2019-2020 Toyota Rav4 Abnormal Buzz/Groan Noise at 20 - 30 mph From Front Transfer Case T-SB-0065-21

MG

Moderator
Please see T-SB-0065-21

Applicability:

2019-2020 Toyota RAV4

SUPERSESSION NOTICE:
The information contained in this bulletin supersedes Service Bulletin No. T-SB-0019-20
The Parts Information and Repair Procedure sections have been updated. Service Bulletin No. T-SB-0019-20 is obsolete and any printed versions should be discarded.

Introduction:
Some 2019 – 2020 model year RAV4 Adventure and Limited grade AWD vehicles may exhibit an abnormal buzz/groan noise from the front transfer case at 20 – 30 mph when accelerating from a stop and/or at 20 – 13 mph on deceleration after driving the vehicle for 15 – 20 minutes or more. This condition occurs with Normal drive mode selected during disconnect/connect timing of the AWD system. Follow the procedures in this bulletin to address this condition.

NOTE:
This Service Bulletin ONLY applies to 2019 – 2020 model year RAV4 Adventure and Limited grade vehicles with torque vectoring AWD system.

Warranty Information:
R & R Front Transfer Case Electro-magnetic Clutch Assembly and Reprogram ECU

NEW PART NUMBERS:
04000-28142 and 04000-46142 Repair Kit, Transfer
00289-ATFWS Automatic Transmission Fluid WS
89630-42160 Computer Assy, 4WD *** The 4WD ECU should NOT be replaced as part of the Repair Procedure only Reprogrammed


APPLICABLE WARRANTY:
This repair is covered under the Toyota Powertrain Warranty. This warranty is in effect for 60 months or 60,000 miles, whichever occurs first, from the vehicle’s in-service dat Warranty application is limited to occurrence of the specified condition described in this bulletin.

Confirmation Procedure:
1. Confirm the vehicle exhibits an abnormal buzz/groan noise from the front transfer case during one or both of the following condition Driving at 20 – 30 mph when accelerating from a stop during AWD system disconnect timing Driving at 20 – 13 mph on deceleration during AWD system connect timing.

Does the vehicle exhibit an abnormal buzz/groan noise from the front transfer case during one or both conditions described above:
YES — Review and complete the rest of the Repair Procedure in this bulletin.
NO — This bulletin does NOT apply. Continue diagnosis using the applicable Repair Manual.

See video below at the 58 seconds mark to hear the noise...

 
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