2020 Chevrolet Malibu AC Isn't Working

Common Causes of AC Malfunctions in Your 2020 Chevrolet Malibu and How to Fix Them

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Reviewed by
Andrew Hajjar
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 2020 Chevrolet Malibu 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 2020 Chevrolet Malibu?

When your 2020 Chevrolet Malibu's AC isn't functioning properly, it's crucial to approach the problem methodically to identify the root cause. 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 an AC malfunction. Next, inspect the air filters; dirty or clogged filters can significantly restrict airflow, leading to poor cooling 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 to check these levels or seek professional assistance 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 inspect; listen for unusual noises and check for any visible damage. Finally, ensure that all electrical connections related to the AC system are secure, as faulty connections can hinder performance. By following these steps, you can effectively diagnose common issues with your AC system and determine whether further professional intervention is necessary.

What are the common problems that could cause the AC to stop working in a 2020 Chevrolet Malibu?

When troubleshooting the air conditioning system in a 2020 Chevrolet Malibu, it's crucial to recognize the common problems that could lead to a malfunction. One of the primary issues is low refrigerant levels, which can significantly hinder the system's ability to cool the air effectively. If the refrigerant is low, it may indicate a leak that needs to be addressed. Another potential culprit is a faulty compressor; if the compressor isn't functioning properly, it won't circulate the refrigerant, resulting in inadequate cooling. Additionally, electrical issues such as blown fuses or damaged wiring can disrupt the AC's operation, making it essential to check these components. Clogged or leaking refrigerant lines can also impede performance, as blockages prevent the proper flow of refrigerant. Furthermore, problems with the condenser or evaporator can obstruct the cooling process, while a defective blower motor may lead to insufficient airflow from the vents. Identifying these issues early on can help you determine whether a DIY fix is possible or if professional assistance is needed to restore your vehicle's AC functionality.

How urgent is it to repair the non-functioning AC in a 2020 Chevrolet Malibu?

Addressing a non-functioning AC in your 2020 Chevrolet Malibu is not just a matter of comfort; it is a crucial aspect of vehicle maintenance that should not be overlooked. The urgency of repair becomes evident when considering the discomfort of driving in sweltering heat, which can detract from your overall driving experience. Moreover, a malfunctioning AC system can compromise safety by failing to defog windows effectively, leading to reduced visibility during critical driving conditions. This is particularly concerning for those who frequently drive in humid or rainy weather. Additionally, maintaining a fully operational AC system is essential for preserving the resale value of your vehicle; potential buyers are likely to be deterred by known issues. Lastly, delaying repairs can result in more severe problems down the line, potentially leading to costly repairs that could have been avoided with timely attention. Therefore, it is advisable to prioritize the repair of your AC system to ensure a safe, comfortable, and valuable driving experience.

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