Every specification in this 2020 Lexus ES 300h service and repair manual is tied to one exact year, engine and trim — the 2.5L four-cylinder hybrid (A25A-FXS) and the trim your car was built as — so the torque values and procedures you follow are the ones Lexus published for this car, not a neighboring model year's numbers standing in for them.
Engines
- 2.5L l4 HYBRID Naturally Aspirated
Trims
- Base
- Luxury
- Ultra Luxury
Known issues on the 2020 ES 300h. One recall is on federal record for this model year, and it covers the engine and engine cooling: porosity in the engine castings may result in cracks that can allow coolant to leak internally and/or externally. A coolant leak can cause the engine to overheat and cause a vehicle stall in conventional gasoline vehicles, increasing the risk of a crash, and on all involved vehicles the engine may get damaged mechanically, possibly resulting in an engine oil leak, increasing the risk of a fire. Owners have filed 1 complaint for the year and Lexus has issued no technical service bulletins for it. The diagnostic and repair procedures behind the engine and its cooling system are here.
From tracing a coolant leak to a cooling system pressure check or a routine service interval, it keeps you on the OEM procedure and the correct specification for this 2020 ES 300h.
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2020 Toyota Avalon Hybrid, Camry, Camry Hybrid and Lexus ES300h and 2019-2020 RAV4 and RAV4 Hybrid vehicles equipped with 2.5L 4-Cylinder engines. Porosity in the engine castings may result in cracks than can allow coolant to leak internally and/or externally.
A coolant leak can cause the engine to overheat and cause a vehicle stall in conventional gasoline vehicles, increasing the risk of a crash. Additionally, for all involved vehicles, the engine may get damaged mechanically, possibly resulting in an engine oil leak, increasing the risk of a fire.
Toyota will notify owners, and dealers will inspect and replace the engine including the engine block, as necessary, free of charge. The recall began April 3, 2020. Owners may contact Toyota customer service at 1-888-270-9371 or Lexus at 1-800-255-3987. Toyota's number for this recall is 20TA04. Lexus' number for this recall is 20LA02.
