- Vehicles
- 1,292,258
- Built between
- Not published
- Models
- 97
- Recall type
- Vehicle
- Initiated by
- Manufacturer
- Owners notified
- 12 March 2021
- Repaired
- 95%
- Unrepaired
- 61,238
Does this affect my vehicle?
The manufacturer did not publish a build-date range for this recall, so the model and year list below is the only way to tell whether your vehicle is covered.
- 2019-2020 Mercedes-Benz A 220
- 2020 Mercedes-Benz AMG A35
- 2017-2021 Mercedes-Benz AMG C43
- 2017-2020 Mercedes-Benz AMG C63
- 2020-2021 Mercedes-Benz AMG CLA35
- 2017-2021 Mercedes-Benz AMG CLA45
- 2019-2020 Mercedes-Benz AMG CLS53
- 2017-2018 Mercedes-Benz AMG CLS63
- 2017-2018 Mercedes-Benz AMG E43
- 2019-2021 Mercedes-Benz AMG E53
- 2018-2021 Mercedes-Benz AMG E63
- 2017-2020 Mercedes-Benz AMG G63
- 2017-2018 Mercedes-Benz AMG G65
- 2021 Mercedes-Benz AMG GLA35
- 2017-2021 Mercedes-Benz AMG GLA45
- 2021 Mercedes-Benz AMG GLB35
- 2017-2021 Mercedes-Benz AMG GLC43
- 2018-2021 Mercedes-Benz AMG GLC63
- 2017-2019 Mercedes-Benz AMG GLE43
- 2021 Mercedes-Benz AMG GLE53
- 2017-2021 Mercedes-Benz AMG GLE63
- 2017-2021 Mercedes-Benz AMG GLS63
- 2017-2020 Mercedes-Benz AMG GT
- 2018-2020 Mercedes-Benz AMG GT C
- 2018-2020 Mercedes-Benz AMG GT R
- 2017-2019 Mercedes-Benz AMG GT S
- 2021 Mercedes-Benz AMG GT43
- 2019-2021 Mercedes-Benz AMG GT53
- 2019-2021 Mercedes-Benz AMG GT63
- 2017-2021 Mercedes-Benz AMG S63
- 2018-2019 Mercedes-Benz AMG S65
- 2018-2020 Mercedes-Benz AMG SL63
- 2017-2018 Mercedes-Benz AMG SL65
- 2019 Mercedes-Benz AMG SLC 43
- 2020 Mercedes-Benz AMG SLC43
- 2017 Mercedes-Benz B 250E
- 2017-2021 Mercedes-Benz C 300
- 2018-2020 Mercedes-Benz C 350 E
- 2016 Mercedes-Benz C300
- 2017 Mercedes-Benz C350E
- 2018-2021 Mercedes-Benz CLA 250
- 2016-2017 Mercedes-Benz CLA250
- 2019-2021 Mercedes-Benz CLS 450
- 2018 Mercedes-Benz CLS 550
- 2017 Mercedes-Benz CLS550
- 2018-2019 Mercedes-Benz E 300
- 2020-2021 Mercedes-Benz E 350
- 2021 Mercedes-Benz E 350 E
- 2018 Mercedes-Benz E 400
- 2019-2021 Mercedes-Benz E 450
- 2017 Mercedes-Benz E300
- 2017 Mercedes-Benz E400
- 2017 Mercedes-Benz E550
- 2019-2020 Mercedes-Benz G 550
- 2017-2018 Mercedes-Benz G550
- 2017-2021 Mercedes-Benz GLA 250
- 2020-2021 Mercedes-Benz GLB 250
- 2018-2021 Mercedes-Benz GLC 300
- 2018-2020 Mercedes-Benz GLC 350
- 2016-2017 Mercedes-Benz GLC300
- 2018-2021 Mercedes-Benz GLE 350
- 2021 Mercedes-Benz GLE 350 E
- 2018-2019 Mercedes-Benz GLE 400
- 2020-2021 Mercedes-Benz GLE 450
- 2018 Mercedes-Benz GLE 550 E
- 2020 Mercedes-Benz GLE 580
- 2017 Mercedes-Benz GLE350
- 2017 Mercedes-Benz GLE400
- 2017 Mercedes-Benz GLE550E
- 2018, 2020 Mercedes-Benz GLS 450
- 2018-2019 Mercedes-Benz GLS 550
- 2020 Mercedes-Benz GLS 580 4MATIC
- 2017, 2019, 2021 Mercedes-Benz GLS450
- 2017 Mercedes-Benz GLS550
- 2021 Mercedes-Benz GLS580
- 2018-2020 Mercedes-Benz S 450
- 2020-2021 Mercedes-Benz S 560
- 2019-2020 Mercedes-Benz S 560 E
- 2017 Mercedes-Benz S550
- 2017 Mercedes-Benz S550E
- 2018-2019 Mercedes-Benz S560
- 2017 Mercedes-Benz S600
- 2017 Mercedes-Benz S65 AMG
- 2017 Mercedes-Benz S650
- 2018-2020 Mercedes-Benz SL 450
- 2018-2020 Mercedes-Benz SL 550
- 2017 Mercedes-Benz SL450
- 2017 Mercedes-Benz SL550
- 2017 Mercedes-Benz SL63
- 2018-2020 Mercedes-Benz SLC 300
- 2017-2018 Mercedes-Benz SLC 43 AMG
- 2017 Mercedes-Benz SLC300
- 2021 Mercedes-Maybach GLS 600
- 2018-2020 Mercedes-Maybach S 560 4MATIC
- 2019-2020 Mercedes-Maybach S 650
- 2017 Mercedes-Maybach S550
- 2017 Mercedes-Maybach S600
Repair progress
61,238 of 1,292,258 vehicles in this recall had still not been repaired as of Q4 2023.
