Hyundai Veracruz air conditioner and heater failure after 30 minutes, vehicle started by itself after starter replacement on Hyundai Veracruz

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some Hyundai Veracruz owners report experiencing issues with their air conditioning and heating systems, which may stem from various underlying causes. These problems can include refrigerant leaks that result in the AC not blowing cold air, necessitating checks of the compressor, condenser, evaporator, thermal expansion valve, and drier for performance issues. Additionally, heater failures may be attributed to a broken heater blower motor, thermostat problems, or a failed blower motor resistor. Some owners also find that air pockets in the cooling system disrupt coolant flow to the heater core, particularly after recent service, and recommend bleeding the system to restore proper flow. Furthermore, since some vehicles have started by themselves after starter replacements, ensuring the electrical climate control system functions correctly is crucial to avoid related AC or heater issues. Given the complexity of these systems, a comprehensive inspection by a qualified technician is advised to accurately diagnose and resolve the performance problems in the Hyundai Veracruz.

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