Manual Coverage
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Systems Covered
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Powertrain:
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Engine, Hybrid System, Transmission
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Chassis:
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Suspension, Steering, Brakes
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Electrical:
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Charging System, Starting System, Lighting, Body Electrical, Hybrid Control Modules
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Body And Frame:
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Body Panels, Doors, Interior Trim, Safety Structures
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HVAC:
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Heating, Ventilation, Air Conditioning
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Hybrid Specific:
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High-Voltage Battery, Electric Motor, Power Control Unit, Regenerative Braking
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Procedures Included
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Scheduled Maintenance:
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Oil changes, filter replacements, inspections
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Engine Repair:
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Overhaul, component replacement (pistons, valves, bearings)
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Hybrid Component Service:
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Battery pack testing and replacement, motor assembly, power inverter repair
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Transmission Service:
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Fluid changes, internal component diagnosis and repair
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Brake System Repair:
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Pad and rotor replacement, caliper overhaul, bleeding procedures
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Electrical Troubleshooting:
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Wiring diagrams, diagnostic trouble codes (DTCs), component testing
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Suspension And Steering Alignment:
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Component replacement, alignment procedures
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Diagnostic Procedures:
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Step-by-step guides for identifying and resolving issues
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Technical Depth
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Depth:
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Comprehensive (suitable for professional technicians and advanced DIYers)
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Diagnostic Charts:
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Included
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Torque Specifications:
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Detailed for all major components
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Wiring Diagrams:
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Full electrical schematics
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Special Tools:
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Identification and usage of necessary special tools
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Engine Specifications
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Primary Engine
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Engine Code:
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G4LD (2.0L Nu MPI Hybrid)
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Engine Type:
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Inline 4-cylinder, Atkinson Cycle
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Displacement:
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1999 cc (2.0 Liters)
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Bore X Stroke:
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81.0 mm x 97.0 mm
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Compression Ratio:
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13.0:1
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Performance
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Combined Horsepower:
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202 hp (151 kW)
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Gasoline Engine Horsepower:
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158 hp @ 6,000 rpm
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Electric Motor Horsepower:
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51 hp
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Combined Torque:
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232 lb-ft (315 Nm) (estimate, combined torque figures can vary)
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Fuel System
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Fuel Delivery:
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Multi-Point Fuel Injection (MPI) with Hybrid Synergy Drive
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Fuel Type:
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Unleaded Gasoline
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Fuel Tank Capacity:
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17.4 gallons
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Hybrid System
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Hybrid System Name:
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Hybrid System
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High Voltage Battery Type:
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Lithium Polymer (Li-Polymer)
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High Voltage Battery Capacity:
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Approximately 1.6 kWh
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Safety Features
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Ratings
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NHTSA Overall Rating:
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5-Star (for 2016 Optima, hybrid variant typically shares ratings)
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IIHS Top Safety Pick:
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Yes (for standard Optima, depends on specific options)
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Active Features
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ABS:
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Anti-lock Braking System
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Esc:
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Electronic Stability Control
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Traction Control:
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Yes
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Forward Collision Warning:
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Available (on higher trims)
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Blind Spot Monitoring:
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Available
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Rear Cross Traffic Alert:
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Available
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Passive Features
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Airbags:
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Front, side, curtain airbags
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Seatbelts:
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3-point with pretensioners
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Technology Features
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Infotainment
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System Name:
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UVO Infotainment System (UVO eServices)
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Display Size:
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Typically 7 or 8 inches (depending on trim)
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Features:
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Touchscreen, Bluetooth, USB, Aux input, Satellite Radio, Navigation (optional)
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Driver Assistance
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Adaptive Cruise Control:
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Available
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Lane Departure Warning:
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Available
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Automatic Emergency Braking:
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Available (often bundled with FCW)
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Connectivity
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Smartphone Integration:
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Basic functionality through Bluetooth/USB, no Apple CarPlay/Android Auto in this model year.
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Uvio Eservices:
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Remote diagnostics, emergency assistance, vehicle tracking.
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Maintenance
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Service Intervals
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Oil Change Interval:
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Typically 7,500 miles or 12 months (refer to manual for specific conditions)
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Tire Rotation:
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Every 7,500 miles
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Cabin Air Filter:
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Every 15,000 miles or 12 months
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Engine Air Filter:
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Every 30,000 miles
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Hybrid Battery Check:
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As per manual diagnostics, generally requires specific service if issues arise.
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Fluid Specifications
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Engine Oil Type:
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SAE 0W-20 API SN / ILSAC GF-5 (Synthetic)
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Engine Oil Capacity:
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Approx. 4.8 quarts (4.5 Liters) with filter
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Coolant Type:
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Hyundai/Kia Long Life Coolant (Blue) or equivalent (Ethylene Glycol based)
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Transmission Fluid Type:
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Kia Genuine ATF SP-IV or equivalent (Specific hybrid transmission fluid, refer to manual)
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Brake Fluid Type:
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DOT 3 or DOT 4
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Known Issues
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Hybrid Battery Degradation:
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Potential for reduced capacity over time (common in all hybrids).
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Transmission Hesitation:
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Occasional reports of minor hesitation or rough shifts.
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Infotainment System Glitches:
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Minor software-related issues can occur.
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Engine Oil Consumption:
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Rare cases, but some 2.0L Theta engines can exhibit higher than normal consumption.
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