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The basic system uses door logic. [2] If a rear door is opened and closed and the vehicle is turned on, a dashboard alert will activate when the vehicle is then turned off and the driver begins to exit the vehicle. [3] An enhanced system, called Ultrasonic Rear Occupant Alert, also uses ultrasonic sensors. [2]
A group of tell-tales showing lights for "brake fluid", "stop lamp" and "check engine" Graphical tell-talesA tell-tale, sometimes called an idiot light [1] or warning light, is an indicator of malfunction or operation of a system, indicated by a binary (on/off) illuminated light, symbol or text legend.
It may also have in-built timers to seek and record the same for two separate daily occasions, e.g., one setting for before the morning commute, and the second for the evening return journey. These messages may then subsequently be recalled on demand by the driver. This specific function is known as TIM, or traffic information message.
A check engine light or malfunction indicator lamp (MIL), is a tell-tale that a computerized engine-management system uses to indicate a malfunction or problem with the vehicle ranging from minor (such as a loose gas cap) to serious (worn spark plugs, engine problems or a faulty oil valve, etc.).
Even more advanced devices allow users to reset engine DTC codes, effectively turning off engine lights in the dashboard; however, resetting the codes does not address the underlying issues and can in worst-case scenarios even lead to engine breakage where the source issue is serious and left unattended for long periods.
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Traffic Message Channel (TMC) is a technology for delivering traffic and travel information to motor vehicle drivers. It is digitally coded using the ALERT C or TPEG protocol into Radio Data System (RDS) [1] carried via conventional FM radio broadcasts. It can also be transmitted on Digital Audio Broadcasting or satellite radio. TMC allows ...