pmf Posted January 2, 2007 Share Posted January 2, 2007 Hi, I am new to the forum & would like to know if I can change the battery on my 98 GS 400 myself when the time comes for it to quit on me? Reason I ask is 'cause my last one (original with the car) lasted exactly 4 years, 1 week before my warranty runs out. And if so other than loosening/tightening/cleaning of the terminals & the battery swap is there anything else different than that with any other cars do I need to do to avoid messing up the ECU/remote memory storage/setting. etc? For I recall the dealer always asked for both of my remotes everytime when I bring the car in for service with anything involving the ECU. Thank you & glad I found this forum. PF Quote Link to comment Share on other sites More sharing options...
slate67 Posted January 3, 2007 Share Posted January 3, 2007 Hi, I am new to the forum & would like to know if I can change the battery on my 98 GS 400 myself when the time comes for it to quit on me? Reason I ask is 'cause my last one (original with the car) lasted exactly 4 years, 1 week before my warranty runs out. And if so other than loosening/tightening/cleaning of the terminals & the battery swap is there anything else different than that with any other cars do I need to do to avoid messing up the ECU/remote memory storage/setting. etc? For I recall the dealer always asked for both of my remotes everytime when I bring the car in for service with anything involving the ECU. Thank you & glad I found this forum. PF I replaced the one in my 98 GS400 last January and did not do anything special. It was down to the point of not turning the engine over and I removed the dead one and placed a new one in it. Had no issues with my remotes but at start up the engine was idling oddly for a few minutes as I recall. Seemed to be doing some type of electronic adjustments. Have had no issues over the past 12 months related to electrical or remotes. As a disclaimer, I am not a mechanic. I know there are gurus on this site and I will defer to them if their response differs from mine. Good luck. Quote Link to comment Share on other sites More sharing options...
GuyTelefunken Posted January 4, 2007 Share Posted January 4, 2007 The only thing you may lose is the radio presets and seat/mirror memory. As slate67 suspected, the idle and initial driveability may be a bit odd as the ECM reestablishes adaptive settings. Keys do not lose their programming during a battery change. Quote Link to comment Share on other sites More sharing options...
pmf Posted January 4, 2007 Author Share Posted January 4, 2007 Thank you guys for I'm looking forward to doing some of the routine replacement/maintainance if at all possible since the car is way past warranty yet still has very low mileage. In fact after I posted the ? on this thread I began reading some of the other posts & ended up buying a copy of it's service manual (CD-R) off ebay. AS a side note, any of you had test driven the IS350? I was @ my local Lexus dealership day before X'mas, they were so busy that I wandered around for over half an hour without being noticed. After squeezing a quick answer from one of the passing-by saleman about how they kept the IS in another lot away from the dealership I left & went to Infiniti. PF Quote Link to comment Share on other sites More sharing options...
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