Wipers/Washers - Auto-Wipers Activate Without Rain
L-SB-0140-11October 25, 2011
Auto Wipers Activating Without Rain
Service Category
Vehicle Exterior
Section
Wiper/Washer
Market
USA
Applicability
Introduction
Some 2011 RX 350 or RX 450h vehicles equipped with the Auto Rain Sensing Wipers may exhibit a condition where the wipers sweep when there is no rain while in the "AUTO" mode. Use the following procedure to replace the rain sensor to address this condition.
Warranty Information
Parts Information
Production Change Information
This TSIB applies to vehicles produced BEFORE the Production Change Effective VINs shown.
Repair Procedure
1. Confirm the vehicle exhibits the condition as described in the introduction.
2. Verify whether the vehicle has a Lexus original equipment windshield or an aftermarket installation.
NOTE
^ This TSB does not apply to Non Lexus original windshields.
^ If the vehicle windshield is not Lexus original equipment, the rain sensor may NOT operate properly due to variations in the glass, tinting, etc.
3. Replace the rain sensor. Please refer to the Technical Information System (TIS) 2011 RX 350 or RX 450h Repair Manual.
4. Confirm proper wiper operation.