Segment:
        
        
            Mid-size Sedan (Hybrid Variant)
        
     
    
    
        
            Key Competitors:
        
        
            Toyota Camry Hybrid, Ford Fusion Hybrid, Honda Accord Hybrid, Hyundai Sonata Hybrid
        
     
    
    
        
            Value Proposition:
        
        
            Offers a compelling blend of fuel efficiency, comfortable ride, and modern features at a competitive price point within the hybrid sedan market.
        
     
 
    
    
    
        
            Powertrain:
        
        
            Engine (2.4L GDI Theta II Hybrid), Electric Motor, Hybrid System Control, Battery Pack, Power Control Unit, Transmission (6-speed automatic with integrated electric motor)
        
     
    
        
            Chassis:
        
        
            Suspension (front MacPherson strut, rear multi-link), Steering (electric power steering), Brakes (ABS, EBD, Regenerative Braking System), Wheels and Tires
        
     
    
        
            Electrical:
        
        
            Body Control Module (BCM), Powertrain Control Module (PCM), Hybrid Control Module (HCM), Infotainment System, Lighting, Power Accessories, Wiring Diagrams, Diagnostic Trouble Codes (DTCs)
        
     
    
        
            Body And Trim:
        
        
            Exterior Body Panels, Interior Trim, Doors, Windows, Seats, Climate Control System (HVAC)
        
     
    
    
        
            Maintenance:
        
        
            Scheduled Maintenance, Oil Changes, Filter Replacements, Fluid Checks and Replacements, Spark Plug Replacement, Brake Pad and Rotor Replacement
        
     
    
        
            Repair:
        
        
            Engine Overhaul, Transmission Rebuild, Hybrid System Component Replacement (Motor, Battery, Control Module), Suspension Component Replacement, Brake System Repair, Electrical Component Diagnosis and Replacement, Body Panel Repair
        
     
    
        
            Troubleshooting:
        
        
            Diagnostic Flowcharts, Symptom-Based Troubleshooting, DTC Interpretation and Resolution, Electrical System Diagnostics, Hybrid System Fault Finding
        
     
    
    
        
            Depth:
        
        
            Comprehensive from basic preventative maintenance to complete vehicle teardown and rebuild, including detailed diagnostic procedures for the hybrid system.
        
     
 
    
    
    
        
            File Format:
        
        
            PDF (Portable Document Format)
        
     
    
    
        
            Print Quality:
        
        
            High resolution, designed for clear printing of diagrams, schematics, and text.
        
     
    
    
        
            Binding Type:
        
        
            Not applicable for downloadable format, but would be spiral-bound or hardbound if printed.
        
     
    
    
        
            Paper Type:
        
        
            Not applicable for downloadable format, but professional repair manuals typically use durable, high-quality paper.
        
     
 
    
    
    
        
            Engine Type:
        
        
            Inline 4-Cylinder Atkinson Cycle
        
     
    
        
            Engine Displacement:
        
        
            2.4 Liters (2359 cc)
        
     
    
        
            Engine Code:
        
        
            Theta II GDI Hybrid (G4KK)
        
     
    
    
        
            Combined Horsepower:
        
        
            208 hp (155 kW) - Combined output of gasoline engine and electric motor
        
     
    
        
            Gasoline Engine Horsepower:
        
        
            169 hp @ 6000 rpm
        
     
    
        
            Gasoline Engine Torque:
        
        
            154 lb-ft @ 4500 rpm
        
     
    
        
            Electric Motor Torque:
        
        
            151 lb-ft (approximate, can vary based on operating conditions)
        
     
    
    
        
            Fuel Delivery:
        
        
            Gasoline Direct Injection (GDI)
        
     
    
        
            Fuel Type:
        
        
            Unleaded Gasoline (87 Octane Recommended)
        
     
    
    
        
            Hybrid System Type:
        
        
            Parallel Hybrid System
        
     
    
        
            Battery Type:
        
        
            Lithium Polymer (Li-Po)
        
     
    
        
            Battery Capacity:
        
        
            35 kW (kilowatt output for the electric motor)
        
     
 
    
    
    
        
            Transmission Type:
        
        
            6-Speed Automatic with Integrated Electric Motor
        
     
    
    
        
            Optional Transmission:
        
        
            N/A (Standard for Hybrid Model)
        
     
    
    
        
            Transmission Features:
        
        
            Includes Hybrid Starter Generator (HSG) for seamless engine start/stop and electric-only propulsion at lower speeds.
        
