Why Your Subaru Forester Remote Start Might Not Be Working: Troubleshooting Guide

Whether you are braving cold winter mornings or sweltering summer afternoons, one of the most convenient features of your Subaru Forester is its remote start ability. Nothing can ruin a perfectly planned day like discovering that your remote start isn’t functioning properly. If you’ve found yourself in this frustrating situation, don’t worry; this comprehensive guide will help you understand the potential issues behind your Subaru Forester remote start not working and provide troubleshooting steps to get you back on track.

Understanding the Remote Start Feature in Subaru Forester

The remote start feature in the Subaru Forester is designed with convenience and comfort in mind. It allows you to start your vehicle from a distance, enabling you to warm up your car during frigid winter days or cool it down on a scorching summer afternoon. This feature can typically be activated using the key fob, and for more modern models, it can also be integrated with the Subaru Starlink mobile app.

Common Reasons Why Subaru Forester Remote Start May Not Work

If you’re facing issues with your remote start, understanding the underlying causes can often lead to the quickest resolution. Here are some common reasons why your Subaru Forester remote start might not be functioning:

1. Key Fob Battery Issues

One of the most frequent culprits behind malfunctioning remote start systems is the battery in your key fob. A weak or dead battery will affect the range and functionality of the remote start feature.

How to Check and Replace Your Key Fob Battery

  • Check the Battery Life: If your remote start is intermittent or requires multiple presses to engage, it might be time for a battery replacement.
  • Replace the Battery: Open the key fob using a small flathead screwdriver or a similar tool. Replace the old battery with a new one of the same type, typically a CR2032 battery. Ensure the new battery is installed with the correct orientation.

2. Vehicle Security System Interferences

Many Subaru vehicles come equipped with advanced security systems that can inadvertently hinder remote start functionality. If the security system is triggered or malfunctioning, it might prevent the remote start feature from operating.

How to Reset the Vehicle’s Security System

  • Unlock the Vehicle: Use the key or key fob to unlock your Forester properly.
  • Start the Engine Normally: Insert the key into the ignition and start the vehicle to reset the security system.

3. Faulty Remote Start Module

Every remote start system includes a central module that processes signals from your key fob and communicates with the vehicle’s ignition system. If this module fails, you’ll likely find that the remote start won’t function at all.

Signs of a Faulty Remote Start Module

  • Frayed wires or visible damage to the remote start wiring gauge
  • Inability to start the vehicle using the remote at all
  • Inconsistent functioning of the remote start feature over time

If you suspect the module is at fault, you may need to consult a certified technician or visit your local Subaru dealership.

4. Temperature or Safety Sensor Issues

Subaru’s remote start features come with safety precautions, including temperature and other sensor measures, to ensure safe vehicle operation. For instance, if the outside temperature is too hot or cold, or if an open door is detected, the remote start will not work.

Checking Sensors and Settings

  • Ensure that all doors, hoods, and trunks are securely closed before attempting to engage remote start.
  • Check the vehicle’s climate control settings to ensure they are set appropriately for remote start use.

5. Software Updates and Compatibility Issues

As with any technology, software issues can arise. Sometimes, your vehicle might need software updates or recalls to ensure that all features work correctly, including the remote start system.

How to Update Your Vehicle Software

  • Visit your local Subaru dealership and inquire about possible software updates.
  • If you have the Subaru Starlink app, check the app for alerts regarding your vehicle’s software status and possible updates.

Step-by-Step Troubleshooting Guide

If your Subaru Forester’s remote start feature is not working, you can take a few troubleshooting steps to resolve the issue more effectively.

Step 1: Check the Key Fob

Start by checking the key fob, as a weak battery is a common issue. Replace the battery if necessary and try using the remote start once again.

Step 2: Inspect Vehicle Security Settings

Ensure that the vehicle’s security system is not preventing remote start functionality. Unlock the vehicle and start the engine to reset any potential issues.

Step 3: Look for Sensor Interferences

Make sure that all doors, hoods, and trunks are properly closed and that no safety alerts are preventing the vehicle from starting.

Step 4: Consult Your Owner’s Manual

Your Subaru Forester’s owner manual will include specific information related to troubleshooting remote start concerns tailored to your particular model year.

When to Seek Professional Help

If you have followed all troubleshooting steps and your remote start still isn’t working, it may be time to consult a professional. Here are a few circumstances to consider seeking help:

1. Continuous Issues

If the remote start fails repeatedly despite checking the battery, security systems, and sensors, there might be a more profound, complex issue.

2. Damaged Equipment

If your key fob shows signs of physical damage or your remote start module appears malfunctioning, visiting a professional is necessary.

3. Scheduled Maintenance

Regular maintenance is essential for any vehicle. If it’s been a while since your last service appointment, it may be worth taking your Subaru Forester in for a comprehensive check-up.

Costs Associated with Repairing Remote Start Systems

If professional help is required, understanding the potential costs of repairs can provide peace of mind.

Typical Costs Involved

The costs associated with diagnosing and fixing remote start issues can vary based on the problem’s nature and the dealership or mechanic’s rates. Standard price ranges include:

  • Key Fob Battery Replacement: Generally, $5 to $30.
  • Remote Start Module Replacement: Depending on the complexity, costs may range from $100 to $500 or more.
  • Labor Costs: Labor rates vary, but expect to pay between $75 to $150 per hour at most professional services.

