If you own a 2019 Optima, you've likely heard about Kia's engine problems. The 2.4L Theta II engine has been subject to recalls and warranty extensions due to connecting rod bearing issues. Understanding your coverage and the warning signs could prevent you from being stranded—or worse.
The Theta II Engine Issue
Certain Theta II 2.4L engines manufactured during specific periods may have issues leading to connecting rod bearing wear and potential engine seizure. Kia's response includes:
- Multiple recall campaigns
- Extended warranty coverage
- Knock Sensor Detection System (KSDS) software
- Class action settlements
What P1326 Means
The P1326 code is triggered by Kia's KSDS—a software system designed to detect early signs of bearing failure through abnormal engine noise patterns. If you see P1326:
- The system detected sounds consistent with bearing wear
- The engine may enter reduced power mode
- Immediate dealer inspection is needed
Warning Signs to Watch
- Engine knocking or rattling noise
- Check engine light (especially with P1326)
- Rough running or vibration
- Sudden loss of power
- Stalling
- Oil pressure warning light
Extended Warranty Coverage
Kia has extended engine warranty coverage on affected vehicles:
- Original owners: Up to 15 years/150,000 miles
- Subsequent owners: Up to 10 years/100,000 miles
Check your VIN at Kia's website or with your dealer to confirm coverage.
Immediate Actions If Warning Signs Appear
- Check oil level immediately
- Document symptoms and mileage
- Contact Kia dealer for inspection
- If knocking is severe, consider towing
- Keep all service records
If Engine Fails
- Stop immediately if safe
- Do not attempt restart
- Call Kia roadside assistance
- Request tow to authorized dealer
- Document everything for warranty claim