The 2019 GMC Sierra is a remarkable truck, celebrated for its powerful performance, spacious interior, and advanced technology. One popular feature among drivers is the remote start system, which allows you to conveniently start your vehicle from a distance, making it ideal for cold mornings or hot summer days. However, if you find that your remote start feature is not functioning as expected, it can be both frustrating and inconvenient. This article will explore common reasons why your 2019 GMC Sierra remote start might not be working, along with troubleshooting tips, and potential solutions to get it back up and running.
Understanding the Remote Start Feature
Before diving into troubleshooting, it’s essential to understand how the remote start feature in your GMC Sierra operates. Remote start allows you to start your vehicle’s engine remotely, giving the engine a chance to warm up or cool down before you enter. This feature is controlled through the key fob and relies on several systems within the truck.
Key Components Involved in Remote Start
To better understand potential issues, let’s break down the essential components involved in the remote start system of the 2019 GMC Sierra:
- Key Fob: The key fob sends a signal to your truck to start the engine when activated.
- Receiver Module: This component receives the signal from the key fob and initiates the starting sequence.
- Engine Management System: The engine control unit must be in a state that allows for remote starting.
- Security System: Your vehicle’s security settings may inhibit the remote start feature if certain conditions aren’t met.
Common Reasons for Remote Start Failure
If you’re experiencing issues with your remote start feature, understanding the underlying causes can provide insights into your troubleshooting efforts.
1. Key Fob Issues
A malfunctioning key fob is one of the most common culprits behind a non-working remote start. If the batteries are low or dead, the fob may not transmit signals effectively.
2. Distance Limitations
Remote start systems have a limited range; generally, the signal can reach about 200-300 feet under ideal conditions. If you are outside this range, the remote start will not initiate.
3. Engine Conditions
Certain conditions must be met for the engine to start remotely. For example, if the hood is open or if the vehicle is in gear, the remote start will not function. Additionally, remote start may be disabled if there are issues with the battery, fuel levels, or if the security system is activated.
4. Faulty Receiver Module
The receiver module is crucial for receiving the signal from the key fob. If this component is faulty, the remote start feature may not work.
5. Software Glitches
Like any modern vehicle, the 2019 GMC Sierra runs on software that manages many features. Occasionally, software glitches can impact the performance of your remote start system.
Troubleshooting Your GMC Sierra Remote Start
Now that you have a better understanding of what might be causing your remote start issues, it’s time to troubleshoot. Follow these steps to diagnose and possibly resolve the problem:
Step 1: Check the Key Fob
The first thing to do is check the key fob. Make sure that the battery is not dead and that the buttons are functioning properly.
Testing the Key Fob
- Replace the battery if necessary. A simple coin battery is usually all you need.
- Test the other buttons on the fob. If they work, the remote start button might be faulty.
Step 2: Assess Your Location
Next, consider your distance from the vehicle. Make sure you are within the operational range of the remote start feature.
Step 3: Examine Engine Conditions
Check the following conditions:
- Ensure the truck is in park.
- Make sure the hood is securely closed.
- Verify that the vehicle has adequate fuel levels.
If any of these conditions are not met, the remote start will not be functional.
Step 4: Inspect the Receiver Module
If everything seems fine with your key fob and vehicle conditions, it may be time to look at the receiver module.
How to Check the Receiver Module
- Consult your owner’s manual for the module’s location.
- Inspect for any visible damage or loose connections.
Step 5: Resetting the System
If you suspect a software glitch, resetting the vehicle’s system can sometimes solve persistent issues.
How to Reset Your GMC Sierra
- Disconnect the battery for about 10 minutes.
- Reconnect the battery and try using remote start again.
When to Seek Professional Help
If you’ve tried all the troubleshooting steps above and your remote start feature still isn’t working, it may be time to consult a professional. Here are situations where you should seek technical assistance:
1. Persistent Electrical Issues
If you notice other electrical problems in your vehicle, such as malfunctioning lights or dashboard warnings, it may be a sign of deeper electrical issues.
2. Diagnostic Codes
If you have access to an OBD-II scanner, check for any diagnostic trouble codes that may provide clues about the issue.
3. Warranty Considerations
If your GMC Sierra is still under warranty, consider taking it to an authorized dealership. They can often diagnose and fix these problems at no additional cost.
Potential Upgrades and Alternatives
If your remote start feature continues to be an issue, you may want to consider upgrading or installing an aftermarket remote start system.
Aftermarket Remote Start Systems
There are several reputable aftermarket systems available that may provide a more reliable remote start feature. When considering an aftermarket remote start system, remember to:
- Look for compatibility with the GMC Sierra.
