09 scud battery install?

09 scud
I want to change/ install new battery. What's the protocol/steps?
Do i need to turn battery switch off prior? Once new battery is in anything else needs to be done to regain original settings?
Thanks in advance

 

obtain radio code
unlock car
drop windows
open hood
kill the battery with cut-off switch in the trunk
change battery
unlock battery cut-off switch
click remote three times
key on ignition for 30 seconds with accessories on
enter radio code

 

Excellent. Thank you

 

this is why I love this forum...

 

what battery did you use?

 

I used factory battery. Optima
Bought it at autozone.

 

I would highly recommend removing the negative cable first. That way if you accidentally touch something metal with your wrench while removing the positive cable nothing bad can happen. Touching ground while removing the negative cable has no consequences. I remember removing a battery terminal on my 1969 Triumph Herald. The nut on the positive clamp came loose a little too easy and the wrench (spanner in that case) hit the body. Let me tell you, that spanner got really hot in a hurry.
Reverse order for install -- positive first.
Also depending on what make of battery you get you need to ensure that the drain/vent tube needs to be reinstalled.
Alan

 

was it a red top?
34-78 part #?

THX

 

Very good advice.

 

I was told that an Interstate battery does not fit in the scud battery compartment and that only the Optima fits. I was quoted $350 for an Optima battery by the dealership. What is the price of your Optima?

 

around $200 from autozone

 

Can you attache a 9V battery to retain the codes?

 

If you use a 9v battery you have to connect it before cutting the power and I'm not sure it would be happy being fed 12v. I wouldn't take the risk as there's only one code -- for the radio and it's easy to do.
Alan

 

Why not with the new battery? Parallel the new battery with the old battery using wire with alligator clips, disconnect old battery, then connect new battery, then disconnect paralleling wires. This way the car never loses power. Used this method on my BMW and it works just fine.

Cheers, Andy

 

An even better idea, simple and excellent!