The 2020 Mercedes-Benz CLS 450 has 5 recalls, the most serious being multiple issues with the automatic emergency call system that can prevent it from contacting first responders or direct them to the wrong location after a crash.
The eCall concerns span several filings but reflect a common problem: in an emergency, the system may fail to connect, fail to transmit the vehicle's correct location, or stop working entirely, all of which can delay help from reaching occupants. There is also a battery-related recall where the 12-volt battery can lose the ability to power certain safety features, including the eCall system, hazard lights, power seats, and automatic door locks, reducing the vehicle's ability to protect occupants during a crash. Separately, a software error can cause the rearview camera display to go blank when reversing, reducing what the driver can see behind the vehicle.
At a glance
What can fail
The 12-volt battery in the trunk may not be properly secured. During a crash, it could shift and disconnect, disabling safety features like emergency calling, power seats, hazard lights, and automatic door locks.
What the fix does
Dealers will secure the 12-volt battery in the trunk to prevent movement during a crash.
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Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
A software error in the communication module's SIM card can prevent mobile network connection, which disables the emergency call (eCall) system.
What the fix does
The communication module software will be updated at no cost through an over-the-air update or by a dealer.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
A software error prevents the rearview camera from displaying the backup image on the screen.
What the fix does
Dealers will update the rearview camera software at no cost to restore the backup image display.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The communication module may have been turned off during service, disabling the Emergency Call function that connects your vehicle to emergency services.
What the fix does
Dealers will inspect the communication module and reactivate it if needed, at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The communication module software may fail to send your vehicle's correct location to emergency services when the eCall system activates during a crash.
What the fix does
A dealer will update the communication module software, or the update will be sent over-the-air, at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