- Ensure it comes with a reputable warranty.
- Check reviews to ensure reliability.
Mobile Apps and Smartphone Integrations
In an era where technology and automotive advancements go hand-in-hand, some modern vehicles come with mobile apps that allow you to manage vehicle functions from your smartphone. If your GMC Sierra is equipped, consider using such features to start your vehicle remotely.
Conclusion
A malfunctioning remote start system can be inconvenient, but by understanding the common issues and employing the right troubleshooting techniques, you can often resolve the problem. Always start with the simplest solutions, such as checking the key fob, battery conditions, and ensuring the proper vehicle settings. If the issues persist, don’t hesitate to seek professional assistance, whether through a dealership or qualified mechanic.
In summary, your 2019 GMC Sierra is a powerful machine, and with a little patience and understanding, you can navigate the occasional hiccup with the remote start feature. With the right steps, you’ll be able to return to the road with all the benefits that your GMC Sierra offers.
What are the common reasons for remote start failure in a 2019 GMC Sierra?
The most common reasons for remote start failure in a 2019 GMC Sierra include issues with the key fob battery, a malfunctioning remote start system, and problems with the vehicle’s security system. If the key fob battery is low or dead, it may not send a signal to activate the remote start feature. Additionally, if the remote start system has a technical fault or if there’s an issue with the vehicle’s wiring, this can also prevent the system from working properly.
Another potential cause could be issues with the vehicle’s safety features. For instance, if the driver’s door is not completely closed or if the vehicle is in gear, the remote start feature will not engage for safety reasons. Additionally, if there are any check engine lights or alerts displayed on the dashboard, this might also disable the remote start feature.
How can I check if my key fob is working properly?
To check if your key fob is working properly, start by testing the buttons. If the fob is functioning, the vehicle should respond to any button you press, whether it’s for locking, unlocking, or remote starting. If you notice that none of the buttons work, it’s likely that the key fob battery is dead and needs replacing. This is a simple process and can often be done with minimal tools.
If replacing the battery does not solve the issue, consider trying a different key fob if you have a spare. If the spare key fob works properly, then the original may need to be reprogrammed or replaced. If neither key fob works consistently, there might be an underlying issue with the vehicle’s receiver or remote start system, warranting further inspection by a professional.
What steps should I take to reset the remote start system?
To reset the remote start system on your 2019 GMC Sierra, begin by ensuring that all doors are closed and the vehicle is in park mode. Then, remove the key from the ignition and press the lock button on your key fob three times in succession. This should reset the security protocols and allow the remote start system to engage again.
If this method does not work, it’s advisable to consult the vehicle’s owner manual for any specific reset instructions related to the remote start feature. In some cases, a more in-depth reset may require the assistance of a certified GMC technician, especially if the system is experiencing faults or errors that are not easily resolved at home.
Is there a specific sequence to follow when using remote start?
Yes, there is a specific sequence when using the remote start feature on the 2019 GMC Sierra. Start by pressing the lock button on your key fob to ensure that the vehicle is secure. Then, press the remote start button twice within a short span (within three seconds). You should see the vehicle’s lights flash, and if successful, the engine will start.
It’s important to remember that for the remote start to function, certain conditions must be met. For instance, the vehicle should not be in gear, and all doors must be closed. If any safety feature is triggered, the remote start will not work, thereby requiring you to address any issues before trying again.
Could a dead car battery cause my remote start to fail?
Absolutely, a dead or weak car battery can cause the remote start feature to fail. The remote start system requires sufficient battery power to initiate the engine’s start process, and if the battery is not providing adequate power, the feature may not activate. Check the battery’s condition and connections, and replace it if necessary to restore functionality.
Additionally, if the battery is old or frequently discharged, it may not hold a charge well, contributing to intermittent issues with the remote start. Regular maintenance of the battery, including checking the voltage and connections, can help avoid problems with the remote start and other electrical features in the vehicle.
What should I do if my remote start feature is still not working after troubleshooting?
If your remote start feature is still not functioning after you’ve gone through troubleshooting steps, it may be time to seek professional help. Taking your 2019 GMC Sierra to a certified GMC dealership or a trusted automotive technician can help identify any underlying issues that may need to be addressed. They have advanced diagnostic tools that can detect faults in the remote start system or related components.
In some cases, there may be software updates or recalls that affect the remote start functionality. The dealership can inform you of any such requirements and perform updates if necessary. Addressing these issues sooner rather than later will ensure that your vehicle remains in optimal working condition and keeps you comfortable, especially in extreme weather conditions.