The 2024–2025 Honda Prologue can experience a sudden loss of motive power due to a Battery Energy Control Module (BECM) software error that falsely triggers a high-voltage shutdown. This occurs without warning, shifting the vehicle to neutral or stopping it completely, which increases the risk of a crash or being stranded. The fix is a dealer-performed software update under a safety recall, free of charge to owners. If the vehicle is out of warranty, a dealer flash typically costs $150–$250.

The 2024–2026 Honda Prologue, especially early 2024 builds, suffers from parasitic 12-volt battery drain caused by the Ultium platform's power management software failing to de-energize modules when parked. Symptoms include a completely dead vehicle after 12–48 hours, with doors failing to unlock and no dashboard response, often requiring a jump start or tow. Dealers replace the 12V battery and apply a software update; under warranty this is free, but out-of-warranty replacement costs roughly $200–$300.

The 2024–2025 Honda Prologue's Google-based infotainment system frequently freezes, shows a black screen, or randomly reboots, cutting off climate controls, Apple CarPlay/Android Auto, and camera functions. This can distract the driver and cause loss of critical vehicle features. The remedy is an OTA or dealer-flashed software update, free under the factory warranty; if not covered, dealer diagnostics and flashing typically cost $100–$200.

The 2024–2026 Honda Prologue, particularly early 2024 builds, can fail to initiate DC fast charging, stop charging unexpectedly, or limit charging speed to about 40 kW instead of the rated 150 kW due to a bug in the charging control logic. This shows a 'Charge Fault' error and makes road trips impractical, potentially stranding the driver at a charging station. The fix is a software update to the BECM and Vehicle Control Module, covered under warranty; no out-of-pocket cost is documented beyond diagnostics.