Question about 2000 GMC New Sierra 1500

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I have a prostart two button command starter, the battery went dead and now it won't start by the command. The led light is solid and not flashing either, but the door locks still opens from the button.I guess what I need to know is how to reprogram it ,need the codes which I don't know.

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  • 344 Answers

Your Sierra is in Valet mode, to exit turn your ignition switch to the run position and then the off position 5 times within 10sec

Posted on Feb 12, 2010

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Posted on Jan 02, 2017

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Two of my smoke alarms went off (no fire/smoke in or near house), one has a green light blinking and one has a solid green light, which need a new battery/reset?


The constant green LED means the alarm has AC power.
A flashing green light every 2 seconds without an audible alert means the unit recently sounded ( was the one activated ) and is now in latching mode to let you know that it was the unit that detected the problem. To clear the latching mode hold down the test button for 5 seconds.
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Try turning the Prostart off, then on with the little toggle switch. Check that the hood pin switch is working as it should

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Battery is new, engine won't turn over.


The voltmeter should only go as high as 14-15 volts when the engine is running. I would check for a poor connection between the battery and starter.

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Pontiac mini van 1998 transport, V6, 3.5L I left lights on and when I came back found my car battery died, I get boosted, since then my prostart two way 3 in 1 remote starter never work. Last winter I...


you will have to unhook your prostarter or get someone to replace its burnt from charge then after pro start is unhooked then put battery back in the turn key over.

Feb 13, 2011 | 1999 Pontiac Montana

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My battery went dead and i replaced it and when i re-installed it the alarm went off and it wont start now


Put the key in the ignition, and turn forward
all the way just before cranking. Then within
5 seconds, locate, press and hold in the
valet/overide button, found under the
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until the installed LED (the blinking light)
in your dash area goes on solid,
and the siren chirps once.

This should reset the alarm, and reset
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check to see if the security light or anti theft light flashes. if that is the case, sounds like the bypass for the remote starter may be causeing the no start by tripping the anti theft system. Remove remote starter and bypass system and join any cut wires back together that may be cut for remote starter. Try starting, if theft light still flashes leave key in the on position after attempted start for 15 minutes till theft light goes solid, turn off and try again. Repeat process for three times to re-learn factory theft system in vehicle. If problem still persists, then take to your local dealer to reprogram factory theft module in the cluster.

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Car want start factor security light flashing and car want start battery went dead and wont start since tried to jump start and everything won work


The factory security light will remain on - this is a standard feature indicating the car is dead.
First, unplug the hazard fuze in the engine bay (this will reset the ecu and remove the flashing)

Next, replace the battery with a new one (or one with proper charge) - keep in mind a small battery will not do anything for these cars, the engines require a lot to push them over (it isnt a honda)
*Make sure to clean the positive and negative battery cables from acid

Then just start it up :)

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