I posted a similar question before, and got some tips on changing my
coolant sensor, but I am still not sure about the battery after
So, my Factory Service Manual for my 2001 Impala basically says to note
the radio station presets, and disconnect the battery negative lead.
For re-connect, it says to be sure all lights are off, key is out of
ingnition, and connect negative cable and torque to whatever spec. Then
program the radio presets and set the clock.
I thought I had to re-program the keyless entry, alarm settings, oil
life system, radio codes, etc, etc, etc?
Again, I am changing out the coolant sensor. That is straightforward,
it is the battery re-connect that has me gun shy.
Thanks for any help and your replies.