Reading the Tucson battery label

The manual's Battery capacity label section explains each item on the label it illustrates:

From the Battery capacity label section of the 2026 Tucson owner's manual (code NX4), read November 10, 2026. The manual says the actual battery label in the vehicle may differ from the illustration.

For vehicles with a power liftgate, the same section notes that the power liftgate needs to be reset after the battery has been replaced.

AGM battery rules and Idle Stop and Go

Because the Tucson's labeled battery is an Absorbent Glass Mat (AGM) battery, these rules from the manual apply:

From the Battery recharging and Idle Stop and Go (ISG) sections of the 2026 Tucson owner's manual. The ISG section adds: use only a genuine Hyundai AGM battery for replacement, or the ISG system may not operate properly.

Tucson battery care from the owner's manual

For longer battery life, the manual says:

• 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 right away with a solution of water and baking soda.
• If the vehicle will not be used for an extended period, disconnect the battery cables.
• If you will not use the vehicle for a long time and it is cold enough for the battery to freeze, fully charge the battery and store it indoors.
• Always keep the battery fully charged to prevent battery case damage in low temperature areas, and never connect unauthorized devices to the battery.

Hyundai's maintenance schedule in the same manual lists battery condition as an inspection item every 8,000 miles or 12 months, and its at-least-once-a-year list includes cleaning the battery and terminals. Before winter, the manual says to inspect the battery and cables, since winter temperatures may affect battery performance; an authorized Hyundai dealer or a service station can check the charging level.

From the Battery, maintenance schedule and winter driving sections of the 2026 Tucson owner's manual.

How to recharge a Tucson battery

If the battery becomes discharged, the manual's first option is to run the engine for at least 60 minutes, driving or at idle. Alternatively, it says you may connect a fully automatic regulated charger; for the AGM battery, use only a fully automatic charger made for AGM batteries.

• Before maintenance or recharging, turn off all accessories and stop the engine.
• Keep flames, sparks and smoking materials away, and work outdoors or somewhere with plenty of ventilation.
• Wear eye protection when checking the battery during charging, and do not touch the battery.
• Never recharge the battery while the vehicle's battery cables are connected to it. The manual says to remove the battery from the vehicle and place it in a well-ventilated area.
• Watch the battery during charging, and stop or reduce the charging rate if the cells begin boiling violently.
• Remove the negative cable first and install it last. To disconnect the charger: turn off the charger main switch, unhook the negative clamp, then unhook the positive clamp.

From the Battery and Battery recharging sections of the 2026 Tucson owner's manual.

How to jump start a Tucson

The manual calls jump starting dangerous if done incorrectly; if you are unsure, have a service technician or towing service do it. Use only a 12-volt power supply (a battery or jumper system), never jump start a frozen battery, and do not try to push-start the vehicle. The manual's steps:

1. Position the vehicles close enough for the jumper cables to reach, without letting the vehicles touch. Keep away from fans and other moving parts in the engine compartment, even with the vehicles off.
2. Turn off all electrical devices such as the radio, lights and air conditioning. Put both vehicles in P (Park), apply the parking brakes and turn both vehicles off. Open the hood.
3. Identify the positive (+) and negative (-) terminals correctly to avoid a reverse-polarity connection.
4. Connect one jumper cable to the red, positive (+) battery terminal of your Tucson, and the other end to the red, positive (+) battery or jumper terminal of the assisting vehicle.
5. Connect the second cable to the black, negative (-) battery or jumper terminal of the assisting vehicle, and the other end to the chassis ground of your Tucson. Do not connect it to the negative (-) jumper terminal of the discharged battery: a spark could cause the battery to explode.
6. Start the assisting vehicle, let it run at about 2,000 RPM for a few minutes, then start your Tucson.
7. Disconnect the cables in the exact reverse order: your chassis ground, the assisting vehicle's negative (-) terminal, the assisting vehicle's positive (+) terminal, then your Tucson's positive (+) terminal.

Afterward, keep the Tucson running for at least 30 minutes at idle or driving; a completely discharged battery may need as long as 60 minutes of runtime to fully recharge. The Battery recharging section puts it this way: after a jump start from a good battery, drive for 30 minutes or idle for at least 60 minutes before shutting it off, or it may not restart. If it does not start after a few attempts, have it inspected by an authorized Hyundai dealer.

From the Jump Starting and Battery recharging sections of the 2026 Tucson owner's manual.

What to reset after a battery change or disconnect

The manual lists these items as possibly needing a reset after the battery has been discharged or disconnected:

• Auto up/down window
• Power liftgate
• Utility view
• Manual or automatic climate control system
• Integrated memory system
• Clock
• Infotainment system

Planning a battery check? Schedule service or see our battery service near elkhart.

From the Reset items section of the 2026 Tucson owner's manual. Items apply where your vehicle has them.

Hyundai of Goshen service hours

From Hyundai of Goshen's website, November 10, 2026. The website lists Monday to Saturday service hours and none for Sunday. Holiday hours can differ.