95% repaired — 1,231,020 of 1,292,258 reported
Manufacturers file these figures with NHTSA each quarter. Vehicles the manufacturer could not trace, or that have been scrapped or exported, are counted separately and are not included in the unrepaired figure.
What the defect is
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2016 - 2021 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, GT-Class, C-Class, E-Class, S-Class, CLS-Class, SL-Class, B-Class, GLB-Class, GLC-Class, and G-Class vehicles. Please refer to the Part 573 report for specific vehicle model details. The software design of the communication module may fail to communicate the correct vehicle location for the emergency call system (eCall) in the event of a crash.
What could happen
Failure of the eCall system may result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash.
What gets fixed
MBUSA will notify owners, and the communication module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. The recall began March 12, 2021.
This recall is fixed by a software update. The manufacturer reports the remedy can be delivered over the air, so affected vehicles may not need a dealer visit. Confirm with the manufacturer before assuming yours has received it.
Parts involved
- Sw HermesA1779021200Control Module Unit Software
- Sw HermesA1779024806Control Module Unit Software
- Sw HermesA2139020305Control Module Unit Software
- Sw HermesA2139022406Control Module Unit Software
- Sw HermesA2139022909Control Module Unit Software
- Sw HermesA2139023009Control Module Unit Software
- Sw HermesA2139023705Control Module Unit Software
- Sw HermesA2139026810Control Module Unit Software
- Sw HermesA2139026910Control Module Unit Software
- Sw HermesA2139026917Control Module Unit Software
- Sw HermesA2139027110Control Module Unit Software
- Sw HermesA2139027520Control Module Unit Software
- Sw HermesA2139027600Control Module Unit Software
- Sw HermesA2139027820Control Module Unit Software
- Sw HermesA2139028015Control Module Unit Software
- Sw HermesA2139028215Control Module Unit Software
- Sw HermesA2139029208Control Module Unit Software
- Sw HermesA2139029212Control Module Unit Software
- Sw HermesA2139029508Control Module Unit Software
- Sw HermesA2229022118Control Module Unit Software
- Sw HermesA2229023217Control Module Unit Software
- Sw HermesA2229025419Control Module Unit Software
- Sw HermesA2229026318Control Module Unit Software
- Sw HermesA2229026619Control Module Unit Software
- Sw HermesA2229026719Control Module Unit Software
- Sw HermesA2229027218Control Module Unit Software
- Sw HermesA2229027413Control Module Unit Software
- Sw HermesA2229027718Control Module Unit Software
- Sw HermesA2229028414Control Module Unit Software
- Sw HermesA2229029214Control Module Unit Software
- Sw HermesA2229029719Control Module Unit Software
- Sw HermesA2229029819Control Module Unit Software
- Sw HermesA2479021803Control Module Unit Software
- Sw HermesA2479021903Control Module Unit Software
- Sw HermesA2479022704Control Module Unit Software
- Sw HermesA2479026100Control Module Unit Software
- Sw HermesA2479026400Control Module Unit Software
- Sw HermesA2479026702Control Module Unit Software
- Sw HermesA2479027703Control Module Unit Software
- Sw HermesA2479027803Control Module Unit Software
- Sw HermesA2479028701Control Module Unit Software
- Sw HermesA2479029301Control Module Unit Software
- Sw HermesA2479029901Control Module Unit Software
Part numbers are as filed by the manufacturer and are listed for reference. Your dealer will confirm the correct part for your vehicle.
Timeline
- Recall reported to NHTSA5 February 2021
- Owners notified12 March 2021
- Latest repair reportQ4 2023 — 95% repaired
Your rights
A safety recall repair is free. Under US federal law the manufacturer must fix a safety defect at no cost to you — no charge for parts, labor or diagnosis — whether or not you are the original owner. A dealer cannot charge you for recall work, and cannot require you to have bought the vehicle from them.
That entitlement is not unlimited. It applies where the vehicle was first sold less than 15 years before the recall was announced — 5 years for tires. Past that a manufacturer may still do the repair free of charge, and many do, but they are no longer obliged to. This recall was reported on 5 February 2021.
To arrange the repair, contact any franchised dealer for the brand. If a dealer refuses the work or tries to charge for it, you can report that to NHTSA at nhtsa.gov/recalls or on 1-888-327-4236.
Manufacturer contact
Owners may contact MBUSA customer service at 1-877-762-8267. MBUSA's number for this recall is 2021020025.
Official source
- Manufacturer's recall number
- 2021020025
- Recalling manufacturer
- Mercedes-Benz USA, LLC
- Recall initiated by
- MFR
Everything on this page — the models listed, the build dates and the repair figures — comes from the manufacturer's filing to NHTSA and describes the vehicle line as a whole, not any individual car. Only the manufacturer can confirm whether a specific vehicle is affected, and whether its recall work has already been carried out. Check yours by VIN and read the official notice at nhtsa.gov/recalls.
Additional 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.
Check your own vehicle
This page describes the recall, not any one car. To see which recalls cover a specific vehicle, search by make, model and year.
A VIN lookup here identifies your vehicle and shows recalls issued for that make, model and year. It cannot tell you what is still open on your individual car - only the manufacturer knows that. Search by VIN instead, or check your VIN at nhtsa.gov for whether a recall is still open on your individual car.