On certain vehicles equipped with Keyless Ignition, the Central Electronic Module (CEM) may not perform as intended. When starting the engine, the amber coloured warning light in the driver information module may illuminate and there may be a message displayed such as "Alarm System Service Required" (other messages may be displayed depending on individual vehicle equipment). In addition, one or all of the following may occur: The front windshield wipers may operate continuously while the ignition is ON. The turn signals may not function. The headlight switch may not work. The high beam headlamps may not work. The battery may drain. Correction: Dealers will upgrade the CEM software.