So, the doors must be opened or closed manually until you replace a new battery. A passive transponder controls the immobilizer. Here passive indicates that the transponder in the key doesn’t require its own power source. Now, if your key fob with the start/stop button isn’t working and no option to insert a key, then try placing your key fob closest to the start/stop button as much as you can and then start the vehicle. If it doesn’t work, then make sure to manually place the key fob depending on the model of your EV.
Please Note: You can also use a secondary key to start your iONIQ 5/6 EV. It’ll also ensure whether your key fob has some issues or physically damaged or not.
3. Blocked Fuel Filter
It’s also possible that somehow the fuel filter of your iONIQ 5/6 becomes blocked such as any of the mechanical parts gets clogged by dirt over a period of time. If in case, the fuel filter is too dirty, it’ll no longer perform properly at its full capacity and the engine will no longer run like a new one (especially if the car isn’t that old). So, you should change the fuel filter instead of cleaning.
4. Failure of the Fuel Pump
Once your iONIQ’s fuel pump becomes failed, the engine won’t start. It looks like that the fuel pump basically ensures that the required quantity of fuel is passed from the tank to the injection system of the engine with sufficient pressure. So, prior the fuel pump stops working, it mostly becomes recognizable if your EV’s engine breaks down. You should check the pump.
Physical damage or wear & tear of the fuel pump can be one of the possible reasons for this. If in case, the pump is leaking or a power contact is broken or a pump lever is broken then the fuel pump might fail. If so, make sure to replace the fuel pump.
5. Blown fuse
Sometimes issues with the blown fuse might also trigger the breakdown issue of your iONIQ 5/6. Make sure to check all fuses in the fuse box to be able to start the engine. Be careful to touch the fuse box without any knowledge and get it checked by a professional technician in a workshop.
6. Defective spark plugs
Your iONIQ 5/6 EV might have defective spark plugs which can lead to the engine not starting issue. So, without functioning spark plugs, your EV won’t go into the drive mode. Sometimes issues with the plug connections on the ignition system might trouble a lot. It should also be replaced in the workshop.
7. Rodent Damage
Although EV manufacturers won’t cover warranty with the rodent damage (rats and mice) unless you can give enough proof with the damage that happened before purchasing the iONIQ 5/6 car. However, the car insurance will cover rodent damage if covered. So, you can file a claim for the same. Whenever rats and mice gets into the vehicle unexpectedly and then bite through cables or wires.
It can affect fuel supply, oil supply, or power supply as well. The rodent damage might be seen by sneaking into the engine compartment. Such damage can be caused by the rodent bite which is easily recognizable and repaired.
8. Engine failure
It’s quite a rare case for the EV vehicles these days but nothing is impossible and your iONIQ 5/6 EV’s engine might breakdown sometimes. If that happens, you should visit the workshop to get it checked and repaired. Overheating of the engine, continuous driving in a specific speed, incorrect fueling, not enough oil, or hydro-lock can trigger engine failure.
9. Use an OBDII Scanner for Diagnosis
As the Hyundai iONIQ 5 or iONIQ 6 Electric vehicle includes onboard diagnostics (OBD) feature to detect crashes, failure, or other potential damage to the car, you can easily run the scanner to diagnose the issue and take necessary steps to fix the same. Even if you’re not sure which particular part is having an issue, it can easily detect and let you know after scanning. To do so:
- Ensure to connect the diagnostic tool to your iONIQ 5/6 EV first.
- Now, use the dashboard interface to turn on the OBDII scanner.
- Do keep in mind that you should hit the ignition turned on and the wire is connected. [DO NOT START THE ENGINE]
- Your diagnostic scanner or feature might ask you to run the scanning process or ask some info about the EV.
- So, ensure to provide 100% correct information about your vehicle and model to work the scanner properly.
- If in case, it asks for the vehicle manufacturer and model details with the engine or vehicle ID number then provide the same correctly.
- Let the diagnostic process to complete and then do the necessary steps to fix the specific issue.
That’s it, guys. We assume this guide was helpful to you. For further queries, you can comment below.
My Ioniq 5 (10/23) suffers the same problem now and then. The dashboard lights normally up, but impossible to get it into drive or reverse, not even shutting it down. By waiting 5-10 minutes it suddenly comes alive, but you should expect better on a brand new car. I had my car back to the dealer 2 times they examined it, updated the software, but still the same problem. They clame the problem is unknown to them. Previously I had the Kona Electric for 3 years without these symptoms. But what is the talk about clogged fuel filters, spark plugs etc about? My car is totally electric as far as I know. I didn’t know about any fossil versions of the vehicle.