The problem
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.
The fix
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.
Recall details
| NHTSA campaign | 21V-033 (21V033000) |
|---|---|
| Manufacturer number | 2021020038 |
| Manufacturer | Mercedes-Benz USA, LLC |
| Component | Power train › Automatic transmission › Control module (TCM/PCM/tecm) |
| Report date | January 29, 2021 |
| Owners notified | March 19, 2021 |
| Vehicles affected | 4 |
| Initiated by | Manufacturer |
Vehicles covered
Owner complaints about the transmission & drivetrain
Frequently asked questions
Is the recall 21V-033 repair free?
Yes. Mercedes-Benz dealers will fix the problem at no cost: 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.
How do I know if my car is included?
Not every vehicle of the listed model years is affected — the recall covers 4 vehicles built in a certain window. Check your 17-character VIN with our VIN recall check or at nhtsa.gov/recalls.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.