Hyundai Elantra: Battery / Battery capacity label

For Best Battery Service

Keep the battery securely mounted. Keep the battery top clean and dry. Keep the terminals and connections clean, tight, and coated with petroleum jelly or terminal grease...

Battery Recharging

WARNING Always follow these instructions when recharging your vehicle’s battery to avoid the risk of SERIOUS INJURY or DEATH from explosions or acid burns: Before performing maintenance or recharging the battery, turn off all accessories and place the ignition switch to the LOCK/OFF position...

Other information:

Hyundai Elantra (CN7) 2021-2025 Owner's Manual: Function settings

Setting Forward Safety With the engine on, select or deselect ‘Driver Assistance → Forward Safety’ from the Settings menu to set whether or not to use each function. -- If ‘Active Assist’ is selected, the function will warn the driver with a warning message and an audible warning depending on the collision risk levels...

Hyundai Elantra (CN7) 2021-2025 Owner's Manual: Start-up

You can start the engine without inserting the key. Information If the smart key is not moved for some time, the detection function for smart key operation will pause. Lift the smart key to activate the detection again. NOTICE To prevent damaging the smart key: Keep the smart key away from water or any liquid and fire...