2021 MERCEDES-BENZ CLS 450 Complaints and Recall Information
The 2021 MERCEDES-BENZ CLS 450 has 0 complaints and 225 recalls filed with NHTSA. Owners have not reported any specific vehicle problems in complaints. The recalls involve a variety of components and systems, primarily related to electrical and safety features.
There are 225 recalls addressing multiple systems including electrical wiring, battery security, communication modules, multimedia software, seat belts, airbags, and safety sensors. These recalls cover risks such as fire hazards, failure of safety features, incorrect emergency call function, and improper restraint system operation.
Recalls- Electrical wiring. NHTSA recall 24V100000 affects 12,191 vehicles due to improperly tightened 48-volt ground cable connections which may overheat and increase fire risk. Dealers will inspect and repair the connection at no cost. Owner notification began March 22, 2024.
- Battery security. Recall 22V733000 involves 19,968 vehicles with inadequately secured 12-volt batteries that may fail during crashes disabling safety features including emergency calls and hazard lights. Dealers will secure the battery free of charge. Owner notification started January 20, 2023.
- Communication module software. Recall 22V365000 covers 242,722 vehicles. A SIM card software error can disconnect the mobile network, disabling the emergency call (eCall) system, which delays emergency responders. Software updates will be delivered over-the-air or at dealers for free. Notifications are phased from July 2022 to September 2024.
- Multimedia system software. Recall 21V354000 affects 343,191 vehicles where software may cause a blank or rebooting display, preventing rearview camera function and failing federal rear visibility standards. Dealers will update the software free of charge. Owners were notified beginning June 28, 2021.
- Rear seat belt retractors. Recall 21V483000 includes 4,917 vehicles with rear seat belt automatic locking retractors that may deactivate early, preventing proper child restraint securement. Dealers will inspect and replace parts as needed at no cost. Owner letters were mailed between August and September 2021.
- Side impact air bag sensors. Recall 21V527000 covers 542 vehicles with loose connectors that may delay air bag and seatbelt deployment in side crashes, increasing injury risk. Dealers will inspect and replace sensors free of charge. Notifications were sent September 2021.
- Seat position switches. Recall 21V230000 affects 8,634 vehicles where faulty electrical contacts may prevent air bags and seat belts from activating properly during crashes. Dealers will replace seat position switches at no cost. Owner notification occurred in May 2021.
- Emergency call location software. Recall 21V058000 includes 1,292,258 vehicles. Faulty communication module software may send incorrect vehicle location during emergencies, risking delayed assistance. Software updates by dealer or over-the-air fix the issue free of charge. Recall began March 12, 2021.
Owners dealing with recurring repairs related to these recalls or unresolved safety defects may have rights under their state’s lemon law. Consulting a qualified attorney can help clarify available options.
2021 MERCEDES-BENZ CLS 450 Summary
2021
Model Year
0
Total Complaints
8
Total Recalls
1924423
Vehicles Affected
Recalls
2021 MERCEDES-BENZ CLS 450
12191 vehicles affected
ELECTRICAL SYSTEM:WIRING
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021-2023 CLS450, E450, E450 All-Terrain, AMG E53, AMG GT43, AMG GT53, and 2021 AMG CLS53 vehicles. The 48-volt ground cable connection located in the engine compartment may not be tightened properly and may result in the ground cable overheating.
Risk: An overheated ground cable increases the risk of a fire.
2021 MERCEDES-BENZ CLS 450
242722 vehicles affected
ELECTRICAL SYSTEM:SOFTWARE
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2022 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, AMG GT-Class, C-Class, E-Class, S-Class, SL-Class, GLC-Class, CLS-Class, GLB-Class, and G-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details. An error in the communication module's SIM card software can cause a mobile network connection failure, disabling the emergency call (eCall) system.
Risk: A disabled eCall system would prevent a vehicle occupant from contacting the emergency services call center in an emergency, potentially delaying emergency responders and increasing the risk of injury.
2021 MERCEDES-BENZ CLS 450
19968 vehicles affected
ELECTRICAL SYSTEM:12V/24V/48V BATTERY
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2019-2022 CLS450 Coupe and AMG E53, 2019-2021 AMG CLS53 Coupe, and 2021-2022 E450 vehicles. The 12-Volt battery in the trunk may not be properly secured, which, in the event of a crash, can cause electrical connection failure, disabling various safety features including, emergency call (eCall) system, electric seat adjustment, hazard warning lights, and automatic door locks.
Risk: The inability to operate safety features (eCall system, hazard lights, electric seats, or automatic door locks) can increase the risk of injury during a crash.
2021 MERCEDES-BENZ CLS 450
343191 vehicles affected
ELECTRICAL SYSTEM:SOFTWARE
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2019-2021 CLA-Class, GLE/GLS-Class, A-Class, E-Class, E-Class Coupe and Convertible, GLA/GLB-Class, GLC-Class, CLS-Class, and AMG GT-Class 4-door Coupe vehicles. Please refer to MBUSA's recall report for specific vehicle model details. The MBUX multimedia system software may cause the display to remain black, or reboot after startup. This could result in the rearview camera image not displaying properly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 111, "Rear Visibility."
Risk: A backup camera that displays a blank image reduces the driver's rear view, increasing the risk of a crash or injury.
2021 MERCEDES-BENZ CLS 450
1292258 vehicles affected
ELECTRICAL SYSTEM:SOFTWARE
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.
Risk: Failure of the eCall system may result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash.
2021 MERCEDES-BENZ CLS 450
8634 vehicles affected
SEATS
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021 C-Class, E-Class, E-Class Coupe and Convertible, GLC, CLS, AMG GT 4-door Coupe and G-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details. A faulty electrical contact within the seat position switch may prevent the driver and passenger air bags and seat belt force limiters from properly activating during a crash.
Risk: Air bags and seat belts that do not perform properly in a crash can increase the risk of injury.
2021 MERCEDES-BENZ CLS 450
542 vehicles affected
AIR BAGS:SENSOR:SIDE IMPACT
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021 CLS450, AMG E53, AMG CLS53, E350, E450, AMG GT43, AMG GT53, 2020 S450, S560, G550, AMG GLC63, 2020-2021 GLC300, and AMG G63 vehicles. The side crash sensor connectors may come loose, which could delay the activation of air bags and seatbelts during a side impact crash.
Risk: Air bags and seatbelts that don't function as intended can increase the risk of injury during a crash.
2021 MERCEDES-BENZ CLS 450
4917 vehicles affected
SEAT BELTS:REAR/OTHER:RETRACTOR
Mercedes-Benz, LLC (MBUSA) is recalling certain 2021 G550, AMG G63, E350, E450, AMG CLS53, AMG E53, AMG GT43, AMG GT53, AMG GT63, 2021-2022 CLS450, and AMG E63 vehicles. The rear seat belt automatic locking retractors may deactivate early, which can prevent the child restraint system from securing properly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."
Risk: An unsecured child restraint system can increase the risk of injury during a crash.
Complaints
No complaints found.