general problems of the 2012 Honda Crosstour

An aftermarket ignition interlock device (intoxalock elert model) installed in my vehicle repeatedly malfunctioned and disabled the vehicle’s ignition system, preventing the vehicle from starting and operating normally. The device was installed on October 6, 2025 as part of a state ignition interlock program. The first malfunction occurred only four days later. The device has malfunctioned multiple times since installation. The most serious failure occurred in March 2026 when the device would not power on at all. Because the device controls the ignition relay, the vehicle could not start and became completely inoperable. The vehicle had to be towed to the service center that installed the device. The component involved appears to be the ignition interlock handheld breath testing unit and relay system that communicates with the vehicle ignition. When the device fails to power on or function properly, the vehicle cannot start even when the driver is sober and compliant. This malfunction created a safety concern because the vehicle could not be operated or moved when needed, leaving the driver stranded and unable to safely transport family members. The problem has occurred multiple times and appears to be related to the device itself rather than the vehicle. The equipment has been returned to an authorized service center for inspection, and the device should be available for inspection upon request. There were no warning lights from the vehicle itself prior to the failure. The primary symptom was that the ignition interlock device would not power on or would malfunction during operation, which prevented the vehicle from starting. Because the ignition interlock device directly controls whether the vehicle can start, repeated device failures create a situation where the vehicle becomes unexpectedly disabled.