2019 Mercedes-Benz GLA 250 Recall: Power supply for the automatic transmission control unit might be…
NHTSA campaign 21V033000 · Power Train · filed Jan 29, 2021 · verified Jul 30, 2026
The defect
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2019 GLA 250 vehicles. The power supply for the automatic transmission control unit might be interrupted while driving, possibly causing the transmission to shift into neutral.
The risk
If the transmission shifts into neutral while driving, there would be loss of drive power, increasing the risk of a crash.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
MBUSA will notify owners, and dealers will replace the transmission control unit, free of charge. The recall began March 18, 2021. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2021020038.
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Affected vehicles
| Make | Model | Model years |
|---|---|---|
| Mercedes-Benz | GLA 250 | 2019 |
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All Mercedes-Benz GLA 250 recalls → · All Mercedes-Benz recalls →
Source: NHTSA recall database, campaign 21V033000 (manufacturer number 2021020038). Data last verified Jul 30, 2026.