2024 Honda Prologue Problems: 11 Known Issues

On the 2024 Honda Prologue, both the instrument cluster and infotainment display can suddenly go blank while driving, eliminating the speedometer, navigation, climate controls, and safety warnings. The defect is in the Radio Control Module software, which manages communication between the vehicle's display systems and other electronic components. Honda issued a safety recall in early 2026 affecting approximately 65,000 Prologue and Acura ZDX vehicles. The failure may occur intermittently and sometimes resolves temporarily after restarting the vehicle, but loss of the driver display while driving is a significant safety concern since the Prologue has no physical instrument gauges.

On the 2024 Honda Prologue, the 2024 Honda Prologue can experience high-voltage electrical system failures that disable DC fast charging, limit acceleration, or disable climate control. The 'Service High Voltage System' warning appears on the dashboard, sometimes accompanied by a sudden loss of heating or cooling. The Prologue uses GM's Ultium battery platform, and the issue may involve the battery conditioning system, onboard charger module, or high-voltage junction box. Some vehicles have been rendered inoperable, requiring tow to the dealer. The issue is distinct from the display blackout recall and affects the vehicle's powertrain and charging capability.

On the 2024-2026 Honda Prologue, prologue owners report the low-voltage 12V auxiliary battery going flat far short of its normal 4-6 year service life, in some cases on nearly new vehicles and after only overnight or a week of parking with a healthy high-voltage pack state of charge. Because every system in the car is electronically gated by the 12V rail, the failure does not look like a slow crank - it produces a dead or flickering display, a shifter that will not move out of Park, a car that will not power up at all, and 'Service Battery Fault - Shutting Down Soon' messages. A weak 12V also prevents the high-voltage contactors from closing reliably, so AC and DC charging sessions abort with relay clicking and never start, which owners frequently misdiagnose as a charger or charge-port problem. Root causes reported at dealers include a genuinely defective cell in the original battery and parasitic drain from modules that fail to sleep.

On the 2024-2026 Honda Prologue, a recurring Prologue-specific complaint is the charge port door itself. The door will not latch closed and pops back open, or the latch position sensor fails to register a closed door so the vehicle displays a persistent 'Charging Door Open' message even with the door visibly shut. Because the vehicle uses charge-door state in its charging and drive-away logic, owners also report the car refusing to initiate a charge session or nagging continuously while driving. Some owners report the charge cable latching mechanism not releasing cleanly. Lubricating the locking mechanism has not resolved it in the reported cases; dealers have resolved several by replacing the complete charge port door assembly, and in some high-voltage-fault cases the charge port assembly itself was replaced.

On the 2024 Honda Prologue, the 2024 Honda Prologue's automatic emergency braking (AEB) system activates unexpectedly with no obstacle or vehicle ahead, causing sudden hard braking that risks rear-end collisions. NHTSA's 2022 investigation into Honda unexpected braking covered the Accord and CR-V, not the Prologue. False activations occur most frequently when reversing, at low speeds in parking lots, and occasionally at highway speeds. The Prologue shares its Ultium platform with GM but uses Honda's own ADAS sensor stack, which appears to have calibration issues. NHTSA has received reports of the AEB activating at approximately 70 mph with no visible threat.

On the 2024-2025 Honda Prologue, honda recalled 2024-2025 Prologue (44,199 units, alongside the 2024 Acura ZDX, ~59,887 total) because the rearview camera housing was assembled with improperly bonded seams. Moisture penetrates the camera body, corrodes the internal electrical components, and the center display eventually shows a blank or badly distorted image when the vehicle is shifted into reverse. This is a HARDWARE defect distinct from the earlier Radio Control Module software recall (26V112) that blanked the whole instrument panel - it cannot be fixed by an OTA update. Honda estimated roughly 4% of the recalled population actually exhibits the defect but recalled the full build range. Improved cameras entered production June 9, 2025, so later builds are outside the population.

On the 2024 Honda Prologue, american Honda notified NHTSA in July 2024 of a safety recall covering a small, tightly defined batch of 2024 Prologue vehicles (39 units in the US) in which the right front lower control link may contain a manufacturing defect. The affected links can fracture in service, which can result in reduced or complete loss of vehicle control without prior warning to the driver. Honda's recall number is PIY, and the dealer procedure is Service Bulletin 24-102. The population is defined by a specific supplier batch number stamped on the part, not by a broad build range, so the vast majority of Prologues are NOT affected - do not assume a front-end noise on your car is this recall. The defect came from contaminated aluminum extrusions at a GM tier-3 supplier and parallels GM's 2024 Chevrolet Blazer EV recall 24V-487.

On the 2024-2026 Honda Prologue, the 2024 Honda Prologue has a widespread defect causing loud clicking or knocking sounds from the front axle area, especially when making turns or accelerating from a stop. CarComplaints lists more than 180 NHTSA suspension complaints for the 2024 Prologue, and many owners report the noise appearing within weeks of delivery. The CV joint boots or inner joint assemblies appear to be defective from the factory. Honda issued a Tech Line Summary Article on December 19, 2025, acknowledging the 'clicking or ratcheting type noise when turning' but directed dealers not to attempt repairs if no visible damage is found. Replacement axle parts have been backordered nationwide due to the volume of affected vehicles.

On the 2024 Honda Prologue Ultium front electric drive transmission module (FWD and AWD front unit), honda issued Product Update 25-013 for the 2024 Prologue covering inspection of the front electric drive transmission module bolts. A product update is a non-safety-recall service campaign Honda performs at no charge on the affected VIN population. During manufacturing, improperly sized bolts may have been used to install the motor mount on the front electric drive transmission module (the Ultium front drive unit), and the improper bolts may damage the drive unit case and cause an oil leak. Note that this is a Prologue-nameplate campaign; do not conflate it with the separate GM drive-module replacement programs issued for the Chevrolet Equinox EV and BrightDrop, which are different populations and different remedies even though the hardware family is shared. Owners should verify by VIN with a Honda dealer whether their car is in the 25-013 population.

On the 2024-2026 Honda Prologue, prologue owners in cold climates report the heat pump climate system failing to deliver cabin heat: the heater cycles itself on and off, blows ice-cold air in sub-freezing conditions, or stops working entirely. Dealer findings in documented owner cases point at the refrigerant circuit shared with the battery thermal system - low refrigerant charge in the heat pump, failed valves, and in one case a bent purge valve requiring hose and pipe disassembly and seal replacement. Repairs have been slow, with one lessee reporting the vehicle held at the dealer for approximately four weeks waiting on valve parts. Because the heat pump refrigerant loop is shared with high-voltage battery conditioning, a leak here can present as an HVAC complaint, a charging complaint, or both at once - owners have reported low refrigerant in the heat pump also affecting the charging system.

On the 2024-2026 Honda Prologue, separate from the recall that blanks the screens entirely, the Prologue's Radio Control Module produces a family of persistent connectivity and stability faults. Owners report wireless Apple CarPlay and Android Auto dropping out repeatedly - notably over rough pavement, which points at a connector or antenna seating issue rather than a phone problem - phones that will not pair or that vanish from the pairing list, the center display freezing when switching to the SiriusXM source, CarPlay disappearing from the menu entirely, and the wireless phone charging pad failing to charge or causing the system to stop recognizing a phone if the phone is placed on the pad before the vehicle is powered on. Honda has addressed portions of this in software: TSB 25-051 (A11 Radio Control Module Software Updates #1, July 30, 2025) specifically fixes the SiriusXM source-switch freeze along with volume and chime tuning and a missing 'BRAKE' message during front collision warning, and TSB 25-081 covers vehicle-wide programming.