The problem
Kia Motors America (Kia) is recalling certain 2017-2018 Optima Hybrid and Optima Plug-In Hybrid vehicles. The connecting rod bearings inside the engine may wear prematurely, which can result in engine damage.
The risk
A damaged engine can increase the risk of a fire or it can cause an engine stall, increasing the risk of a crash.
The fix
Dealers will inspect the engine. If bearing damage is found, the engine will be replaced. Dealers will also install a software update containing a Knock Sensor Detection System (KSDS). Repairs will be performed free of charge. Owner notification letters were mailed November 29, 2021. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC218.
Recall details
| NHTSA campaign | 21V-844 (21V844000) |
|---|---|
| Manufacturer number | SC218 |
| Manufacturer | Kia America, Inc. |
| Component | Engine |
| Report date | October 29, 2021 |
| Owners notified | November 29, 2021 |
| Vehicles affected | 10,731 |
| Initiated by | NHTSA investigation |
Vehicles covered
Owner complaints about the engine & cooling
Frequently asked questions
Is the recall 21V-844 repair free?
Yes. Kia dealers will fix the problem at no cost: Dealers will inspect the engine. If bearing damage is found, the engine will be replaced. Dealers will also install a software update containing a Knock Sensor Detection System (KSDS). Repairs will be performed free of charge.
How do I know if my car is included?
Not every vehicle of the listed model years is affected — the recall covers 10,731 vehicles built in a certain window. Check your 17-character VIN with our VIN recall check or at nhtsa.gov/recalls.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.