The convenience of a remote start feature in your 2018 Chevy Malibu is one of those modern luxuries we often take for granted. However, when this feature suddenly stops working, it can be a frustrating experience. Whether it’s the winter chill or the sweltering heat of summer, a functioning remote start system plays a crucial role in preparing your vehicle for the elements. In this article, we will delve into the common issues that may cause your remote start to malfunction and provide step-by-step troubleshooting methods to help you restore this convenient feature.
Understanding the Remote Start System in the 2018 Chevy Malibu
Before delving into troubleshooting, it’s essential to understand how the remote start system functions in your 2018 Chevy Malibu. The remote start system is designed to provide convenience, allowing you to start your engine and set the interior climate before entering the vehicle. This system operates off the smart key fob, which uses radio frequencies to communicate with the vehicle’s onboard computer when the remote start button is pressed.
Key Components of the Remote Start System
The main components that contribute to the functioning of the remote start feature include:
- Key Fob: This is the primary device used to engage the remote start function.
- Body Control Module: This module processes signals from the key fob and controls various electronics in the vehicle.
- Engine Control Module (ECM): Also referred to as the engine’s computer, the ECM monitors and controls engine functions.
- Security System: The vehicle’s security and anti-theft system plays a role in validating remote start commands.
Understanding these components can help you identify where the potential issues lie.
Common Reasons for Remote Start Failure
If your 2018 Chevy Malibu remote start isn’t working, you may be facing one of several common problems. Here are the most frequent issues that could interrupt its functionality:
1. Dead or Weak Key Fob Battery
A dead or weak battery often serves as a primary culprit when the remote start feature fails. If your vehicle isn’t responding when you press the remote start button, the first thing to check is the battery in your key fob.
How to Check and Replace the Key Fob Battery
- Open the key fob using a small flathead screwdriver or a coin.
- Inspect the battery. If it appears corroded or depleted, note the battery type and replace it.
- Replace the battery, ensuring it’s installed in the correct positive and negative orientation.
- Test the key fob again to see if the remote start function is restored.
2. Incorrect Settings or Programming
Another common reason why your remote start might not be working is related to the settings within the Vehicle settings menu. Occasionally, the remote start feature can be inadvertently disabled.
How to Check Remote Start Settings
- Access the vehicle settings through the infotainment system.
- Navigate to the “Vehicle” or “Settings” menu.
- Look for the “Remote Start” option and ensure it’s enabled. If it’s disabled, enable it and save the settings.
3. Security System Bypass
The security system’s integration can sometimes prevent remote start commands from being accepted. If you’ve recently changed the key, or the Battery has been disconnected, the security system may be engaged, blocking remote starting capabilities.
How to Bypass the Security System
- Ensure all doors are properly closed and locked.
- Press the lock button on the key fob twice and wait for the vehicle to respond (e.g., lights flashing, horn) that signals the system is armed.
- Try the remote start again.
4. Faulty Body Control Module
If the key fob and settings check out, the issue may lie with the Body Control Module (BCM). This part handles the communications between the key fob and various functions, including remote start. A malfunctioning BCM may prevent the engine from starting remotely.
How to Check the BCM
- Using an OBD-II scanner, check for any error codes linked to the BCM.
- If codes are present, they may indicate a malfunction that requires professional diagnosis.
5. Issues with the Engine Control Module (ECM)
The ECM is responsible for starting the engine when a remote start command is received. If it’s malfunctioning, you may face further delays or failures in remote start functionality.
Diagnosing ECM Issues
- Similar to the BCM, use an OBD-II scanner to check for error codes.
- A professional technician should confirm if the ECM needs programming or replacement based on the errors retrieved.
Steps to Troubleshoot Your Remote Start System
If you’re still grappling with a non-functional remote start after examining the above factors, follow this comprehensive troubleshooting guide:
Step 1: Verify Key Fob Functionality
Before doing anything drastic, double-check that the key fob is sending a signal. Try using the lock and unlock buttons on the fob. If these functions work, your key fob is likely not the issue.
Step 2: Perform a Battery Check
If the remote start still isn’t working after verifying key fob functionality, check your vehicle’s battery. Low vehicle battery power can disable the remote start feature.
- Inspect the vehicle battery terminals for corrosion and securing the connections.
- Test the battery voltage with a multimeter. If it reads under 12.4 volts, consider jumping your vehicle.
Step 3: Ensure Proper Vehicle Conditions
The remote start will not function if the vehicle is inopportune conditions. Ensure:
- All doors are closed.
- The vehicle is in park.
- The hood is closed and latched.
- The brake pedal isn’t pressed when commanding the remote start.
Step 4: Consult the Owner’s Manual
Your owner’s manual will have specific guidance on your remote start system and troubleshooting steps that are unique to your Chevy Malibu model year.
Step 5: Professional Help
If none of the steps resolve the issue, it’s advisable to seek help from a certified Chevrolet technician. They can perform diagnostics using specialized tools that can pin down the exact problem quickly.
