Which parts fail
Components named in complaints (battery, alternator, wiring, ignition, instrument cluster, infotainment).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2012 Honda Odyssey owners, lightly cleaned up (personal details are redacted by NHTSA).
On Wednesday night, the battery light initially came on and after a few minutes the van had this burning smell so I pulled over and the alternator was on fire. I put it out with several bottles of water from papa John's. Today, at Boyd Honda in Oxford said in the diagnosis that there was a sweeping spool valve that had leaked which must have caused the alternator to blaze because this is a manufacturer's defect from Honda.
The contact owns a 2012 Honda Odyssey. The contact stated that while the vehicle was parked or while driving at undisclosed speeds, the clock on the vehicle was flashing, causing a distraction to the driver while driving. The contact stated that the flashing of the clock was controlled by satellite GPS, and the system could not be reset. The dealer was contacted. The failure mileage was approximately 180,000.
Odometer Fraud. The contact purchased a 2012 Honda Odyssey. The contact stated that while attempting to register the vehicle, it was discovered that there was a mileage discrepancy. The vehicle was a private sale. At the time of purchase, the vehicle mileage was 130,000, and at the time of registration, it was discovered that the mileage was 230,000. Local authorities had been notified.
The 2012 Honda odyssey alternator caught on fire after the battery light came on which luckily I, the driver, was able to put out. The next day I towed the vehicle to Boyd Honda Auto in Oxford, NC, where they confirmed with diagnostic that the alternator was overworking and that there was a seeping spool valve. This seeping spool valve is a manufacturer's defect.
The contact owns a 2012 Honda Odyssey. The contact stated while driving 30 MPH, several unknown warning lights were illuminated on the instrument panel. The vehicle was taken to an independent mechanic, who diagnosed a failure with the alternator. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 132,000.
Odometer Fraud. The contact purchased a 2012 Honda Odyssey. It was discovered that there was a mileage discrepancy. The vehicle was a private sale. The vehicle mileage was 117,000 at the time of purchase; however, the title listed the mileage at 14,580. The Department of Motor Vehicle reported that the actual mileage as 214,000.
Odometer Fraud. The contact purchased a 2012 Honda Odyssey. The contact discovered that there was a mileage discrepancy after the purchase. The vehicle was a private sale. At the time of purchase, the vehicle mileage was 80,000. It was later discovered, after checking the Carfax report that the mileage was 285,000.
The contact owns a 2012 Honda Odyssey. The contact stated that while starting the vehicle and while driving at an undisclosed speed, the radio screen displayed "0:00", and the navigation system was inoperable. The manufacturer was notified of the failure by phone. The failure mileage was approximately 190,000.
While driving on Thursday, 18 April 2024, the CHECK CHARGE SYSTEM alert and warning light came on in my 2012 Odyssey. I was able to get to a garage that was a few miles away, but the electrical system gave out about 1/4 mile from the garage. I was able to shift into neutral and coast into the parking lot. The dash lights were all off and the electrical system had stopped working. When I tried to exit the vehicle, I could not open the driver door. The lock was frozen in place and wouldn't budge. I was able to pull the handle, but it did not unlatch or open the door. The power lock buttons did not work either. I tried all the other doors and it was the same situation. I was literally trapped inside my minivan. Someone tried opening it from the outside and that did not work as the doors had auto locked due to driving. …
Prior to the problem, the radio cut off, various lights (battery, abs, etc) lit up and Check System warning light appeared. The car remained running for approximately 10 miles although stepping on the accelerator did not always result in increased speed. Touching the brake caused the RPM gauge & speedometer to immediately drop to zero and removing my foot from the brake immediately resulted in both gauges resuming correct reading. Eventually, the car ceased to function and I removed the key. Then I tried to exit the vehicle. None of the doors would open and I remained in the car until my wife arrived with a spare set of keys which opened the door. A mechanic later determined the alternator needed replacement. Had I not had a mobile phone to call someone, I might still be there. Had the weather been either extremely hot or cold the consequences could have been life threatening
Electrical complaints in other Odyssey years
Frequently asked questions
How common are electrical problems on the 2012 Honda Odyssey?
NHTSA has 37 complaints about the electrical system of the 2012 Honda Odyssey, 15% of the model year's 245 complaints. The component named most often is instrument panel › speedometer/odometer (3 mentions).
Is there a recall for 2012 Honda Odyssey electrical problems?
No. NHTSA lists no electrical system recall for the 2012 Honda Odyssey, though it has 5 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2012 Honda Odyssey electrical problems start?
Half of the complaints with a recorded mileage happened before about 70,000 miles, and 23% before 25,000 miles.
Is it dangerous?
Owners linked 0 crashes, 4 fires and 2 injuries to electrical system problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.