Redesign-year risk is real — only buy one with the recall and program work documented.

The gen-5 engine uses an electric water pump and a coolant flow-control valve; the valve sticks or seeps, typically around 50–70k miles. Because a stuck coolant valve isn't an emissions fault, it triggers the amber 'Engine Maintenance Required' message rather than a check-engine light — which confuses owners and shops alike. Toyota runs Customer Support Program 24TE04 covering flow shut-off valve coolant leaks on 2019–2021 RAV4 and RAV4 Hybrid. If that message is on, or the A/C is oddly weak, this valve is the first suspect — and the repair may be free under the CSP.

The 2019 RAV4 Hybrid's defining complaint: a 14.5-gallon tank that stops accepting fuel at 9–10 gallons, cutting real-world range by a third. Dealers initially shrugged ('operating as designed'), but Toyota later ran Customer Support Programs 20TE04/20TE05 — 'refueling performance' — with remedies ranging from a fuel-gauge recalibration to a new sending unit or complete tank. Mechanics describe the problem as solved history on repaired cars. On any 2019 hybrid, fill it from low during the test-drive window if you can, and check whether the CSP work was performed.

On 2019–2022 RAV4 Hybrid AWD, the underfloor high-voltage harness and rear traction-motor cable connections corrode — worst in road-salt states. Early symptom is AM radio static; end state is a hybrid-system fault or a car that won't start, and the repair is a major harness replacement. Toyota extended coverage under Customer Support Program 22TE09, but the federal complaint file shows owners at 115k–130k being denied for exceeding program limits, and one dealer warned the corrosion could pose an electrocution-level hazard if ignored. In salt-belt states, have the underfloor connectors inspected before buying any hybrid AWD — and treat unexplained AM static as data, not a quirk.

Recall 20V-064: porous engine-block castings on some 2019–2020 2.5L cars can crack and leak coolant, with engine replacement as the remedy. Mechanics urge perspective — roughly 30,500 vehicles were affected, dealers check the engine serial number, and a recall repair is free at any mileage, forever. Verify by VIN that the check was done; an inspected-and-passed car carries no elevated risk.

Structure complaints cluster around water intrusion — headliner stains, water inside door panels, and in bad cases water reaching electronics. Toyota ran a CSP for 2019–2021 roof-rail mounting-clip seal deterioration covering new clips plus interior water-damage repair. Check the headliner around the rails, sniff for mustiness, and lift the cargo floor after rain if you can.

2019–2020 Adventure/Limited AWD cars can buzz or groan from the front transfer case's electro-magnetic clutch at 20–30 mph accelerating or 13–20 mph decelerating once warmed up. Toyota issued updated parts and a CSP; mechanics say repaired cars are fixed for good. Listen for it on a 15-minute-plus test drive.

The data communication module could fail to sleep and flatten the 12V battery overnight; a software update fixed it. One wrinkle: on cars whose owners opted fully out of connected services, the fix path is more involved. Repeated dead batteries on a 2019 usually trace here — not to the battery.