Hybrid Voltage Battery Fail * Car will not start *

My dealer told me that there were issues with early delivery cars but that they had been addressed/remedied, whatever that means. Have you contacted your dealer?

 

If it's in your garage and it still has power then either put the windows down or leave the driver's door open in case of a total power failure before the Ferrari Assist operator gets to you. Make sure you have the emergency folding metal key to hand and not in the car just in case the car dies totally and the doors are closed. You will need that key to get into it.

It should have a lead acid battery being a July 23 build so the breakdown guy may be able to jump start it. If it won't start then it's a case of going into the toolkit in the frunk and getting out the special tool to put the gearbox into neutral then pushing the car out so it can be winched on to a recovery truck. The fault codes will have to be cleared down one by one which can only be done at the dealership I believe as part of a diagnostic check. They will then be able to put the car back on charge and top up the high voltage battery. They will likely want you to put your battery charger in the car if it is recovered to the dealer so they can check it.

My GTB did the same thing but it also fully discharged the 12V battery as well. It sounds like you have managed to catch yours before it got to that point.

 

What was the reason your 12V battery discharged?

 

I don't know and neither did the dealership. They cleared the fault codes, charged it up overnight and it didn't happen again.

 

Wow that's kind of scary. How can someone confidently take the car anywhere when something like that happens? SHEESH

 

That's crazy. Seriously.

 

Looks like this?
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Have you tried disconnecting the charger, lock the car and wait for it to power down fully (switch it off and wait at least 5 minutes for every dash light to go out) then plug the charger back in and switch it on at the wall? If it accepts a charge the dash should power up and the charger will have two flashing blue lights. I doubt it will make a difference if the car is displaying the various fault messages you described earlier but worth a try. I was told that if the car detects a power spike via the charger it will protect itself by discharging power back into the grid via the charger and wall socket hence why the high voltage battery becomes totally discharged.

 

If that's the case then maybe the charger should be plugged into a surge protector?

 

Definitely not confidence inspiring--these brick episodes keep happening----first the SF90 and now the 296. I live 300 miles from the dealer, ugh. My car will be delivered end of first quarter 2024 if I am extremely lucky.

 

We have an auxiliary generator to provide emergency power to my house, since we live in an area with frequent hurricanes,. It powers up for 15 minutes one day a week, which means that a momentary power loss and power spike is created as it takes over the power. I wonder if this will set upset the 296 power charger or cause the car's system an issue? Any thoughts would be appreciated.

 

I think this could very much be part of it. The whole electrical system seems very sensitive to the stability/ quality of the power supply and may well be shutting itself down to protect itself and then throwing up the faults. It is a mad situation with a car this expensive. Keep it off the charger and drive it regularly and see if that helps.

 

I'd ask your dealer for advice. Perhaps fitting a surge protection wall socket would help or disconnect your car on the day the generator cycles through it's test power up. My dealer advised me to keep my car plugged in when not in use but with the app you can see when the high voltage battery is dropping in power and then plug the car in and charge it back up for a few hours. It will be better for owners who drive their cars infrequently when Ferrari roll out the app in the US. The app appears to update a couple of times a day and it will send alerts to your phone if the system drops below a certain level.