Hyundai electric vehicles come equipped with not only a large battery system for the powertrain but also a small 12-volt battery for accessories and starting the vehicle. In the event of abnormal draining of the 12-volt battery while the vehicle is off, the car will automatically disconnect it to prevent further draw.
When this occurs, it may hinder the unlocking of the vehicle with the key fob or starting the vehicle using the Start button. However, there are steps you can take to resolve this issue.
Using the Mechanical Key
If you find yourself unable to unlock your vehicle with the key fob, you can access the mechanical key within the fob itself. Simply press the release button located at the bottom of the key fob and pull out the key. With the key in hand, remove the lock cover on the door handle and insert the mechanical key, rotating it to unlock the door.
Resetting the 12-Volt Battery
Once inside the vehicle, locate the 12-volt battery reset switch on the panel to the left side of the steering wheel. Press the switch within 15 seconds to initiate the reset. If you need more time, simply press the switch again. After resetting, it is advised to drive the vehicle for 30 minutes or let it sit in Ready mode in an open space for the same duration, allowing the 12-volt battery to safely charge.
Following these steps will ensure that your Hyundai electric vehicle is ready to be back on the road without any battery-related issues.
For more detailed instructions and helpful information regarding your Hyundai electric vehicle, you can explore the how-to guides available on the HyundaiUSA YouTube channel and MyHyundai.com.
What are the two battery systems in a Hyundai electrified vehicle?
A Hyundai electrified vehicle has a larger battery system that is part of the powertrain and a small 12-volt battery for accessories and starting the vehicle.
What happens if the vehicle detects abnormal draining of the 12-volt battery while the vehicle is off?
The vehicle will automatically disconnect the 12-volt battery from the vehicle to prevent further drain, which may prevent unlocking the vehicle with the key fob or starting the vehicle using the Start button.
What should be done if the 12-volt battery is disconnected and prevents unlocking or starting the vehicle?
To unlock the vehicle, use the mechanical key in the key fob. To start the vehicle, use the battery reset feature and follow the specified steps.
How can the 12-volt battery be reset and the vehicle started?
Press the release button on the key fob to access the mechanical key. Use the mechanical key to unlock the door and then press the 12-volt battery reset switch inside the vehicle. Once inside, start the vehicle within 15 seconds using the battery reset switch.
What should be done after using the battery reset feature to start the vehicle?
Drive the vehicle for 30 minutes or let it sit in the Ready mode for the same amount of time to allow the 12-volt battery to safely charge.
Where can more information on Hyundai be found?
For more helpful information on your Hyundai, explore the how-to guides on the HyundaiUSA YouTube channel and MyHyundai.com.