Preventive Measures for the Remote Start System
Once your remote start feature is back up and running, consider these preventive measures to keep it functioning optimally:
Regular Battery Maintenance
Regularly check your key fob and vehicle battery health. Replace the key fob battery annually or as needed, and ensure your vehicle’s battery is within its life cycle.
Vehicle Diagnostics
Schedule regular check-ups for your vehicle’s electronic systems. This will help identify any rising issues with the BCM or ECM before they develop into more severe problems.
Keeping Your Key Fob Safe
Avoid dropping or exposing your key fob to extreme weather conditions as this can affect its operation. Furthermore, do not keep it near any magnetic objects that might interfere with its functionality.
Conclusion
The remote start feature in your 2018 Chevy Malibu is indeed a wonderful convenience — but when it malfunctions, it can be a frustration worth addressing head-on. By employing the troubleshooting methods outlined above, you can identify and resolve the most common issues preventing your remote start from functioning.
Remember to perform regular maintenance on your vehicle’s electronic systems and key fob to mitigate problems before they arise. If all else fails, don’t hesitate to go to a professional technician who can help you get back to enjoying the benefits of remote start functionality. With the right care, your Chevrolet Malibu’s remote start can continue to serve you well in all seasons.
What should I do if my remote start is not working?
If your remote start isn’t functioning, the first step is to check the battery in your key fob. A weak or dead battery can prevent the remote start feature from activating. Replace the battery and try to start your vehicle again. Additionally, ensure you’re within the operating range for the remote start, as moving too far away from the car can disrupt the signal.
If the battery replacement doesn’t solve the problem, inspect the status of your vehicle’s ignition system. Sometimes, there might be issues with the ignition switch or security system that prevent the remote start from working. A diagnostic check by a professional may also reveal codes or issues that need attention.
Why does my remote start only work intermittently?
Intermittent remote start functionality can be caused by several factors. One common issue is a faulty key fob. If the buttons are sticking or if the fob has sustained damage, it may only work sometimes. Try using a spare key fob, if available, to rule out the remote as the problem.
Another factor could be environmental interference. Signal interference from other devices or even buildings can disrupt the communication between the key fob and the vehicle. Make sure you’re in an open area when attempting to use the remote start feature, as doing so can enhance the signal’s effectiveness.
Can the remote start feature cause any problems with my car?
Generally, the remote start feature is designed to operate safely, but there can be instances where issues may arise. For example, if the engine is not properly maintained or if there are existing faults in the ignition system, it could exacerbate those issues. It’s best to ensure your vehicle is in good working condition before using the remote start feature.
Additionally, environmental conditions can also play a role. If your vehicle is parked in an enclosed space, remote starting it could lead to hazardous exhaust buildup. Always ensure that the vehicle is in a well-ventilated area before engaging the remote start feature to avoid any safety hazards.
What could prevent my 2018 Chevy Malibu from remote starting?
Various factors can prevent remote start from functioning properly. One of the most common issues is the vehicle’s hood being open. The remote start feature is designed to be a safety measure and will not engage if it detects that the hood is not securely closed. Be sure to check that all doors and the trunk are closed as well.
Additionally, if your vehicle has a security system, it may interfere with the remote start feature. If the security system is activated, it can prevent the remote start from working. Verify that the system is not triggered and consult your owner’s manual for any specific security-related issues that could affect remote starting.
How far can I be from my car for the remote start to work?
The remote start feature typically works within a range of approximately 300 feet, although this can vary based on environmental factors such as buildings, trees, and other obstructions. If you are having trouble starting your vehicle from a distance, try moving closer to improve the connection between the key fob and your car.
Even with a clear line of sight, there can be some limitations due to interference from other electronic devices. If you’re too far away or in an area with high interference, the remote start feature may not work as expected. If you consistently have issues with range, consider consulting a professional to check if the remote start system is functioning properly.
What does it mean if my car doesn’t respond to the remote start but the lights flash?
If your vehicle’s lights flash when you attempt to use the remote start, it indicates that the remote is communicating with the car, but there is a reason why the engine isn’t starting. Common issues could include the vehicle being in gear or a problem detected within the starting system. Make sure the car is in park before trying again.
Another reason for the lights flashing could be related to the security system of your Chevy Malibu. If the system detects an issue or breach, it may prevent the engine from starting. Review your owner’s manual for any specific indicators related to your vehicle’s security system, and consider resetting it according to the manufacturer’s instructions.
Is there a way to reprogram my remote start system?
Yes, reprogramming the remote start system on your 2018 Chevy Malibu is possible, but it often requires specific steps or tools. Typically, this can be done through the vehicle’s onboard diagnostics with the appropriate scan tool, especially if you suspect a malfunction with the key fob or the remote start module. Consulting your owner’s manual can provide guidance on the reprogramming process.
If you’re uncomfortable attempting this on your own, it’s advisable to take your vehicle to a certified Chevrolet dealership or an experienced automotive technician. They will have the necessary equipment and expertise to reprogram the remote start system correctly and ensure everything is functioning as intended.