This bulletin applies to all Honda models equipped with one-push start.
When you shift the vehicle into PARK and turn off the engine, does the power mode stay in ON or ACCESSORY? The likely cause is a misadjusted shift cable.
If not adjusted correctly, the shift cable puts pressure on the shift lever, keeping the park pin switch from operating. The power control unit needs the park pin switch position input to switch the power mode to VEHICLE OFF (LOCK).
To find and fix this problem, connect the an appropriate scan tool and go to the ONE-PUSH START/PCU Data List. Scroll down to AT SHIFT POSITION P and AT SHIFT POSITION P-PIN.
Shift into PARK while keeping your foot on the brake pedal. Then, without pressing the release button, pull back on the shift lever (toward reverse). The AT SHIFT POSITION P signal should read ON and the AT SHIFT POSITION P-PIN signal should read OFF.
Another test is to shift the vehicle into reverse while pressing the brake pedal. Then press the release button and gently push the shift lever into Park. When it goes into Park, the AT SHIFT POSITION P signal should then read ON and the AT SHIFT POSITION P-PIN signal should read OFF.
