Chrysler Pacifica Auto Start Stop Warning Light

Driving a Chrysler Pacifica can be a great experience, but it may also come with its share of warning lights. One of the most common ones is the Chrysler Pacifica Auto Start Stop Warning Light. This light typically indicates that there’s an issue with the way your vehicle is starting or stopping, and it can cause some major headaches if not addressed properly. In this blog post, we will discuss what the Auto Start Stop Warning Light means for Chrysler Pacifica owners and how to address it. We’ll cover topics such as what causes the light to come on, what steps you need to take when it does activate, and more. Read on to learn everything you need to know about this important safety feature in your Chrysler Pacifica!

What is the Chrysler Pacifica Auto Start Stop Warning Light?

What is the Chrysler Pacifica Auto Start Stop Warning Light
What is the Chrysler Pacifica Auto Start Stop Warning Light?

The Auto Start Stop System, also known as the Idle Stop-Start System (ISS) or Micro Hybrid Technology, is a fuel saving technology that automatically turns off an engine when it is not being used. It works by shutting down the engine after the vehicle has come to a complete stop and restarting it again when required. This system is designed to reduce emissions and improve fuel economy, resulting in cost savings for vehicle owners.

When your car comes to a stop at a red light or in traffic queues, this system will sense the change in speed and shut off your engine automatically. Once you press the accelerator pedal again, however, the system will detect this movement and automatically start up your engine again so you can drive away from where you stopped. In order for this technology to work optimally there must be enough charge left on your battery for your car’s starter motor to kick into action when needed; otherwise some additional energy may be necessary before driving away from where you stopped.

This Auto Start Stop System helps improve overall efficiency both on short trips around town as well as long highway drives since it cuts out unnecessary idling time during stops which reduces fuel consumption significantly over time. The reduced strain on components such as spark plugs due to fewer starts also increases their useful life span further improving costs savings for consumers over time With improved air quality due to lower emissions of pollutants like nitrogen dioxide (NO2) associated with idling engines also makes this auto start stop system beneficial even beyond its original intent of reducing fuel costs alone making it an attractive feature especially among eco-conscious drivers today!

The Chrysler Pacifica Auto Start Stop Warning Light is a feature that helps to improve fuel economy by automatically shutting off the engine when the vehicle is not in use. The light will come on when the engine is turned off and will stay on until the vehicle is moving again. This is a great feature for those who are looking to save money on fuel costs, but it can be confusing for some drivers. Here’s what you need to know about the Chrysler Pacifica Auto Start Stop Warning Light.

What Does It Mean When the Chrysler Pacifica Auto Start Stop Warning Light Is On?

What Does It Mean When the Chrysler Pacifica Auto Start Stop Warning Light Is On
What Does It Mean When the Chrysler Pacifica Auto Start Stop Warning Light Is On?

If the Chrysler Pacifica Auto Start Stop Warning Light is on, it means that the vehicle’s engine may stop running while the vehicle is in motion. This can happen if the engine is not getting enough fuel, or if there is an issue with the vehicle’s battery. If this happens, the driver will need to pull over and turn off the engine.

The Auto Start Stop Warning Light on your Chrysler Pacifica indicates that there is an issue with the vehicle’s auto start/stop system. This system automatically turns off the engine when stopped at a red light or in traffic, and then restarts it again when you release the brake pedal to move forward. If this warning light is illuminated, it means that the system has detected an issue and needs to be inspected by a qualified technician for repair.

What to Do if the Chrysler Pacifica Auto Start Stop Warning Light Comes On

What to Do if the Chrysler Pacifica Auto Start Stop Warning Light Comes On
What to Do if the Chrysler Pacifica Auto Start Stop Warning Light Comes On

If the Chrysler Pacifica Auto Start Stop Warning Light comes on, it is important to take action immediately. The first thing to do is to check the oil level and make sure it is full. If the oil level is low, add oil as needed. Next, check the battery terminals to make sure they are clean and free of corrosion. If they are dirty or corroded, clean them with a wire brush. Finally, check the fuse box for any blown fuses. If any are found, replace them with new fuses.

