TSB: One-Touch Start System (OSS) (FAST key - Pushbutton Start)
TSB: One-Touch Start System (OSS) (FAST key - Pushbutton Start)
Originally Posted by NHTSA | December 1, 2016
MANUFACTURER COMMUNICATION NUMBER: TSB-16-54-006
Components: ELECTRICAL SYSTEM
NHTSA ID Number: 10098641
Manufacturer Communication Number: TSB-16-54-006
Summary
THIS TECHNICAL SERVICE BULLETIN (TSB) WAS SENT TO DEALERS TO INFORM THEM THAT SOME VEHICLES WITH ONE-TOUCH START SYSTEM MAY EXHIBIT A CONDITION WHERE THE IGNITION CANNOT BE TURNED OFF WHEN BATTERY VOLTAGE DROPS. THIS TSB ALSO INCLUDES INSTRUCTION FOR DEALERS TO PROVIDE EXPLANATIONS TO CUSTOMERS REGARDING SYMPTOMS DUE TO LOW BATTERY VOLTAGE AND THAT BATTERY VOLTAGE SHOULD BE CHECKED AS PART OF ROUTINE VEHICLE MAINTENANCE.
PURPOSE Some vehicles with One-Touch Start System (OSS) may exhibit a condition where the ignition cannot be turned off when battery voltage drops. When battery voltage drops, the vehicle cannot perform CAN communication correctly and will go into the fail-safe mode. Fail-safe mode prevents the vehicle from turning the ignition off even when the ignition switch is pushed.This TSB instructs dealers to explain to customers that the battery voltage should be checked during routine maintenance, and that proper battery voltage should prevent the condition from occurring.
BACKGROUND In order to prevent the engine from stopping if the ignition switch is pushed accidentally while driving, the driving condition is being monitored via CAN (Controller Area Network) communication. If CAN communication fails, due to low battery voltage, the driving condition cannot be monitored and the vehicle enters fail-safe mode. Fail-safe mode judges the vehicle as being in a running state (even if the engine is not running), and prevents the ignition from being turned off.
SpeckOriginally Posted by NHTSA | December 1, 2016
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