2018 Chevrolet Trax AC Isn't Working

Common Causes of AC Malfunctions in Your 2018 Chevrolet Trax and How to Fix Them

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Reviewed by
Devin Cabugcal
Written by RepairPal Car Genius
Updated January 14, 2025
0%
37% chance it's the
Refrigerant Leak
0%
21% chance it's the
Climate Control Electrical Issue
0%
12% chance it's the
AC Compressor
0%
30% chance it's
Something else
The most common reasons a 2018 Chevrolet Trax AC isn't working are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor.
  • Refrigerant Leak: A refrigerant leak can occur due to damaged hoses, seals, or connections, resulting in decreased cooling efficiency in the air conditioning system.
  • Climate Control Electrical Issue: A faulty climate control module or a blown fuse could be causing the electrical issues in the climate control system.
  • AC Compressor: A faulty AC compressor may be due to a lack of lubrication, electrical issues, or internal mechanical failure, resulting in inadequate cooling performance.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

What are the initial diagnostic steps to take when the AC isn't working in a 2018 Chevrolet Trax?

When your 2018 Chevrolet Trax's AC isn't functioning properly, start by checking the thermostat settings to ensure they are correctly adjusted to a cool temperature, as incorrect settings can often be the simplest explanation for the problem. Next, inspect the air filters; dirty or clogged filters can significantly restrict airflow, leading to diminished AC performance. If the filters are clean, examine the refrigerant levels, as low refrigerant can result in warm air blowing from the vents. You can use a pressure gauge for this task or seek professional help if you're unsure. Additionally, look for any visible signs of leaks in the AC system, such as oily residue, which can indicate refrigerant loss. The AC compressor is another critical component to check; listen for unusual noises and visually inspect it for any signs of damage. Finally, ensure that all electrical connections related to the AC system are secure, as faulty electrical components can prevent the system from operating correctly. By following these steps, you can effectively diagnose common AC issues in your Chevrolet Trax and determine whether further professional assistance is needed.

What are the common problems that could cause the AC to stop working in a 2018 Chevrolet Trax?

When the air conditioning system in your 2018 Chevrolet Trax fails to cool, it can be frustrating, but understanding the common problems can help you diagnose the issue effectively. One of the primary culprits is low refrigerant levels, which can occur due to leaks or insufficient charging, leading to inadequate cooling. Another frequent issue is a faulty compressor; if the compressor isn't functioning properly, it won't circulate the refrigerant effectively, resulting in a lack of cool air. Additionally, electrical problems such as blown fuses or damaged wiring can disrupt the AC's operation, so checking these components is essential. A clogged or leaking condenser can also hinder the system's performance, as it plays a crucial role in dissipating heat. Lastly, if you're experiencing weak airflow from the vents, a malfunctioning blower motor may be to blame. By systematically checking these areas, you can identify and address the root cause of your AC problems, making it possible to restore comfort to your vehicle.

How urgent is it to address the non-functioning AC in a 2018 Chevrolet Trax?

When it comes to a non-functioning AC in your 2018 Chevrolet Trax, understanding the urgency of the situation is crucial for both comfort and safety. Driving without a working air conditioning system can lead to significant discomfort, especially in hot weather, which can distract you and impair your focus on the road. Moreover, a malfunctioning AC might indicate underlying issues within the vehicle's cooling system that, if left unaddressed, could escalate into more severe problems and costly repairs. Regular maintenance is key to preventing such scenarios, as it not only enhances your driving experience but also safeguards against future expenses. Therefore, while it may not seem like an immediate emergency, prioritizing the repair of your AC system is essential for ensuring a pleasant and safe journey for you and your passengers. Taking action sooner rather than later can help you avoid the discomfort of a sweltering ride and the potential for more significant vehicle damage down the line.

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