The Chrysler Pacifica Auto Start Stop Warning Light is an essential component of your vehicle’s safety system. It helps you to know when the auto start stop feature is not working and gives you time to take corrective measures. Always be sure to pay attention when this light comes on so that you can address any issues with the auto start stop system as soon as possible. By doing so, you will ensure that your car stays safe and reliable for many years to come.

Rate this post

8 thoughts on “Chrysler Pacifica Auto Start Stop Warning Light”

  1. The auto start/stop on my 2021 Chrysler Pacifica message comes on and indicates that the battery is not charging. The warning light does not come on. I’ve had my van in 3 times to ge fixed. The auto start/ stops works for about 3 or 4 days then it stops working.

    • Sorry to hear about your recurring issue with the auto start/stop function on your 2021 Chrysler Pacifica. If the system is indicating that the battery is not charging, there might be a few potential reasons. Please consider the following:

      Battery Condition: If the battery is old, not in a good condition, or doesn’t have sufficient charge, the auto start/stop function may not work correctly. Even if a battery isn’t old, it can still develop problems if it’s been drained completely or near-completely multiple times.

      Alternator Issue: The alternator might not be charging the battery as it should. This would mean the battery isn’t at fault, but the alternator is. A faulty alternator can be diagnosed by a mechanic.

      Software/Firmware Issue: There may be a software or firmware glitch in the vehicle’s systems that control the auto start/stop functionality. This might be resolved by a software update provided by Chrysler, if available.

      Sensor Issue: If any of the sensors that the auto start/stop system relies on are faulty, the system might not work properly. A comprehensive diagnostic test can help identify if this is the problem.

      Specific Requirements Not Met: Remember that certain conditions need to be met for the start/stop system to engage: the battery must be adequately charged, the engine must be warmed up, the outside temperature must be in a certain range, etc. If these aren’t met, the system might not function as expected.

      As you have already taken the vehicle in for repair several times, it might be helpful to discuss these specific areas with the service technician. Ask them to particularly investigate the health of the battery and alternator, and to check for any software or sensor issues.

      Remember, persistent issues might be a sign of a manufacturing defect. If you’re in the United States and your vehicle has been in for the same repair multiple times without success, you might want to look into your state’s Lemon Laws for recourse. In any case, keep a record of all repair attempts and communicate your concerns to Chrysler directly if necessary.

  2. My 2019 Pacifica had the auto start/stop warning about a month ago. Autozone read the codes and it was a simple esim error. I replaced it and had no problems since, until yesterday. The warning came on again but this time they are unable to get a code when the plug in for diagnosis. The system shows no faults/error messages. Kinda hard to make a repair without knowing what is wrong. Do you have any thoughts/suggestions?
    Thanks for the help.

    • Sure, I'd be happy to help you troubleshoot this issue.

      The Auto Start-Stop feature in your Chrysler Pacifica is managed by a network of sensors and modules that communicate with each other. If one of these components is not functioning correctly, it can cause the warning light to come on, even if no diagnostic trouble codes (DTCs) are being shown.

      Here are a few things you can check:

      1. Battery Health: The Auto Start-Stop feature relies heavily on the battery. If the battery is old or weak, it might not be able to provide the necessary power for this system to function correctly, causing the warning light to illuminate. You can have the battery tested at Autozone or any other auto parts store.

      2. Alternator: The alternator also plays a significant role in providing power to the system. If it's not functioning correctly, it can cause the warning light to come on.

      3. Faulty Sensors: There might be an issue with one of the sensors that the Auto Start-Stop system relies on, such as the brake pedal sensor or the transmission sensor. If these sensors are faulty, they might not be able to send the correct information to the system.

      4. Software Update: In some cases, a software update to the vehicle's computer systems might resolve the issue. You could ask your dealer if there are any available updates for your vehicle.

      5. Transmission Fluid: Low transmission fluid levels can cause issues with the Auto Start-Stop system. Check to see if your vehicle's transmission fluid level is within the recommended range.

