Battery Disconnection Question

[CivicPlease]

Hey guys! I am planning on changing out my front grill and adding fog lights to my car. I know about the oem plugs for the fog lights but I wanted to know if I Should disconnect the negative ground or both negative and positive while installing the fog lights? If I do disconnect them, once I reconnect then will I be faced with any dash lights/errors? Is there a procedure to follow after reconnecting the battery?

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[Nanook]

Really not a big deal. You may get the “Please drive carefully while system initialize” message. Drive for 30 seconds or less and it clears.

 

[CivicPlease]

Really not a big deal. You may get the “Please drive carefully while system initialize” message. Drive for 30 seconds or less and it clears.

Would it matter if I disconnect both or just the negative terminal?

 

[Nanook]

Nah. Either way the battery is disconnected.

 

[Gruber]

Would it matter if I disconnect both or just the negative terminal?

You don't need to disconnect the positive terminal.
I would cover/insulate both the negative terminal of the battery and the dangling cable after disconnecting.

Anyone tried using this sort of device "15 bucks on Amazon" to retain the memory while the battery is disconnected, so that the car starts again like nothing ever happened?

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