This page covers 3 recalls and 11 owner complaints for the 2023 Mercedes-Benz Eqs450.
The dominant complaint pattern for the 2023 Mercedes-Benz EQS 450 centers on the automatic emergency braking system triggering without any obstacle or vehicle present. Across multiple reports, owners describe the car initiating hard, sudden stops at highway and city speeds when the road ahead is clear, a pattern commonly called phantom braking. Several owners report the vehicle also pulling laterally during these events, not just stopping abruptly. Dealers in these accounts were often unable to reproduce or diagnose the issue through standard service procedures. A smaller cluster of complaints involves the vehicle failing to start or shutting down unexpectedly, accompanied by a battery malfunction warning on the display; in at least one case, a software update was the proposed remedy before further hardware replacement was considered.
11
Total Complaints
1
Crash-Related
1
With Injuries
By System
The 2023 Mercedes-Benz EQS450 has 3 recalls, the most serious being a software error in the electric drivetrain that can cut drive power without warning, raising the risk of a crash.
The rear seat belt buckles on certain vehicles may not be properly bolted to the body structure, meaning the buckle can give way in a crash and fail to hold a rear passenger. On the battery side, a separate software fault in the high-voltage battery monitoring system can prevent the driver from receiving any alert when the battery develops a malfunction, leaving the driver unaware of a potentially dangerous condition before it worsens.
At a glance
What can fail
The bolts securing the rear seat belt buckles to the vehicle body may not be properly tightened, potentially allowing the buckles to loosen.
What the fix does
Dealers will inspect the rear seat belt buckle bolts and tighten them as needed at no cost.
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Complaints are owner-reported and reflect individual experiences, not confirmed defects. They are distinct from recalls. Data sourced from the national vehicle safety complaint database. See trending complaints →
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
A software error in the electric drivetrain may cause loss of drive power.
What the fix does
Dealers will update the electric drivetrain software at no charge.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The battery monitoring system software may fail to alert you of a battery malfunction, preventing proper safety warnings.
What the fix does
Dealers will update the battery management system software at no charge.
Summarized — see the official notice for exact wording, dates, and contacts.
