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What does it mean when the battery light comes on in a jeep grand cherokee?

If your 2018 Jeep Grand Cherokee battery warning light comes on while driving, be positive to turn off your accessories, so the battery doesn’t ditch further. The warning light usually means that the alternator isn’t working appropriately meaning you are operating solely on battery power.

Is it safe to drive my Jeep with battery light on?

While it is relatively safe for you, physically, to drive your car with the light on, it’s not safe for ensuring that you get to your destination without a breakdown, nor is it safe for the other components that may be affected by a weak battery, such as the alternator or computerized accessories.

What causes the battery warning light to come on?

An illuminated battery light could be due to a number of issues, including: A loose or corroded battery cable. A problem with the alternator or voltage regulator. Damaged cells or plates inside the battery.

Does battery light mean bad battery or alternator?

Basically, the light indicates a battery charging problem. If the light comes on and stays on while driving, this means that your alternator is running solely on energy stored in the battery. If you continue driving, your battery will eventually drain and your vehicle will stop working.

How do you reset the battery on a Jeep Grand Cherokee?

  1. Jeep Electronic Control Unit Reset. …
  2. Disconnect the battery by removing the positive battery cable. …
  3. Ground the positive cable to the negative cable for 30 seconds to erase the electric charge in the capacitors.
  4. Reconnect the positive cable to the battery.
  5. Turn the key to on but do not start.
  6. Turn the headlights on.

How long will my car run with the battery light on?

If you are asking how long can you drive with the battery light on, here’s a suitable response for you. You could manage to drive your car with the battery light on for an average of 15 minutes or thereabout. The battery light is a sign that either the battery or any of the components that link up with it is faulty.

Will the battery light come on if the battery is bad?

While it’s possible that the battery light indicates a failing battery, it’s not a given that this issue is the cause of the problem. It’s important to know that there are other factors that could cause the light to illuminate. Here are a few issues that could trigger an illuminated car battery light: Bad alternator.

How long will a battery last without an alternator?

How Long Will A Car Battery Last Without Alternator? A short-term battery could last as little as 30 minutes in these circumstances. As long as you stay out of trouble and keep driving as long as possible, the engine could take no longer than two hours.

Why is my battery light on but alternator is charging?

Your car battery or charging light on the dashboard of your car indicates a malfunction in the battery circuits or bad charging of the car battery. The light provides you with a warning when the charging system is not charging the battery with the right voltage.

How do I check my car alternator?

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  1. Get a multimeter.
  2. Set your multimeter to DCV (DC Volts) above 15.
  3. Make sure your alternator’s positive and negative terminals are clean.
  4. Put the multimeter’s black cable to the negative terminal and the red cable to the positive terminal.
  5. Look for an ideal alternator reading of around 12.6.

What are the signs of a bad alternator?

4 Symptoms of a Faulty Alternator

  • Car Won’t Start. A dead battery almost always lies behind a car that won’t start. …
  • Engine Stalling. A dead alternator almost always leads to a car that won’t start. …
  • Electrical Issues. A dying alternator can lead to a wide range of other electrical issues. …
  • Unusual Sounds.

What to do if battery light comes on while driving?

What should you do if the battery warning light comes on?

  1. Stop as soon as it’s safe to do so. …
  2. Continue to drive. …
  3. Faulty Alternator. …
  4. Broken Alternator Belt. …
  5. Damaged Battery or Cables.

Can a fuse cause battery light to come on?

The fuses may or may not cause problems with your vehicle’s battery charging system. There could, however, be a blown fuse between the battery and the alternator. This issue can cause the car’s battery light on. After that, you may wish to check for a broken serpentine belt and replace it if necessary.

How do I reset my Jeep Grand Cherokee?

How to Reset the Jeep Grand Cherokee Service Required Message

  1. Turn the ignition switch to the “ON” position without starting the vehicle.
  2. Press the gas pedal to the floor slowly three times within 10 seconds.
  3. Turn the ignition off. Wait 10 seconds and start the engine.

How do you reset the Jeep Grand Cherokee?

How to Reset the Jeep Grand Cherokee Service Required Message

  1. Turn the ignition switch to the “ON” position without starting the vehicle.
  2. Press the gas pedal to the floor slowly three times within 10 seconds.
  3. Turn the ignition off. Wait 10 seconds and start the engine.

How do I reset my Jeep computer?


  1. disconnect positive battery cable.
  2. disconnect negative batter cable.
  3. hold both cables together for 30 seconds.
  4. connect positive back up.
  5. connect negative.

How do I know when my car battery needs replacing?

How to Know When it is Time to Replace Your Car Battery

  1. 4 Signs It Is Almost Time For a New Battery.
  2. 1) Your Battery Struggles to Combat Seasonal Challenges.
  3. 2) Your Car Has Been Sitting For Too Long.
  4. 3) Your Vehicle Struggles When Starting.
  5. 4) Your Battery Is Older and Triggers a Dashboard Light.

What does battery indicator light mean?

The battery indicator illuminating on your dashboard means there is a charging issue, however, it does not necessarily mean that your battery is about to die. There are many reasons why it could come on, including: Loose battery cables. Corroded battery cables or terminals. Damage inside the battery.

What kills an alternator?

Running in full charge mode continuously can kill an alternator, so trying to have your new alternator try and charge your dead battery can result in immediate alternator failure.

Will the check engine light come on if the alternator is bad?

if you’re driving the vehicle when the alternator goes out, the vehicle will eventually stall. on modern vehicles, an undercharging charging alternator may result in an illuminated check engine light. it may also cause all kinds of problems with the onboard electronics and computer controls.

Can alternator drain battery?

Contrary to its purpose, an alternator can drain a battery. It’s rare, but it’s possible. A draw on the battery only occurs if there’s a problem with either a component in the alternator itself or connections to it.

Do I need a new battery or a new alternator?

If your engine won’t turn over or takes far longer than usual, it’s time to grab the jumper cables and attempt a jump-start. If your engine starts and stays running but won’t start again later, it’s likely a battery problem. If your vehicle immediately stalls, it’s probably a bad alternator.