TSB Document:

Affected Component: FORWARD COLLISION AVOIDANCE: SENSING SYSTEM: RADAR

Summary
Region Letter: The Pre-Collision System (PCS) uses a radar sensor to determine the possibility of a frontal collision. FCC regulations require the radar sensor to be temporarily inactive while the vehicle is stopped. Due to a program error in the Driving Support ECU, if the radar sensor is inactive for 10 seconds or more, the PCS may not reactivate Pre-Collision Braking on certain 2011-2014 Model Year Sienna vehicles equipped with PCS.

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Date Published
JUN 04, 2014
NHTSA TSB #
10132786
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