Hyundai Sonata Hybrid Factory Service & Repair Manuals – Complete OEM Diagnostic & Maintenance Guides (PDF/USB)

Keep your Hyundai Sonata Hybrid running at peak performance with this official OEM factory service manual, specifically designed for the Hybrid Electric (HEV) powertrain. Whether you’re maintaining a 2020 Sonata Hybrid or the latest 2026 model, this manual delivers full support for the 2.0L GDI engine, electric motor system, and lithium-ion battery diagnostics.

Engineered for professional technicians and DIY mechanics, this manual includes factory-grade wiring diagrams, HV safety procedures, hybrid cooling system maintenance, and full troubleshooting for hybrid drive components.

Available in instant PDF download or on a USB flash drive for offline access.

⚡ Hybrid Powertrain Diagnostics & Service

Designed specifically for the Hyundai Sonata HEV, this manual offers deep repair coverage for hybrid systems:

• High-voltage battery inspection, cooling fan service, and SOC recalibration

• Electric motor diagnostics, inverter coolant flush, and DC/AC converter testing

• Hybrid Control Unit (HCU) troubleshooting with step-by-step flowcharts

• Regenerative braking analysis, brake-by-wire servicing, and blended brake system calibration

• EV mode troubleshooting, charge assist system checks, and BMS reset procedures

• Hybrid-specific OBD-II codes with full repair procedures and pinout checks

Ideal for identifying and resolving P0XXX and BMS system errors.

🛠️ Gasoline Engine & Transmission Coverage

Includes full coverage for the 2.0L GDI Atkinson-cycle engine and hybrid automatic transmission:

• Timing chain inspection, VVT solenoid testing, and oil control valve replacement

• Coolant system diagnostics, thermostat replacement, and heater core flushing

• Hybrid transmission fluid exchange, eCVT clutch service, and motor-generator unit removal

• PCV valve, EGR, and EVAP testing for fuel system efficiency

• Transmission TCU scan/reset procedures, shift logic tests, and hybrid driveline calibration

Built to factory specs—every torque value and fastener location included.

⚙️ Electrical Systems & HV Safety

Navigate the complexity of hybrid electronics with factory-level accuracy:

• Complete wiring diagrams for high-voltage and low-voltage systems

• Powertrain control module (PCM) testing, inverter cooling system service, and smart junction box checks

• 12V battery integration diagnostics, starter/alternator motor inspection, and load reduction testing

• Infotainment troubleshooting, navigation display replacement, and smart key reprogramming

• HV insulation resistance tests, glove isolation procedures, and technician safety guides

Built-in technician alerts and HV lockout procedures ensure safe repairs.

🛞 Brakes, Steering & Suspension

Hybrid Sonata models use advanced blended braking systems and lightweight suspension setups—this manual has it all:

• Brake actuator calibration, ABS fault code analysis, and brake fluid bleeding with scan tool

• Suspension arm and bushing service, shock absorber torque specs, and front/rear ride height adjustments

• Electric Power Steering (EPS) motor testing, steering angle sensor reset, and alignment data

• Low-rolling resistance tire specs, TPMS reset instructions, and wheel torque charts

Maintain smooth ride quality and precise handling the hybrid was engineered for.

✅ Why Choose the Sonata Hybrid Factory Repair Manual?

• OEM-authenticated repair procedures used by Hyundai technicians

• Covers all hybrid systems, high-voltage safety, and energy recovery components

• Includes full-color diagrams, pinouts, module locations, and system flowcharts

• Available as PDF or USB drive – ideal for garage and offline usage

• Essential for dealership techs, auto repair pros, and hands-on hybrid owners