Understanding Remote Start Systems
If you’re like me and you value convenience, then you understand how frustrating it can be when your GMC Sierra remote start is not working. This issue is more common than you might think, and the solutions can be simpler than expected. But before we dive into fixing the problem, let’s understand how the remote start system works and why it’s important for your GMC Sierra.
Meet the Author
Hey there, folks! Since 2010, I’ve been the proud owner of a few GMC Sierras, always under the hood tinkering and tuning, just can’t seem to get enough of these beauties.
– Terry
How Remote Start Works
A remote start system is a technological marvel that lets us start our cars remotely. Pressing the remote start button sends a signal to the car’s computer. Signal activates ignition, starting the car. To get a comfortable ride, you can also turn on the car’s heating or cooling. This device helps you warm or cool your car before entering in extreme temperatures.
The Significance of Remote Start in GMC Sierra
The smart and technologically modern GMC Sierra has a remote start system for convenience and comfort. In harsh weather, this feature is game-changing. Starting your Sierra from home or work guarantees a comfortable ride and extends engine life by allowing it to reach its optimal operating temperature before driving.
Vehicle security includes remote start systems. The car starts without a key but cannot be driven without one. You may warm up or cool down your truck without worrying about theft.
Use our extensive GMC Sierra remote start instructions if you’re new to the car or need a refresher.
To fix problems with your GMC Sierra’s remote start system, you must first understand its purpose. In the following parts, we’ll discuss frequent GMC Sierra remote start issues and how to fix them.
Common Issues with GMC Sierra Remote Start
When it comes to troubles with the GMC Sierra remote start, there are several common issues that I’ve come across.
Battery Problems
I often have battery issues. If your Sierra’s remote start doesn’t work, check the key fob battery. The fob needs a strong signal to communicate with the vehicle, therefore a dead battery may prevent remote start.
Though simple, this change is often ignored. You can change the battery yourself or take the fob to a dealership or repair.
Remote Start Antenna Issues
The GMC Sierra remote start antenna can also malfunction. This antenna receives key fob signals. If broken, unplugged, or malfunctioning, your remote start may fail.
Troubleshooting antenna difficulties is harder because they might be caused by physical damage and internal electrical faults. Antenna problems are usually best handled by an expert.
Remote Start Fob Problems
Sometimes the remote start fob is the issue. The fob may be defective if the remote start doesn’t operate after replacing the battery. Damage, flaw, or wear & tear may cause this.
Use a backup fob to check if the problem is the fob. If the spare fob works, your original fob is likely broken. In this situation, replace the fob.
Vehicle System Issues
If your GMC Sierra’s remote start still doesn’t work, it may be the vehicle’s systems. A triggered security system, check engine light, or low fuel level can disable the remote start.
To fix these issues, check your dashboard for warning lights and messages. Consult your vehicle’s owner’s manual or a mechanic if you see a warning light.
These typical issues may cause your GMC Sierra remote start to malfunction. There may be additional considerations. For complete information on using the remote start capability on your GMC Sierra, see our guide on GMC Sierra remote start instructions.
Troubleshooting GMC Sierra Remote Start Failure
My GMC Sierra remote start not functioning is aggravating. Before calling a pro, I can do some basic troubleshooting to find the problem. I can check the battery, fob, antenna, and car systems with these steps.
Checking the Battery
I start troubleshooting by checking the battery. Remote start failures often result from a dead or weak remote fob battery. I know that a low battery may prevent the remote fob from signaling the vehicle.
I can use the fob to lock or unlock doors to test the battery. If these functions fail, the battery may need replacing.
Inspecting the Fob and Antenna
The remote fob and antenna must be checked next. The fob may not send the signal if damaged. I must look for cracks or loose buttons.
Receiving the remote fob signal also depends on the vehicle antenna. A damaged or obstructed antenna may not receive the signal, preventing remote start. I can inspect the antenna for damage or blockages.
Checking Vehicle Systems
If the battery and fob are fine, the problem may be in the vehicle. The remote start may not work if the check engine light is on, the hood is open, or the car is not in park.
Ensure the vehicle is in park with the hood closed and examine the dashboard for warning lights. If the remote start still doesn’t function, a professional may need to diagnose a more complex car system issue.
Professional Solutions for Remote Start Failure
Should you find your GMC Sierra remote start not working, there are instances when you’ll need to seek professional help. It’s vital to understand when a professional is needed, what diagnostic processes they undertake, and what possible solutions they may suggest.
When to Consult a Professional
I can fix many remote start system issues myself, but sometimes I should call a pro. If the remote start still fails after checking the battery, fob, antenna, and GMC Sierra systems, I should call an expert.
If I see any physical damage to the remote start system or feel uncomfortable troubleshooting, I should take my GMC Sierra to a specialist. Repairs and modifications must be done appropriately to avoid damaging the remote start system.
Understanding Diagnostic Processes
Professional technicians diagnose GMC Sierra remote start systems thoroughly. I’ll explain the issue and any troubleshooting procedures I’ve taken. They will then evaluate the fob, antenna, and car systems of the remote start system.
The technician will check for system problems and error codes using diagnostic equipment. This can assist them identify the remote start failure. The best and most efficient solution to the problem depends on this diagnostic process.
Possible Fixes and Repairs
After diagnosing the problem, the professional can recommend a remote start system remedy. This could involve replacing the battery, fob, antenna, or car software.
If the issue is more complex, such the vehicle’s electrical system or remote start system, the technician may need to do more extensive repairs. They’ll explain the repairs, estimate the cost, and offer me a schedule.
By knowing when to consult a professional, what to expect during diagnostics, and the available remedies, I can fix my GMC Sierra’s remote start system properly and efficiently.
Maintaining Your GMC Sierra Remote Start System
A working GMC Sierra remote start system is convenient, especially in bad weather. Maintaining its proper operation should be a priority. This section covers GMC Sierra remote start system maintenance, including routine tests, maintenance, and failure prevention.
Regular Checks and Maintenance
Regular maintenance is needed for the GMC Sierra remote start technology to work properly. This involves inspecting and replacing the remote start battery. The remote fob should also be checked for evident damage.
Additionally, check the remote start antenna for damage or disconnection.
Tips for Long-Term Use
For long-term use of your GMC Sierra’s remote start system, there are a few tips you can follow:
- Keep the remote start fob clean and dry – Keeping the remote clean prevents dirt or moisture from causing internal damage.
- Avoid dropping the remote start fob – This could lead to internal damage that may not be visible but can cause the remote start system to stop working.
- Replace the battery regularly – Even if the remote start is not showing signs of low battery, it’s advisable to replace the battery every two years to ensure optimal performance.
- Avoid exposing the remote start fob to extreme temperatures – Both extremely cold and hot temperatures can affect the functionality of the remote start system.
Preventive Measures for Future Failures
Prevention is always better than cure. By taking certain preventive measures, you can avoid common issues that cause the GMC Sierra remote start to stop working:
- Use a protective case for the remote start fob – A protective case can help prevent damage from drops or spills.
- Keep a spare remote start fob – Having a spare remote can be handy in case the original is lost or stops working.
- Regular professional maintenance – Scheduling regular professional maintenance can help detect and fix potential issues before they cause the remote start system to fail.