Parts for your 2020 Toyota Rav4-Starter motor

2020 Toyota RAV4 starter motor: what matters for petrol and hybrid models

Based on Toyota technical sources, whether a starter motor is relevant on a 2020 Toyota RAV4 depends on the variant. Toyota’s New Car Features (NCF) and Electrical Wiring Diagram (EWD) for the 2020 RAV4 Hybrid (A25A-FXS, AXAH52/54) show there’s no conventional 12‑volt starter motor or alternator, the petrol engine is cranked by Motor‑Generator 1 (MG1) inside the hybrid transaxle. The Owner’s Manual notes the READY light and hybrid system behaviour rather than a traditional cranking sound, supporting this. For the 2020 RAV4 petrol (A25A‑FKS, MXAA52/54), Toyota’s Repair Manual “Starting System” section and the Electronic Parts Catalogue list a starter assembly as a serviceable part, so a normal starter motor is fitted.

Why the Hybrid skips a starter motor: the hybrid system uses the high‑voltage battery and MG1 to spin the engine, which is smoother, quicker and reduces wear, the 12‑volt battery mainly powers ECUs and relays. This design is documented in Toyota NCF for the RAV4 Hybrid and long‑standing Toyota hybrid architecture.

For petrol (non‑hybrid) 2020 RAV4s, here’s what the starter motor does and how to look after it:

The starter motor’s job is simple but crucial: it turns the A25A‑FKS engine fast enough for fuel and spark to take over. Hit the start button (or turn the key), the starter relay feeds the solenoid, the pinion hits the flywheel, and the engine fires. When it’s healthy, owners get a brisk, confident crank, when it’s tired, they’ll hear slow cranking, a click with no spin, or an occasional grinding noise under the bonnet.

As part of servicing, it pays to keep the starting system happy. A strong battery and clean, tight battery terminals are half the battle. Corroded earth straps and loose starter cabling can mimic a bad starter, so a quick voltage drop test across the positive and earth paths is a smart move before calling the motor itself. If the vehicle has stop‑start, the starter works harder around town, so battery condition and cabling are extra important.

• Common signs it’s time to check the starter: single click/no crank, intermittent cranking, slow crank even with a healthy battery, or grinding after the engine starts.
• Quick care tips: keep terminals clean, ensure the engine earth is sound, listen for abnormal noises, and scan for related fault codes after any no‑start event.

Replacement is straightforward for a trained tech: disconnect the battery (wait for systems to power down), access the unit from above or below depending on spec, remove the electrical connections and mounting bolts, then refit with proper torque and reconnect the battery. On high‑kilometre cars, consider replacing the starter relay at the same time. Always use quality parts and retain any shim or spacer orientation. After install, check cranking voltage and that the pinion engagement sounds clean. For owners in Australia and New Zealand clocking lots of city kilometres, getting the starting and charging system checked every 12 months or 15,000 km is a sensible, low‑cost precaution.

• Safety note: Hybrid variants contain high voltage—starter work described here applies to the petrol non‑hybrid only. Hybrid starting concerns should be handled by technicians trained in HV systems.

Popular questions about the 2020 Toyota RAV4 starter motor

Does the 2020 RAV4 Hybrid have a starter motor?

No. The 2020 RAV4 Hybrid uses MG1 inside the transaxle to start the engine, powered by the hybrid battery. There’s no conventional 12‑volt starter or alternator, which is why owners hear a smooth, near‑silent start and see the READY light instead of the usual cranking.

Where is the starter motor on a 2020 RAV4 petrol model?

On the 2.5‑litre petrol (A25A‑FKS), the starter is mounted low on the engine/transmission side. Access varies by market spec and under‑trays, most workshops reach it from underneath with the vehicle safely lifted. Always disconnect the battery before touching starter wiring.

What are the symptoms of a failing starter on a 2020 RAV4 petrol?

Tell‑tales include a single click with no crank, slow cranking despite a good battery, intermittent starting, or a brief grind as the pinion disengages. Rule out weak battery, poor terminals, or a tired earth strap first—those are common and cheap to fix before replacing the starter.