAL SYSTEM:PROPULSION SYSTEM
Problem
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2023-2024 AMG GT 63 S E Performance 4-door coupe, 2025 AMG GLC 63 S E Performance, GLC 63 S E Performance Coupe, AMG GT 63 S E Performance, 2023-2025 AMG S 63 E Performance, and 2024-2025 AMG SL 63 S E Performance vehicles with a hybrid powertrain. A software error may cause the high-voltage starter alternator control unit to fail, causing a loss of drive power.
Risk
A loss of drive power increases the risk of a crash.
Remedy
Dealers will update the high-voltage starter alternator control unit software, free of charge. Owner notification letters were mailed April 11, 2025. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2025030012.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 888-327-4236 (TTY 888-275-9171) or go to nhtsa.gov.

Affected vehicles

Mercedes-Benz AMG GLC63 S E2025
Mercedes-Benz AMG GLC63 S E 4MATIC+ Coupe2025
Mercedes-Benz AMG GT 63 S E Coupe2023
Mercedes-Benz AMG GT63 S E20242025
Mercedes-Benz AMG S 63 E 4MATIC+202320242025
Mercedes-Benz AMG SL63 S E20242025