Disconnecting battery question

[Oilman77]

So I need to replace a sensor so I have to disconnect the battery. Does my radio lose its memory, like updates I’ve done to it? Also I bought the rough country speedometer tuner. Would unplugging the battery mess with any of that? It’s the first time I’ve had to actually work on the truck besides normal maintenance.

 

[clifford15]

The radio does not loose its memory. Chances are your speedo correction will be good also. Not like a Dart that throws CELs when the battery is disconnected.

 

[Tach_tech]

What sensor are you replacing? Unless it’s an airbag related part you’ll be fine leaving the battery connected.