2017 Genesis G90 AC Isn't Working

Common Causes of AC Malfunctions in Your 2017 Genesis G90 and How to Resolve 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 2017 Genesis G90 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 steps to diagnose the AC issue in a 2017 Genesis G90?

To diagnose the AC issue in your 2017 Genesis G90, start with the simplest checks before moving on to more complex diagnostics. Begin by inspecting the air filters, as dirty or clogged filters can significantly restrict airflow and diminish AC performance. Next, assess the refrigerant levels; low levels may indicate a leak, which is crucial to address for proper cooling. Following this, examine the compressor for any signs of damage or malfunction, as it plays a vital role in the AC system's operation. Additionally, test the thermostat to ensure it is functioning correctly, as a faulty thermostat can lead to inconsistent cooling. It’s also important to check for any visible leaks in the AC system, as these can directly impact performance. Lastly, evaluate the electrical components for any faulty wiring or issues that could be causing problems. If these steps do not resolve the issue, consulting a professional mechanic or HVAC technician is advisable to ensure a thorough diagnosis and repair. By following this structured approach, you can effectively identify and address AC issues in your Genesis G90.

What are the common problems that could cause the AC to stop working in a 2017 Genesis G90?

When the air conditioning system in a 2017 Genesis G90 ceases to function, several common problems may be at play. One of the primary culprits is refrigerant leaks, which can significantly diminish the system's cooling efficiency. If you notice a lack of cold air, checking for leaks in the refrigerant lines is a crucial first step. Another frequent issue is a faulty compressor; if the compressor is not operating correctly, it will fail to produce cold air, rendering the AC ineffective. Additionally, electrical problems, such as blown fuses or damaged wiring, can disrupt the AC's operation, so inspecting the electrical components is essential. A clogged or dirty condenser can also impede airflow, making it difficult for the system to cool the air effectively. Furthermore, a malfunctioning thermostat may lead to inconsistent temperature control, while a failing blower motor can prevent cold air from circulating within the cabin. By understanding these common issues, DIYers can better diagnose the problem and take appropriate steps to restore their vehicle's air conditioning system.

How urgent is it to address the AC failure in my 2017 Genesis G90?

When faced with an AC failure in your 2017 Genesis G90, it is crucial to recognize the urgency of the situation. A malfunctioning air conditioning system not only compromises your comfort during extreme weather but can also signal deeper issues within your vehicle's cooling system. Ignoring these symptoms may lead to overheating, which poses a significant risk to your engine's health and could result in costly repairs. By addressing the AC failure promptly, you not only enhance your driving experience but also safeguard your vehicle's overall performance and longevity. Regular maintenance and timely repairs are essential in preventing further damage, making it wise to take action as soon as you notice any signs of AC malfunction. This proactive approach not only ensures your safety and comfort but also helps you avoid more extensive repairs in the future.

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2017 Genesis G90 AC Issues: Common Problems & Diagnosis