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Auto Lights - Have the ignition on, then turn the lights on and off twice and it will beep and activate the auto lights.
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Auto Door locking feature - Press and hold the door lock button untill it beeps. If you unlock the doors but don't open any of them or the boot, it will re-lock after 30seconds.
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Auto wipers - Leave the wiper switch in the 2nd position and adjust sensitivity accordingly on stalk.
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Deactivate internal alarm sensors if someone is sitting inside with the doors locked - When you have switched the engine off, turn the key on (to electrics stage) and off twice...get out of the car within 7 seconds(I think) and arm the alarm...you should hear 4 beeps. Internal sensors are now deactivated.
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Also if you hold down the SRC button on the standard stereo you get to a hidden menu with lots of different settings to fiddle with, like turning rear speakers on/off, making the volume automatically increase/decrease at certain speeds, etc.