Remote Starting System - Cold Weather Operation
L-SB-0031-09
Rev1
March 24, 2009
Remote Engine Starter (RES) Cold Temperature Operation Diagnostic Tips
Service Category
Engine/Hybrid System
Section
Starting
Market
USA
Applicability
TSB REVISION NOTICE
March 18, 2010 Rev1:
^ Applicability has been updated to include 2010 model year GX 460, HS 250h, LX 570, and RX 450h vehicles.
Any previous printed versions of this service bulletin should be discarded.
Introduction
Some vehicles operated in extremely cold temperatures may exhibit a condition where the Remote Engine Starter (RES) does not function.
Before RES diagnosis confirm with the customer the ambient temperature when the malfunction was experienced.
The RES system was designed to operate at temperatures above -22 F (-30 C). Non-operation of the RES system below this threshold should be
considered a normal condition.
Warranty Information
Diagnostic Procedure
2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) Page 433
If the customer has experienced a RES malfunction above -22 F (-30 C) proceed with diagnosis referencing the applicable troubleshooting guide in
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