Final Thoughts: Maintaining Your Subaru Forester Remote Start System

Maintaining your Subaru Forester’s remote start system requires regular checks of your key fob battery, ensuring the security system is operational, and being aware of and addressing any software updates. Household maintenance goes a long way in preventing small issues from escalating into larger, more complicated problems.

If your remote start feature remains unresponsive even after considering all the aspects outlined in this article, don’t hesitate to reach out to your local Subaru dealership or a certified mechanic. Remember that staying proactive and informed about your vehicle’s systems is the best way to ensure reliability—giving you one less thing to worry about on those busy mornings!

What are common reasons for a Subaru Forester remote start to stop working?

The Subaru Forester remote start may stop functioning due to a few common reasons. One of the primary culprits can be the vehicle’s battery. If the battery is weak or depleted, it may not provide enough power for the remote start system to operate. In addition, check for a blown fuse related to the remote start circuit, as this can simply prevent the feature from functioning.

Another common reason is interference from other electronic devices. Remote start systems operate on specific frequencies, and anything that emits RF signals, such as other remote devices or even cell phones, can disrupt the communication between the remote key fob and the vehicle. Make sure you are using your remote start in an area free from such interference.

How can I check if my key fob battery is dead?

To determine if your key fob battery is dead, start by attempting to unlock your Subaru Forester with the remote. If it doesn’t respond, try using the fob for other functions, such as locking or unlocking the doors. If none of these features work, it’s likely that the battery is dead. Additionally, you can try getting closer to the vehicle, as sometimes distance can affect the signal strength.

If you suspect the battery is dead, you can test it by replacing it with a new one. Most key fobs use a standard battery type, and you can find this information in your owner’s manual. After replacing the battery, try using the remote start feature again to see if it resolves the issue.

What should I do if my Subaru Forester is in valet mode?

If your Subaru Forester is in valet mode, the remote start feature will not work. Valet mode is a setting that disables various features, including remote start, for security purposes when you hand your keys to a valet. To check if your vehicle is in valet mode, refer to your owner’s manual for instructions on how to identify and exit this mode.

To exit valet mode, usually, you need to press a specific button sequence on your key fob or perform a sequence on the vehicle itself. Once you have successfully exited valet mode, you should be able to use the remote start feature as intended. Double-check your vehicle’s settings to ensure it is no longer in this mode.

Can extreme weather affect remote start functionality?

Yes, extreme weather conditions can significantly impact the performance of your Subaru Forester’s remote start system. Extremely cold temperatures can lead to decreased battery efficiency, which may hinder the functionality of the key fob. Furthermore, if the vehicle’s sensors detect that the temperature is too low, the remote start may automatically disable itself to protect the engine and battery from further strain.

Conversely, overly hot weather can also affect remote start systems. Heat can cause components within the key fob and the vehicle’s electrical systems to malfunction or wear out more quickly. Ensure that your key fob remains in a temperature-regulated environment and that your vehicle is operating properly even in extreme conditions.

What can cause the remote start to be disabled when the hood is open?

The Subaru Forester’s remote start feature is designed with safety mechanisms, one of which prevents the engine from starting if the hood is open. This is a safety precaution to ensure that no one is working under the hood while the engine starts, posing a serious risk for injury. If you find that remote start isn’t working and the hood is open, make sure to securely close it before trying again.

Additionally, the hood latch sensor could be malfunctioning, registering the hood as open even when it is closed properly. If you encounter this issue frequently, it may be worth checking the sensor for any signs of damage or corrosion that might interfere with its operation. Cleaning or adjusting it could resolve the problem.

How can I troubleshoot the remote start system itself?

To troubleshoot the remote start system itself, begin by checking the car’s settings and ensuring that the feature is enabled. Many Subaru models allow you to customize key fob functionalities through the car’s settings menu. Refer to your owner’s manual to confirm that the remote start is active and hasn’t been disabled inadvertently.

Next, inspect the installation of the remote start system, especially if it was added as an aftermarket feature. Loose connections, damaged wiring, or improper installations can lead to system failures. If you suspect a problem at this level, consulting a professional technician or returning to the installer is advisable to ensure everything is secure and functioning correctly.

What role do the vehicle’s security settings play in remote start functionality?

The vehicle’s security settings can significantly impact the performance of the remote start feature in your Subaru Forester. Many security systems are designed to prevent unauthorized access to the vehicle, and if they detect any unusual activity, they may disable the remote start feature. This is especially true if the security system has been triggered, either through a door being ajar or a low battery warning.

To troubleshoot this, make sure your vehicle is not displaying any security alerts. You may need to deactivate the alarm to restore remote start functionality. Refer to your owner’s manual to familiarize yourself with the security system settings and how they interact with the remote start feature, ensuring they are set correctly.

When should I consult a professional for remote start issues?

If you’ve gone through all basic troubleshooting steps and still cannot get your Subaru Forester’s remote start to work, it might be time to consult a professional. When the issue exceeds common problems such as a dead battery or incorrect settings, a technician can conduct a comprehensive diagnostic check. They will have access to specialized tools and equipment to identify any hidden issues with the remote start system or vehicle wiring.

Additionally, if the remote start system was installed as an aftermarket feature, the installation could be a factor in its malfunction. A professional would be able to inspect the installation quality and ensure everything is compliant with Subaru’s specifications. This can save you time and potential further issues down the line.

Leave a Comment