Maintenance Schedule

2016–2020 Kia Optima Maintenance Schedule

Complete OEM preventive maintenance intervals for the Kia Optima, organized by service category.

2016–2020 Kia Optima

Optima — 2.4L NA (LX/EX trims)

GDI

Engine

2.4L

Theta II 2.4L GDI (G4KJ)

Transmission

6-Speed Automatic

Drivetrain

FWD

Alignment & Steering
Wheel Alignment
15,000 mi~15 mo
Steering Angle Sensor Calibration
15,000 mi~15 mo
Engine
Fuel Injection Service
15,000 mi~15 mo
Spark Plugs
60,000 mi~60 mo
Drive Belt Replacement
75,000 mi~75 mo
Throttle Body Cleaning
60,000 mi~60 mo
Transmission
Automatic Transmission Fluid
30,000 mi~30 mo
Fluids
Brake Fluid Exchange
15,000 mi~15 mo
Coolant Exchange
30,000 mi~30 mo
Climate
A/C Service
60,000 mi~60 mo

2016–2020 Kia Optima

Optima — 1.6T (LX Turbo trim)

TurboGDI

Engine

1.6L

Gamma 1.6 T-GDI (G4FD)

Transmission

7-Speed Dual-Clutch (DCT)

Drivetrain

FWD

Alignment & Steering
Wheel Alignment
15,000 mi~15 mo
Steering Angle Sensor Calibration
15,000 mi~15 mo
Engine
Fuel Injection Service (GDI)
15,000 mi~15 mo
Spark Plugs
45,000 mi~45 mo
Drive Belt Replacement
75,000 mi~75 mo
Throttle Body Cleaning
60,000 mi~60 mo
Transmission
Automatic Transmission Fluid
30,000 mi~30 mo
Fluids
Brake Fluid Exchange
15,000 mi~15 mo
Coolant Exchange
30,000 mi~30 mo
Climate
A/C Service
60,000 mi~60 mo

2016–2020 Kia Optima

Optima — 2.0T (SX / SXL trims)

TurboGDI

Engine

2L

Theta II 2.0 T-GDI (G4KH)

Transmission

6-Speed Automatic

Drivetrain

FWD

Alignment & Steering
Wheel Alignment
15,000 mi~15 mo
Steering Angle Sensor Calibration
15,000 mi~15 mo
Engine
Fuel Injection Service (GDI)
15,000 mi~15 mo
Spark Plugs
45,000 mi~45 mo
Drive Belt Replacement
75,000 mi~75 mo
Throttle Body Cleaning
60,000 mi~60 mo
Transmission
Automatic Transmission Fluid
30,000 mi~30 mo
Fluids
Brake Fluid Exchange
15,000 mi~15 mo
Coolant Exchange
30,000 mi~30 mo
Climate
A/C Service
60,000 mi~60 mo

Need VIN-specific results?

Use our interactive service schedule lookup for results tailored to your exact vehicle configuration, including AWD and trim-specific intervals.

Frequently Asked Questions

What maintenance does a Kia Optima need?

The Kia Optima requires regular preventive maintenance including alignment checks, fluid exchanges (brake fluid, coolant, transmission fluid), and periodic part replacements like spark plugs and drive belts. See the full schedule above for OEM-recommended intervals.

How often should I service my Kia Optima?

Service intervals vary by component. Alignment and brake fluid are typically every 12,000–15,000 miles, while spark plugs and drive belts can last 60,000–105,000 miles. Follow the mileage-based intervals in the schedule above, and convert to months at roughly 1,000 miles per month for average driving.

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Based on OEM owner's manual recommendations under normal driving conditions. Severe-duty or heavy-use vehicles may require shorter intervals. Always consult the owner's manual for the definitive schedule.