2015 Hyundai Veloster Heater Isn't Working

Common Causes of Heater Issues in Your 2015 Hyundai Veloster and How to Resolve Them

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Reviewed by
Andrew Hajjar
Written by RepairPal Car Genius
Updated January 14, 2025
0%
31% chance it's the
Heater Blower Motor
0%
18% chance it's the
Heater Blower Motor Resistor
0%
51% chance it's
Something else
The most common reasons a 2015 Hyundai Veloster heater isn't working are a broken heater blower motor, a problem with the thermostat, or a failed heater blower motor resistor.
  • Heater Blower Motor: A faulty heater blower motor can result in inadequate airflow or no air coming from the vents, often due to electrical issues or motor failure.
  • Heater Blower Motor Resistor: A faulty heater blower motor resistor can cause inconsistent fan speeds or complete failure of the blower motor.
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 heater issue in a 2015 Hyundai Veloster?

To effectively diagnose a heater issue in your 2015 Hyundai Veloster, start by gathering detailed information about the symptoms you are experiencing. This initial step is crucial as it helps narrow down potential causes. Next, check for common issues such as low coolant levels, air pockets in the system, or a malfunctioning thermostat, as these are often the culprits behind heating problems. Ensure that the cooling system is properly filled and bled to facilitate efficient coolant circulation. If the heater fails to activate, inspect the blower motor and associated wiring for faults. Additionally, verify that coolant is reaching the heater core; if it isn’t, there may be blockages or issues with the core itself. If you notice that the temperature dial is stuck between hot and cold, the blend door might not be functioning correctly, affecting the air temperature. Finally, consult any Technical Service Bulletins (TSBs) related to your vehicle for insights on known issues and recommended fixes. If all else fails, consider replacing the heater control unit following the manufacturer’s guidelines. By systematically addressing these areas, you can effectively diagnose and resolve heater issues in your Veloster.

What are the common problems that could cause the heater to stop working in a 2015 Hyundai Veloster?

When your 2015 Hyundai Veloster's heater stops working, it can be frustrating, especially during colder months. One of the most common culprits is low coolant levels, which can prevent the heater core from receiving the necessary fluid to generate heat. It's essential to regularly check your coolant levels and top them off as needed. Another issue could be air pockets trapped in the cooling system, which can obstruct the flow of coolant to the heater core. If you suspect this, you may need to bleed the cooling system to remove any trapped air. Additionally, a malfunctioning heater core can significantly impact heating performance; if you notice a sweet smell inside the cabin or coolant leaks, this may be the issue. An airlocked cooling system can also disrupt coolant circulation, so ensuring proper flow is crucial. Lastly, a faulty thermostat may not regulate engine temperature effectively, leading to inadequate heating. By understanding these common problems, you can take the necessary steps to diagnose and potentially fix the heater issue in your Veloster, making it a manageable DIY project.

How urgent is it to address the non-functioning heater in a 2015 Hyundai Veloster?

Addressing a non-functioning heater in your 2015 Hyundai Veloster is not just a matter of comfort; it is a pressing safety concern that should be dealt with promptly. A malfunctioning heater can lead to dangerously cold cabin temperatures, which can impair your ability to drive safely during winter months. Additionally, neglecting to fix issues such as a faulty thermostat or low coolant levels can result in more severe problems, including engine overheating or damage to the heater core. These complications can escalate repair costs and lead to inconvenient breakdowns. Furthermore, a heater that fails to circulate warm air can also affect defrosting capabilities, reducing visibility and increasing the risk of accidents. Therefore, it is crucial to diagnose and repair any heater issues as soon as they arise to ensure your vehicle remains safe and reliable on the road.

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2015 Hyundai Veloster Heater Not Working: Causes & Solutions