Technical Service Bulletins

Toyota Rear Differential Needs Attention

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Toyota Rear Differential Needs Attention

Some 2019 Toyota RAV4 Limited and Adventure grade vehicles with torque vectoring AWD system may exhibit an AWD warning light ON condition, with DTC C13F800 (4WD/AWD Rear Disconnect System Performance) present.

If the rear differential production date is on or before September 17, 2019, replace the rear differential carrier assembly.

If after the afore-mentioned production date, use Techstream to confirm if the AWD ECU calibration has been updated.  If not, update with the latest ECU calibration. Confirm the rear differential production date (serial number). If not,  clear the DTC and test drive.

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