Hyundai Sonata driver's side tail light stays on and air conditioner blower not working after battery and alternator replacement on Hyundai Sonata

Some Hyundai Sonata owners report experiencing issues where the driver's side tail light stays on, potentially due to a faulty tail light switch, a malfunctioning tail light unit, or frayed wiring. These problems may arise if the tail light switch is damaged or if there is corrosion in the connectors or a bad engine compartment fuse block. Additionally, some owners have reported that the air conditioner blower does not work after a battery and alternator replacement, which could be linked to electrical issues that occurred during the replacement process. It is advisable for these owners to check the fuse related to the blower motor and inspect the blower motor itself for damage or test the blower motor resistor for functionality. Systematic troubleshooting is essential to identify and resolve these issues, and if problems persist, seeking help from a qualified mechanic or Hyundai service center is recommended.