      If you've gone through all of these checks and still haven't found the issue, I recommend taking your vehicle to a Chrysler dealership or a certified mechanic for further investigation. They have specialized diagnostic tools that can help determine what's causing the warning light to come on. I hope this helps, and please let me know if you have any other questions!

  3. I have a 2019 Chrysler Pacifica that has been having trouble with the Auto Stop/Start system. The warning light comes on a lot and it keeps draining the battery. I’m on my 3rd 12 volt battery in 3 years. And I’ve had to replace the main battery twice in 3 years also. I’ve taken it to a Chrysler dealership and they also couldn’t fix it. I’ve emailed @Chrysler Cares and they haven’t responded. So does this mean I’m stuck with a vehicle that cant be fixed? Of all the vehicles I’ve purchased, this is by far the absolute worse choice I’ve ever made!!

    • I'm sorry to hear about the issues you're experiencing with your 2019 Chrysler Pacifica. The Auto Stop/Start system is designed to save fuel and reduce emissions, but if it's malfunctioning, it can indeed cause issues like the ones you've described.

      Here are a few suggestions and potential solutions:

      1. Battery Quality: Ensure that the batteries you're using, both the 12-volt and the main battery, are of high quality and are recommended for your specific vehicle model. Sometimes, using a non-recommended battery can cause issues.

      2. Software Update: Sometimes, vehicle issues can be resolved with a software update. Ask the dealership if there are any updates available for your vehicle's computer system.

      3. Bypass the System: Some owners choose to bypass the Auto Stop/Start system altogether. There are aftermarket devices and methods to disable the system, but be aware that doing so might affect your vehicle's fuel efficiency and emissions. Also, make sure it's legal in your jurisdiction.

      4. Seek a Second Opinion: If the dealership you visited couldn't resolve the issue, consider visiting another Chrysler dealership or a reputable independent mechanic who has experience with Chrysler vehicles.

      5. Consumer Protection: If the vehicle continues to have unresolved issues, you might want to look into your rights under the Lemon Law or similar consumer protection laws in your jurisdiction. These laws are designed to protect consumers from vehicles that have repeated, unfixable issues.

      6. Document Everything: Keep a detailed record of all the issues, repairs, and communications related to the problem. This can be helpful if you decide to pursue a legal solution or if Chrysler decides to issue a recall or service bulletin in the future.

      Remember, while it's frustrating to deal with recurring vehicle issues, you're not alone. Many vehicle owners face challenges, and there are resources and avenues available to help you find a solution.

  4. oil checks out, car runs fine with the exception of the auto start/stop light being on, how long can I drive the car before it’s a problem?

    • Thank you for reaching out with your concern regarding the Chrysler Pacifica Auto Start Stop Warning Light. It's good to hear that your oil checks out and the car runs fine otherwise.

      The Auto Start Stop Warning Light on your Chrysler Pacifica is designed to inform you of potential issues with the vehicle's auto start/stop system. This system is primarily intended to save fuel by automatically turning off the engine when the vehicle is stationary, such as at a red light, and restarting it when you're ready to move again.

      If the light is illuminated, it suggests that there might be an issue with the system. The article mentions a few steps to take if the light comes on:

      1. Check the Oil Level: You've already done this, and it's great that it checks out.
      2. Inspect Battery Terminals: Ensure they are clean and free from corrosion. Dirty or corroded terminals can affect the system's performance.
      3. Check the Fuse Box: Look for any blown fuses and replace them if necessary.

      Given that your car runs fine otherwise, it's possible that the issue is minor. However, the auto start/stop system is a complex feature that interacts with various components of your vehicle, from the battery to the engine itself.

      To address your specific question about how long you can drive the car before it becomes a problem: While the vehicle might run fine for now, it's always a good idea to address warning lights sooner rather than later. Even if the car feels okay, there could be underlying issues that might worsen over time or lead to other complications.

      I would recommend scheduling a visit to a qualified technician or your dealership to have the system inspected. They can provide a more accurate diagnosis and ensure that your vehicle remains in optimal condition. Safe driving!


Leave a Comment