dkpath96 Posted November 5, 2014 Share Posted November 5, 2014 I recently entered the world of R51 ownership, after 12 years of driving the R50. My family is growing, and 3rd row seating was a priority. We got a 2011 SV. On the way home, I set the radio presets and adjusted the clock. When we stopped for dinner that night, we climbed back in and started down the road, then noticed that the presets were gone and the clock was wrong. No matter how many times I set these, they get reset to factory after turning off the vehicle. I checked the battery storage fuse/switch to make sure it was not in "storage" mode. Beyond that, I have no ideas. Anyone have suggestions before I return to the dealership next week? Link to comment Share on other sites More sharing options...
Bubbley11 Posted November 5, 2014 Share Posted November 5, 2014 Bad battery connection, or wire along the circuit. Mine reset when I had a bad connection. Link to comment Share on other sites More sharing options...
Terranovation Posted November 5, 2014 Share Posted November 5, 2014 Mine actually did the same thing last week. Turned the key and all the warning lights were dim, turned key off then restarted. I noticed the clock went back to 1:00 and my stereo went to it's funky demo mode, which happens when the battery cable gets removed. I tightened the negative cable and it's been good since then. Link to comment Share on other sites More sharing options...
dkpath96 Posted November 10, 2014 Author Share Posted November 10, 2014 Ok, I will check and tighten the battery cable. The dealer wants to try a software upgrade, then possibly replace the radio unit. Thankfully, all under warranty. Link to comment Share on other sites More sharing options...
dkpath96 Posted November 12, 2014 Author Share Posted November 12, 2014 I cleaned and tightened the neg cable tonight. I can still get the cable to turn a little even with the clamp screwed on to its max. In other words, I can't get it super tight. But, for the first time, the clock and radio presets were remembered, at least for a few minutes. It seems to forget them when I start the vehicle. Could it be that when I start the vehicle, the battery shakes a little and loses connection just enough to reset stuff? This seems absurdly improbable to me, but I can't think of any other way with the evidence I now have. Link to comment Share on other sites More sharing options...
Slartibartfast Posted November 12, 2014 Share Posted November 12, 2014 Maybe the battery or connection is weak enough that when you start it, and the voltage drops, the power feed to the internal memory drops too low? Link to comment Share on other sites More sharing options...
Terranovation Posted November 12, 2014 Share Posted November 12, 2014 Ok now please check the voltage with a multimeter what is the voltage with the engine running? Link to comment Share on other sites More sharing options...
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