Cadillac Escalade ESV air conditioning fan won't turn off after engine stops on Cadillac Escalade ESV

Some Cadillac Escalade ESV owners report experiencing issues with the air conditioning fan continuing to run even after the engine is turned off. This problem can lead to engine overheating, potentially damaging engine components. One reported cause is low refrigerant levels, which can affect the cooling effectiveness and cause the compressor to run while the fan does not shut off. Additionally, some owners have identified a faulty blower control module as a potential culprit, with replacement often resolving the issue. Others have found that a blown fuse may be responsible for the fan's failure to turn off, necessitating a check of the fuse box and replacement if needed. Furthermore, some owners may enable the afterblow mode using a scan tool, which allows the blower motor to operate post-engine shutdown to dry the evaporator core and mitigate microbial growth. Addressing these issues promptly is crucial for maintaining the vehicle's performance and preventing further complications.