Honda Odyssey has a Screw Loose
This bulletin applies to 2016 Honda Odyssey and Pilot and 2017 Accord, Odyssey, Pilot and Ridgeline. While driving, the customer may experience flickering interior/exterior lights, multiple indicators, possible other voltage-related fluctuations and jerky steering. The B+ sensing screw on the alternator may not be properly torqued.
Disconnect and isolate the negative cable with the battery sensor from the battery. Remove the #4 spark plug ignition coil for better access. Disconnect the alternator connector. Remove the alternator rear cover and torque the B+ sensing screw to specified value of 1.5 ft.-lbs. (2 Nm) using a stubby Phillips #2 screwdriver. Do not over-torque.
Reinstall the alternator rear cover and tighten screws to 3.3 ft.-lbs. (4 Nm). Connect the negative cable and battery sensor to the negative battery post. Perform a DTC check and clear any DTCs.