Nissan Sentra B18 (2020-2025) Owner's Manual: Jump starting

To start the engine of your Nissan Sentra using a booster (jump) battery, all instructions and safety precautions listed below must be followed carefully. Incorrect procedures may cause damage to the electrical system or result in serious injury.

WARNING

• If performed incorrectly, jump starting can cause a battery explosion, which may result in severe injury or death. Improper jump starting can also damage your Nissan Sentra.
• Explosive hydrogen gas is always present in and around the battery.

  Keep sparks, flames, cigarettes, and other ignition sources away from the battery area at all times.

• Do not allow battery fluid to come into contact with eyes, skin, clothing, or painted surfaces. Battery fluid contains corrosive sulfuric acid and can cause severe burns. If contact occurs, immediately flush the affected area with plenty of clean water.
• Keep batteries and battery-related equipment out of the reach of children.
• The booster battery must be rated at 12 volts. Using a battery with an incorrect voltage may damage the electrical components of your Nissan Sentra.
• Whenever working on or near a battery, always wear appropriate eye protection (such as safety goggles) and remove rings, watches, metal bracelets, or other jewelry. Do not lean over the battery during jump starting.
• Do not attempt to jump start a frozen battery. A frozen battery may explode and cause serious injury.
• Your Nissan Sentra is equipped with an automatic engine cooling fan that may activate at any time. Keep hands, tools, and loose clothing away from the fan.

WARNING

Always follow the instructions below exactly.

Failure to follow these procedures may result in damage to the charging system or cause serious personal injury.

1. If the booster battery is installed in another vehicle, position the two vehicles so the batteries are close enough for the jumper cables to reach.

Do not allow the two vehicles to touch.

2. Apply the parking brake on both vehicles. Move the shift lever to N (Neutral) for Manual Transmission models or to P (Park) for Continuously Variable Transmission (CVT) models. Turn off all unnecessary electrical systems such as headlights, audio system, heater, and air conditioner.

3. Place the ignition switch in the LOCK or OFF position.

4. Connect the jumper cables in the sequence illustrated ( A , B , C , D ).

CAUTION

• Always connect the positive (+) cable to the positive (+) battery terminal first. Connect the negative (−) cable to a suitable body ground (such as a strut mounting bolt or engine lift bracket), not directly to the battery.
• Ensure that jumper cables do not contact any moving parts in the engine compartment and that the cable clamps do not touch any unintended metal surfaces.

5. Start the engine of the booster vehicle and allow it to run for several minutes.

6. Maintain the booster vehicle engine speed at approximately 2,000 rpm, then attempt to start the engine of the Nissan Sentra with the discharged battery.

CAUTION

Do not operate the starter motor for longer than 10 seconds at a time. If the engine does not start immediately, turn the ignition switch to the OFF position and wait 3 to 4 seconds before attempting again.

7. Once the engine has started, carefully disconnect the jumper cables in reverse order, beginning with the negative cable and then the positive cable.

Push starting

CAUTION

• Do not attempt to push start this vehicle. Doing so may damage the three-way catalytic converter.
• Nissan Sentra models equipped with a Continuously Variable Transmission (CVT) or Manual Transmission (M/T) cannot be push-started or tow-started. Attempting these methods may cause serious transmission damage.
• For Manual Transmission (M/T) models, never attempt to start the vehicle by towing. If the engine starts suddenly, the vehicle may surge forward and collide with the towing vehicle.

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