Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2019 Hyundai Sonata Plug-In HybridFACTORY OEM SERVICE PROCEDURE
Quick Lookups: Fluids
| FLUID CAPACITIES | |||||||
|---|---|---|---|---|---|---|---|
| Fluid Type | Application | Standard | Metric | Fluid Spec | Note | S/H | |
| Air Cond Compressor Oil | Gas/Electric | 4.59 OZS. | 0.13 L | POE (RB100EV) | S | ||
| Air Cond Refrigerant | Gas/Electric | 1.43 LBS. | 0.64 KG | R-134a | S | ||
| Automatic Transmission Fluid | Automatic Trans,Gas/Electric | 6.34 QTS. | 5.99 L | MICHANG ATF SP-IV SK ATF SP-IV, NOCA AFT SP-IV, HYUNDAI genuine ATF SP-IV or other brands meeting the specifications approved by Hyundai Motor Co., | S | ||
| Brake Fluid | N/A | N/A | FMVSS116 DOT 3 or DOT 4 Brake Fluid | Fluid Capacity is between: 0.74 - 0.85 qts. | S | ||
| Engine Coolant | 2.0L Eng,Gas/Electric | Engine Cooling System | N/A | N/A | 50/50 mixture of Ethylene Glycol Antifreeze and water | Capacity is between: 6.97 - 7.29 qts. The engine coolant should be compatible with aluminum engine parts. | S |
| Engine Coolant | 2.0L Eng,Gas/Electric | Inverter Coolant | 2.38 QTS. | 2.25 L | 50/50 mixture of Ethylene Glycol Antifreeze and water | The engine coolant should be compatible with aluminum engine parts. | S |
| Engine Oil | 2.0L Eng,Gas/Electric | Drain and Refill,w/Filter | 4.33 QTS. | 4.09 L | ACEA A5 or above.SAE 5W-20, SAE 5W-30 | For better fuel economy, it is recommended to use the engine oil viscosity grade SAE 5W-20 (API SM/ILSAC GF-4). | S |
| Fuel Tank | Plug-In Hybrid,Plug-In Hybrid Limited,Gas/Electric | 14.53 GALS. | 55 L | S | |||
| Windshield Washer Fluid | N/A | N/A | Use a good quality windshield washer fluid, diluted with water as necessary. | S | |||
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.