Hyundai Elantra Owners Manual

Hyundai Elantra: Battery

Maintenance / Hyundai Elantra: Battery

This section summarizes terms of use for connected services and outlines user responsibilities for using the Hyundai Elantra’s features.

For best battery service

Hyundai Elantra: 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.
Rinse any spilled electrolyte from the battery immediately with a solution of water and baking soda.
If the vehicle is not going to be used for an extended time, disconnect the battery cables.

WARNING - Battery dangers

Hyundai Elantra: For best battery service. instructions carefully when handling a battery. Always read the following instructions carefully when handling a battery.

Hyundai Elantra: For best battery service. and all other flames or sparks away from the battery. Keep lighted cigarettes and all other flames or sparks away from the battery.

Hyundai Elantra: For best battery service. gas, is always present in battery cells and may explode if ignited. Hydrogen, a highly combustible gas, is always present in battery cells and may explode if ignited.

Hyundai Elantra: For best battery service. the reach of children because batteries contain highly corrosive SULFURIC ACID. Keep batteries out of the reach of children because batteries contain highly corrosive SULFURIC ACID. Do not allow battery acid to contact your skin, eyes, clothing or paint finish.

Hyundai Elantra: For best battery service. into your eyes, flush your eyes with clean water for at least 15 minutes and get If any electrolyte gets into your eyes, flush your eyes with clean water for at least 15 minutes and get immediate medical attention.

If electrolyte gets on your skin, thoroughly wash the contacted area. If you feel a pain or a burning sensation, get medical attention immediately.

Hyundai Elantra: For best battery service. when charging or working near a battery. Always provide ventilation when working Wear eye protection when charging or working near a battery. Always provide ventilation when working in an enclosed space.

Hyundai Elantra: For best battery service. battery can be harmful to the environment and human health. Dispose the battery An inappropriately disposed battery can be harmful to the environment and human health. Dispose the battery according to your local law(s) or regulation.

When lifting a plastic-cased battery, excessive pressure on the case may cause battery acid to leak, resulting in personal injury. Lift with a battery carrier or with your hands on opposite corners.
Never attempt to recharge the battery when the battery cables are connected.
The electrical ignition system works with high voltage. Never touch these components with the engine running or the ignition switched on.

Failure to follow the above warnings can result in serious bodily injury or death.

CALIFORNIA PROPOSITION 65 WARNING

Battery posts, terminals, and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer, birth defects and reproductive harm. Batteries also contain other chemicals known to the State of California to cause cancer.Wash hands after handling.

CAUTION

When you don’t use the vehicle for a long time in the low temperature, remove the battery and store it indoors.
Always charge the battery fully to prevent the battery case from being damaged in low temperatures.
If you connect unauthorized electronic devices to the battery, the battery may be discharged. Never use unauthorized devices.

Battery recharging

Your vehicle has a maintenance-free, calcium-based battery.

If the battery becomes discharged in a short time (because, for example the headlights or interior lights were left on while vehicle was not in use) jump start the vehicle from another battery and run the engine at least 20 minutes at idle before driving. Do not turn off the engine for 30 minutes total of idle and/or driving as the battery may not have sufficient recharge to start.

WARNING - Recharging battery

When recharging the battery, observe the following precautions:

The battery must be removed from the vehicle and placed in an area with good ventilation.
Do not allow cigarettes, sparks, or flame near the battery.
Watch the battery during charging, and stop or reduce the charging rate if the battery cells begin gassing (boiling) violently or if the temperature of the electrolyte of any cell exceeds 120°F (49°C).
Wear eye protection when checking the battery during charging.
Disconnect the battery charger in the following order.

1. Turn off the battery charger main switch.

2. Unhook the negative clamp from the negative battery terminal.

3. Unhook the positive clamp from the positive battery terminal.

WARNING

Before performing maintenance or recharging the battery, turn off all accessories and stop the engine.
The negative battery cable must be removed first and installed last when the battery is disconnected.
Operation related to the battery should be done in an authorized HYUNDAI dealer.

Reset items

Items should be reset after the battery has been discharged or the battery has been disconnected.
Auto up/down window (See section 4)
Sunroof (See section 4)
Trip computer (See section 4)
Climate control system (See section 4)
Clock (See section 4)
Audio (See section 4)

Proper battery care is essential to maintaining your Hyundai Elantra’s electrical systems and preventing inconvenient breakdowns. Corrosion on terminals, loose connections, or prolonged inactivity can all reduce battery life. Regular inspection and keeping the battery clean and dry helps maintain reliable starting power. It’s also important to avoid short trips that prevent full recharge, especially in colder climates. If storing the vehicle for a long period, disconnect the battery or use a maintainer to avoid drain. Always handle batteries with caution—electrolyte is corrosive, and hydrogen gas poses an explosion risk. Wear gloves and eye protection during maintenance and follow disposal regulations to avoid environmental harm. When charging, never leave the battery unattended and watch for signs of overheating. Understanding these precautions can prolong battery life and help avoid unexpected failures on the road.