Important Information: Acura has issued a service bulletin to address a judder issue in the 2013-17 RDX models. The judder is caused by deteriorated transmission fluid, which can occur when the transmission is exposed to intermittent high heat loads under specific driving conditions.
The bulletin provides a repair procedure to correct the issue, including updating the AT or PGM-FI software and flushing the transmission fluid. The procedure is detailed on pages 3-5 of the manual.
Background:
The problem is typically diagnosed as a bad torque converter, but American Honda has investigated and found that the torque converter is not the cause of the judder. The transmission is not damaged by this judder, and the issue can be corrected by updating the software and flushing the transmission fluid.
Corrective Action:
If the software has not been updated, follow the steps outlined in the bulletin to update the AT or PGM-FI software and flush the transmission fluid. If the vehicle still experiences ATF deterioration after updating the software, inspect the transmission and flush it as necessary.
It is important to note that this bulletin is intended for skilled technicians only, and the work should not be attempted by “do-it-yourselfers.”
Manual:
Download: Acura 2013-17 RDX: Judder from the Torque Converter Lock-Up Clutch Service Bulletin
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