What Triggered the Recall
Honda is recalling 65,135 units of the 2024 Honda Prologue and 2024 Acura ZDX electric vehicles due to a software fault that could leave drivers flying blind, without their rearview cameras, instrument clusters, or warning lights. The problem has been traced to the vehicle’s Radio Control Module (RCM), where six independent software defects can trigger a processing error that prevents the module from transmitting data to the vehicle's displays. Honda began investigating as far back as June 2024, but was unable to replicate the issue until it had already received 148 warranty claims. The Prologue is built on GM's Ultium architecture and the BEV3 platform, which it shares with the Chevrolet Blazer EV, Acura ZDX, and Cadillac Lyriq. GM supplied the frame, suspension, chassis, powertrain, and electrical architecture, while Honda handled everything above the chassis, including the design and interior.
Why a Software Bug Counts as a Safety Defect
This is not a cosmetic glitch or a minor infotainment annoyance. Because of these faults, the affected vehicles do not meet the requirements for Federal Motor Vehicle Safety Standards dealing with control display systems, rear visibility, and electric vehicle safety. Losing your speedometer at highway speed, or reversing without a camera in a crowded parking lot, creates real collision risk. The fact that a line of faulty code can now trigger a federal safety recall tells you everything about how fundamentally the nature of automotive defects has changed. Mechanical failures were once predictable, physical, and visible. Software failures are invisible, intermittent, and can affect thousands of vehicles simultaneously with a single bad build.
Honda
The Fix, and What Comes Next
The good news is that software bugs are, by definition, fixable without replacing a single physical part. Authorized dealers will push the updated software package through the OBD-II port at no cost, with owner notification letters going out by April 20, 2026. Honda has also confirmed that the corrected software was already rolled into Prologue production at the start of the 2025 model year, meaning newer buyers are in the clear. That kind of rapid, over-the-counter fix would have been unthinkable in the era of mechanical recalls. In a way, the Prologue/ZDX recall ironically makes the case for why software-defined vehicles, for all their new risks, may actually be safer in the long run. When the remedy is a download, not a part, automakers can respond faster, cheaper, and at scale.
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