Vehicle recall 21V033000 · January 29, 2021
2019 Mercedes-Benz GLA 250
The power supply for the automatic transmission control unit might be interrupted while driving, possibly causing the transmission to shift into neutral.
Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.
- Summary
- 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.
- Consequence
- If the transmission shifts into neutral while driving, there would be loss of drive power, increasing the risk of a crash.
- Remedy
- 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.
- Notes
- 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.
Recall details
- NHTSA campaign
- 21V033000
- Reported to NHTSA
- January 29, 2021
- Filed by
- Mercedes-Benz USA, LLC
- Manufacturer campaign
- 2021020038
- Owner notification
- March 19, 2021
- Vehicles potentially affected
- 4
- Initiated by
- the manufacturer
- Components
- Power train › Automatic transmission › Control module (TCM/PCM/tecm); Power train › Automatic transmission
Vehicles covered
As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.
- Mercedes-Benz GLA 250 (2019): 2019
Has your Mercedes-Benz been repaired?
Recalls here come from NHTSA’s records for the model and year. Not every vehicle of a model is included in every recall, and this site can’t see whether a repair has been done. Only a VIN lookup can tell you that.
NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. Recall repairs are free.