lovlex Posted December 17, 2007 Share Posted December 17, 2007 Hi, after leaving my lights on for a few minutes in my 98 LS400, it drained my battery. after letting the car sit for a few minutes, the car finally started. once it started, the VSC light and the Check VSC warning light came on. when i took off, the car had little take off power, like the transmission was not working properly. the lights were still dim from the battery run down. after pulling over and letting the battery build up, the car then ran fine and the transmission did fine. both warning lights went out as well. is this because of the battery running down and maybe affecting the computer until it had full power again?????? thanks, adam Quote Link to comment Share on other sites More sharing options...
1990LS400 Posted December 18, 2007 Share Posted December 18, 2007 A page (180) in the 2000 LS400 owners manual is dedicated to resetting/calibrating the VSC system and eliminate the warning message. The same thing happened in my 2000 LS400 the last two times the battery failed. I did not have to follow the procedure described in the manual when I replaced my battery - it apparently reset on its own. It did, however, take a day or two for the VSC message to stop re-displaying. Quote Link to comment Share on other sites More sharing options...
lovlex Posted December 18, 2007 Author Share Posted December 18, 2007 and this causes the transmission to act funny? thanks Quote Link to comment Share on other sites More sharing options...
1990LS400 Posted December 18, 2007 Share Posted December 18, 2007 and this causes the transmission to act funny?thanks ECT = electronically controlled transmission. It needs electricity to work properly. Quote Link to comment Share on other sites More sharing options...
lovlex Posted December 19, 2007 Author Share Posted December 19, 2007 and this causes the transmission to act funny?thanks ECT = electronically controlled transmission. It needs electricity to work properly. thanks for your help, heading to buy a new battery today. thanks again :-) Quote Link to comment Share on other sites More sharing options...
cardona6569 Posted January 10, 2008 Share Posted January 10, 2008 When you VSC light goes on and it is nothing wrong in the car, you as a owner must interpret it as a battery warning, that is how my battery started to decay. As soon as it was replaced had not seen or heard of a VSC light anymore than two seconds when it is started. This is as long as you do not have any failures withing the system. In some GM models this is reflected by the ABS light staying on, with nothing wrong with the ABS. CPR Quote Link to comment Share on other sites More sharing options...
eatingupblacktop Posted January 11, 2008 Share Posted January 11, 2008 Before buying a new battery, I would make sure the old one needs replacing. The shop can tell you if it can hold a charge and what kind of cranking power it has under load. I would also check to see that your alternator is providing enough current and voltage and that your belt is nice and tight. Quote Link to comment Share on other sites More sharing options...
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