Toyota RAV4 Transaxle Rattle Noise Between 25 and 35 mph Repair

Some 2009 – 2011 model year RAV4 vehicles equipped with the 2AR-FE engine and four speed automatic transaxle (2WD and 4WD) may exhibit a rattle noise from the transaxle assembly between 25 and 35 mph. The Engine Control Module (ECM) (SAE term: Powertrain Control Module [PCM]) logic has been revised to address this condition.

 

Preparations:

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1-2

Procedure

1.Check for the Authorized Modifications Label affixed to the vehicle in the location shown 1.below. Confirm if the ECM (PCM) calibration has been updated.

2

Is the calibration ID listed the latest ECM (PCM) calibration?

  • YES — This bulletin does NOT apply. Continue diagnosis using the applicable Repair Manual.
  • NO — Continue to step 2.

2.Use Techstream flash reprogram the ECM (PCM).

3.Start the engine and warm it up to normal operating temperature.

4.Prepare and install the Authorized Modifications Label.

A.Using a permanent marker, enter the following information on the label:

  • ECM part number [Refer to the Parts Information section for the NEW PART NUMBER]
  • Calibration ID(s) [Refer to the Calibration Information section for the NEW CALIBRATION ID]
  • Dealer Code
  • Repair Date
  • Change Authority [This bulletin number]

B.Affix the Authorized Modifications Label to the vehicle at the location shown in Figure 1. The Authorized Modifications Label is available through the MDC, P/N 00451-00001-LBL.

5.Reset the transaxle memory prior to test driving the vehicle.

6.Test drive the vehicle to confirm proper vehicle operation and ECM (PCM) initial learning.

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