Vehicle Information:Year/Make/Model: 2015 Honda Odyssey EX-L VIN: [XXX] Mileage: Approximately 45, 200 miles Component / Defect: Engine Oil Leak leading to Alternator Failure (Front Spool Valve / Valve Cover Gasket Leak onto Alternator) Summary of Incident and Service History: My car overheated and would not start on several occasions over the last year and a half starting in July 2025, leaving me stranded and requiring it to be towed. My car has been in service at the dealer multiple times for approximately 2 weeks each time. Oil Leak and Alternator Hazard: The vehicle experienced engine oil leaking directly onto/into the alternator. According to communications from Honda service personnel ([XXX]), oil leaking from the front spool valve and valve cover gaskets penetrates the alternator, causing component failure. The dealership explicitly warned that failure to complete these repairs would result in repeated alternator failure. XXX Service: The vehicle was brought in for diagnostic work and repairs at Brickell Honda Performed services included diagnostic procedures, engine oil & filter replacement, radiator fan motor replacement, A/C condenser fan motor replacement, and tire rotation. Total Paid: $2,443.60 Additional Repair Estimates Provided: Valve cover gaskets & spark plug replacement: $1,901.18 plus tax Front spool valve replacement: $1,641.70 plus tax Prior Related Invoices: An earlier invoice was issued on XXX for $2,096.29 by Brickell Honda for alternator replacement and other maintenance services. Safety Risk Statement: An unaddressed oil leak dripping onto the alternator poses a serious electrical component failure hazard while operating the vehicle. Sudden loss of electrical power while driving can cause engine stalling, loss of power steering, loss of headlights/lighting, and disablement in traffic, presenting a significant risk of collision and vehicle safety hazard. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
2015 Honda Odyssey: won't start
5 of the 208 complaints about the 2015 Honda Odyssey describe won't start.
- owner complaints
- 5
- of this car's complaints
- 2%
- recalls
- 0
Won't start by model year
What owners say
Car continues to lose complete battery power. Battery has a charge but will not start the car. Vehicle is in park but completely dead. Nothing was left on in the interior to drain power. No after model additions to the vehicle.
When using the push button to start my car the car randomly won't start. Lights come on the dash but the engine doesn't turn over. I have taken my car to the dealer and they cannot identify anything wrong. I have children and having a car that won't start randomly makes my day really stressful. I never know if my trip to run errands, get groceries or to pick up my kids will be followed by my car not starting. This car is really unreliable in its current state. What frustrates me the most is honda had a recall that addressed this problem in older models yet my car model and year haven't been recalled.
Push start would not start the engine, nor turn on the electrical system. After juggling the wheel, and the shift lever & brake pedal the car starts. This has happened many times, although the dealer states the computer has no in the dtcs system.
Had problems starting the vehicle earlier in the day - info display showed a warning about multiple systems and wouldn't start the engine. Honda investigated, no fault found, but "two cells in battery low." they provided a probable cause of "some light left on in the car which drained the battery" (which we knew not to be the case). Same fault occurred after leaving dealership, turned off and on a couple of times, and then it restarted. Driving home at approximately 45mph the car turned itself off - no power steering assist and no gas pedal. Managed to wrestle the car to the side of the road. Managed to start vehicle again after 5 - 10 minutes, but towed to the dealership this time.
Service bulletins that may apply
- The piston ring function deteriorates due to ring low wear toughness and sticking from sludge
- Owner Notification Letter
- The piston ring function deteriorates due to ring wear and sticking from sludge
- The piston ring function deteriorates due to ring low wear toughness and sticking from sludge
- Dealer Message
- Dealer Message
- The front rocker arm oil control valve is leaking.
- Dealer message
Related recalls
No recalls on record for this model year.
Questions about the 2015 Honda Odyssey won't start
Is won't start a common problem on the 2015 Honda Odyssey?
5 of 208 owner complaints about the 2015 Honda Odyssey (2%) mention won't start. The model year with the most reports is 2025.
Is there a recall or service bulletin for this on the 2015 Honda Odyssey?
There are 0 recalls and 19 service bulletins for the same area of the car. Check them below with your VIN.
Other symptoms on the 2015 Honda Odyssey
Check engine light 23Misfire 22Sunroof shattered 15Jerking 14Harsh shifting 10Loss of power 7No deployment 5Headlights 5Oil consumption 5
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