2020 Kia Sedona Electrical Problems
3 owner-reported electrical complaints from NHTSA data
Data sourced from NHTSA public database. For informational purposes only. Always consult a qualified mechanic.
Electrical Recalls (1)
ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR
Kia Motors America (KIA) is recalling certain 2020 Sedona vehicles. The battery positive (B+) terminal nut on the alternator may not have been tightened properly during assembly, possibly causing it to loosen over time.
Fix: Kia will notify owners, and dealers will inspect the alternator B+ terminal nut, tightening it as necessary, free of charge. The recall began August 14, 2020. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC192.
Owner Complaints (3)
While driving on the interstate at 70 mph, your car suddenly applied the brakes on its own and triggered both the forward collision warning and check engine lights. The vehicle shut down multiple times, and after disabling all electrical accessories, you barely made it to an exit. A Kia dealership found that the wiring harness had been chewed up in several places, causing multiple electrical short circuits and warning codes. Repairing the damaged wiring harness and addressing the resulting electrical faults will be needed to restore normal operation.
Parts you may need:
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Your vehicle lost engine power while driving, with warning lights appearing on the dashboard. The dealer diagnosed a battery failure and recommended replacement, but when they test-drove the vehicle after diagnosis, the same problem happened again. This occurred around 77,000 miles. The fix will likely involve replacing the battery and investigating why a new battery isn't solving the power loss issue.
Parts you may need:
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Your 2020 Kia Sedona experienced multiple electrical and mechanical issues starting around 79,000 miles: the check engine light came on while driving, both headlights and taillights stopped working, the driver's side window got stuck in the down position, and your oil level was low. After repairs at both a mechanic and dealer (including replacing the O2 sensor, transaxle boot, headlights, and taillights), the headlight problem came back with water found inside the headlight housing. The dealer said there's no warranty coverage, and the manufacturer didn't provide additional help. Fixing this will likely require replacing the headlight assemblies, sealing any water leaks, addressing the electrical system connections, and possibly diagnosing why the check engine light triggered.
Parts you may need:
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