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Data through Oct 2026
Campaign 25V-129

Software error may cause the high-voltage starter alternator control unit to fail, causing a loss of drive power

View NHTSA filingAll Mercedes-Benz campaigns
Defect summary

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.

Consequence

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.

Source: NHTSA ODI recalls file, campaign 25V129000. Text as published by NHTSA.
Vehicles covered

7 product lines are covered

Owner complaints filed with NHTSA about electrical system on these vehicles: 0, of which 0 involved a crash, fire, injury or death. Complaints are not verified by NHTSA.

Vehicles covered by campaign 25V-129
MakeModelModel yearsComplaints on this component
Mercedes-BenzAMG GLC63 S E20250
Mercedes-BenzAMG GLC63 S E 4MATIC+ Coupe20250
Mercedes-BenzAMG GT 63 S E Coupe20230
Mercedes-BenzAMG GT63 S E2024 to 20250
Mercedes-BenzAMG S 63 E2023 to 20240
Mercedes-BenzAMG S 63 E 4MATIC+20250
Mercedes-BenzAMG SL63 S E2024 to 20250
Source: NHTSA ODI recalls and complaints files. Equipment, tire and child-seat campaigns list products, not vehicles.