IsItAGoodCar
Reliability Guide

Common Problems with the
2020 Toyota RAV4 Mk5 (XA50)

We've identified 3 known issues that can affect the 2020 Toyota RAV4 Mk5 (XA50). 2 of these are serious faults that could be expensive to repair.

3
Known Issues
2
Serious
1
Moderate
0
Minor

All Known Issues

Rear Motor Cable Corrosion ("Cablegate")

SeriousElectrics & Electronics

The high-voltage cable connector for the rear motor corrodes due to road salt exposure. A redesigned "open" connector was introduced late 2022.

Est. Repair Cost: £800–£3,500
Warning Signs:

"Hybrid System Malfunction" warning, Loss of AWD, AM radio interference

What to Inspect:
  • Look for the revised connector cover or evidence of cable replacement
Verified by IsItAGoodCar Research Team

CAN Bus Injection Theft

SeriousElectrics & Electronics

Thieves access the vehicle’s wiring through the front wheel arch to bypass the immobiliser.

Est. Repair Cost: £300 (Protection plates)
Warning Signs:

Vehicle stolen without keys

What to Inspect:
  • Check if aftermarket security plates or a "Can-invader" protector have been fitted
Verified by IsItAGoodCar Research Team

Coolant Bypass Valve Failure

ModerateCooling System

The valve that regulates engine coolant flow can leak or stick, triggering a warning light.

Est. Repair Cost: £300–£600
Warning Signs:

"Engine Maintenance Required" message, Slow cabin heating, Coolant loss

What to Inspect:
  • Check the coolant level and look for "Engine Maintenance" warnings on the dash
Verified by IsItAGoodCar Research Team

Buying Tips for 2020 Toyota RAV4 Mk5 (XA50)

  • Verify if the rear motor cable connector has been inspected or replaced (Cablegate).
  • Check if a "Can-invader" or steering lock is used, as the RAV4 is a frequent target for CAN bus injection theft.
  • Service at a main dealer to activate the Toyota Relax warranty, which is vital for covering expensive hybrid components.
Check a 2020 Toyota RAV4 Mk5 (XA50) by Registration