One problem related to alternator/generator/regulator has been reported for the 2018 Honda Odyssey. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2018 Honda Odyssey based on all problems reported for the 2018 Odyssey.
When the fob is stored near the vehicle it creates a power drain on the battery. We were camping for the weekend and the fob was generally near the vehicle (in the camper). When we left the campground at the end of the weekend, the warning indicator said not to use any auxiliary power. I am not sure how the vehicle uses the battery vs the engine or alternator to power the interior outlets, usb charging ports, and other things like the dvd/res system, but the previous power outage in the vehicle has us on high alert and we feel it is relevant as it indicates a pattern of power failure and insufficient battery or power supply to the vehicle relative to the voltage it pulls with the "bells and whistles" on the car. The warning remained for the entire 3 hour drive home.
| Electrical System problems | |
| Anti-theft Controller problems | |
| Battery Dead problems | |
| Horn Assembly problems | |
| Alternator/generator/regulator problems | |
| Starter problems | |
| Instrument Cluster/panel problems | |
| O2 Sensor problems | |
| Wiring problems |