2017 GMC Yukon XL AC Isn't Working

Common Causes of AC Failure in Your 2017 GMC Yukon XL and How to Resolve Them

Find Repair Location
Reviewed by
Bo Fader
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 GMC Yukon XL 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 GMC Yukon XL?

When diagnosing an AC issue in a 2017 GMC Yukon XL, it's crucial to follow a structured diagnostic approach that prioritizes simpler checks before delving into more complex assessments. Begin by inspecting the air filters, as dirty cabin and engine air filters can significantly hinder airflow and compromise AC performance. Next, check the refrigerant levels using a gauge; low levels may suggest a leak or other issues that need to be addressed. After that, examine the AC compressor for any signs of damage or wear, since a malfunctioning compressor can severely affect cooling efficiency. It's also important to verify that the AC controls inside the vehicle are functioning correctly, as any malfunction here can disrupt the entire system. Additionally, inspect the AC system for visible leaks around connections or components, as these can lead to refrigerant loss and diminished cooling capacity. Finally, run the AC system and monitor its performance, noting any unusual noises, weak airflow, or inconsistent cooling, which can indicate deeper problems. By systematically following these steps, you can effectively diagnose and resolve AC issues in your GMC Yukon XL, ensuring optimal performance and comfort.

What are the common problems that could cause the AC to stop working in a 2017 GMC Yukon XL?

When the air conditioning system in a 2017 GMC Yukon XL ceases to function, it can be frustrating, especially during hot weather. One of the most frequent culprits is low refrigerant levels, which can occur due to leaks or insufficient charging, preventing the system from achieving optimal cooling. Another common issue is a faulty compressor; if the compressor is not engaging properly, the entire AC system will struggle to cool the air effectively. Additionally, electrical problems such as blown fuses or damaged wiring can disrupt the power supply to the AC components, leading to malfunction. Clogged or leaking condensers can also hinder the system's performance, as they are essential for dissipating heat. Lastly, a malfunctioning blower motor can result in inadequate airflow, making it seem like the AC is not working at all. By understanding these potential issues, DIYers can better diagnose the problem and take appropriate steps to restore their vehicle's cooling system.

How urgent is it to address the AC failure in a 2017 GMC Yukon XL?

When faced with an AC failure in your 2017 GMC Yukon XL, it is crucial to recognize the urgency of the situation. While it may not seem like an immediate emergency, addressing the malfunction promptly can significantly enhance your driving experience. A properly functioning AC system is essential for maintaining a comfortable cabin temperature, especially during sweltering summer months or on long road trips. Discomfort caused by inadequate cooling can distract the driver and passengers, potentially compromising safety on the road. Moreover, delaying repairs can lead to more severe issues within the vehicle's cooling system, resulting in costly repairs down the line. In extreme weather conditions, a malfunctioning AC can also pose safety risks, as it may hinder visibility due to fogging or create an unbearable environment inside the vehicle. Therefore, it is advisable to prioritize the repair of your AC system to ensure a safe, comfortable, and enjoyable driving experience.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.

2017 GMC Yukon XL AC Issues: Causes & Solutions | RepairPal