     
    
    
        
            Transmission Fluid Type:
        
        
            SPIII (or equivalent approved by Kia)
        
     
    
    
        
            Transmission Fluid Capacity:
        
        
            Approximately 8.0 liters (refer to manual for exact refill quantity)
        
     
 
    
    
    
        
            NHTSA Overall Safety Rating:
        
        
            Likely 5-Star (based on the 2011-2013 Optima sedan platform, specific hybrid ratings may vary slightly but generally follow the sedan's structure).
        
     
    
    
        
            Active Safety:
        
        
            Anti-lock Braking System (ABS), Electronic Brake-force Distribution (EBD), Brake Assist System (BAS), Traction Control System (TCS), Electronic Stability Control (ESC), Tire Pressure Monitoring System (TPMS)
        
     
    
    
        
            Passive Safety:
        
        
            Front Dual Airbags, Front Side-Impact Airbags, Side Curtain Airbags (front and rear), Active Headrests, Pretensioner Seatbelts
        
     
 
    
    
    
        
            Infotainment System:
        
        
            Available touchscreen infotainment system with navigation, Bluetooth connectivity, and audio streaming.
        
     
    
    
        
            Driver Assistance Features:
        
        
            Rearview Camera, Parking Sensors (optional), Cruise Control.
        
     
    
    
        
            Connectivity Options:
        
        
            USB Port, Auxiliary Audio Input, Bluetooth Hands-Free Phone System.
        
     
    
    
        
            Hybrid Features:
        
        
            Eco Mode for optimized fuel efficiency, regenerative braking to recapture energy, electric-only propulsion capability.
        
     
 
    
    
    
        
            Oil Change Interval:
        
        
            Every 7,500 miles or 12 months, whichever comes first (using synthetic oil). Check manual for severe driving conditions.
        
     
    
        
            Air Filter Replacement:
        
        
            Every 15,000 miles or 12 months.
        
     
    
        
            Cabin Air Filter Replacement:
        
        
            Every 15,000 miles or 12 months.
        
     
    
        
            Spark Plug Replacement:
        
        
            Every 75,000 miles (specific type for GDI engine).
        
     
    
        
            Coolant Replacement:
        
        
            Initial replacement at 105,000 miles, then every 52,500 miles thereafter (for hybrid specific coolant).
        
     
    
    
        
            Engine Oil Type:
        
        
            SAE 0W-20 Full Synthetic Engine Oil
        
     
    
        
            Engine Oil Capacity:
        
        
            Approximately 4.8 quarts (4.6 liters) with filter change (refer to manual for exact fill).
        
     
    
        
            Coolant Type:
        
        
            Hybrid System Coolant (specific Kia specified type, typically a long-life inorganic acid technology coolant)
        
     
    
    
        
            Common Complaints:
        
        
            Potential for hybrid system warning lights, issues with battery cooling system, occasional transmission performance anomalies, some reports of interior rattles.
        
     
    
        
            Diagnostic Focus:
        
        
            The manual will be crucial for diagnosing hybrid specific fault codes and understanding the interaction between the gasoline engine and electric powertrain.
        
     
 
    
    
    
        
            Kia Heritage:
        
        
            Kia Motors Corporation, a South Korean automotive manufacturer, has a history dating back to 1944. It has grown significantly to become one of the world's largest automakers, known for offering value-packed vehicles with improving quality and design.
        
     
    
    
        
            Optima Generations:
        
        
            The 2011-2012 model represents the second generation (TF) of the Kia Optima, which was a significant redesign featuring Peter Schreyer's design language. The hybrid variant was introduced to compete in the growing eco-friendly vehicle market.
        
     
    
    
        
            Manufacturing Location:
        
        
            Hwaseong, South Korea (Primary)