If I replace the battery in an '04 Explorer, I am fairly sure I will have to re-program the radio, but will I also have to re-set the keyless entry security codes as well ?
Thanks
Replacing battery in an '04 Explorer
Dec 11, 2010
5 Replies
Go buy a memory saver that plugs into the cigar lighter and you won't have to worry about it. It's a 9 volt battery connected to a cigar lighter plug. Holds the memory while you swap the battery. I have one that I made out of a plug and a special 12 volt photo battery.
Radio - yes. Keyless entry - (if its factory) no.
I wonder why car radios don't use nvram for stations settings?
Went ahead and swapped the battery w/o a memory saver of any type. Found one at the local Auto store, but they wanted $20 for a unit that accepted a 9v as well as leads for another batter. Didn't do it, not for one swap every 4 yrs.
Did not loose the security settings, did loose the radio stations, clock and the trip-odometer.
Thanks
Trip-odometer is unexpected. Most cars preserve that.
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