I know this has came up before.
In sept my 17 vert battery will be 3 years old, I'm thinking it may need to be changed out. Do most just have the dealer do it? If so I will take it to the cadillac dealer where my wife gets her car serviced because they will do the key fobs free of charge.
Or is there a better battery then what GM has
Our Florida heat can and will take a toll on batteries

 

You will get plenty of opinions with respect to what battery and who to do the work. In my opinion, the original battery was designed for the car so I went with that. I've read that the replacement is one small level above a no brain-er (something to do with the multiple connections to it) and since I have not done it before in a C7 I had the dealer do it. Chevy dealer that is as they are experienced in that exact job.

Not sure what you meant about the key fob. I didn't lose anything when my battery was changed.

 

The chevy dealer where I take my car for service wont change the battery in the fob. The cadillac dealer where my wife goes does it for free. My thinking is the car battery and the key fob should be freshened up at the same time.
I'm thinking the same as you let the dealer change the battery in the car.
I don't get the range on my fob like it used to like remote start or putting the top down with the fob

 

You probably have another year or so of life left in your battery, however if you feel you need to change it I would recommend replacing with the same model Delco as in it now. I've used Delco batteries in all my Corvettes over the years.
I base this opinion on my owning/operating a chain of auto parts stores over 16 years and buying/selling/warranting literally thousands of batteries of several brands over the years.

 

Good idea to change out the FOB battery after 3 years on BOTH FOBs 1 and 2. Total cost, < $4. Easy to do yourself. As to the car battery my ‘14 C7 (build 10/13) had the original one until this past March, 5yr 5mos Old, And always on a tender in the garage. Pennsylvania weather. For the ~$40 I had the Chevy Dealer do it, Corvette Tech, as they are experienced. 45 min job. Total cost just over $200. Not so sure a Cadillac Tech would be as proficient with all the steps to access the battery location in the C7’s back. Many C7 owners do this job themselves, but it wasn’t worth the trouble to me. FIND A CHEVY DEALER THAT HAS A QUALIFIED CORVETTE TECH.

PS: I did as Kevin says above and stayed with AC Delco. AND the Corvette Tech did a multi-point inspection and reset what needed to be reset (window indexing?) If was needed.

 

Get a dated battery and toss the old battery,but by exact replacement a Corvette shop local will do it for you. As far as the remote battery i have had mine for ten years but source a replacement and keep it in your glove compartment when needed, Good Luck! Now is the time to start a good contact like a local Corvette shop when you have needs.

 

Hmm, looks like you have a question about both.

I replaced my car battery in 3 years, did it myself and have a PDF detailing how. But since you are not going to change your FOB battery you no doubt are not a a do it ourselver so won’t post the Link.

If it’s the 1st time even a great Caddy tech changes a C7 battery, good chance he’ll rip the carpet. A number of posts where Chevy Dealer tech did! For sure if you call AAA when the battery fails, that tech will rip the carpet!

I remove the bottom clips on the passenger side plastic wheel well cover to get that section of unbound carpet out from under. Easy to do with your fingers. In fact if I had a Dealer do it (no way) I would pop those two lower clips first and leave it lose!! BTW I bought a better than OEM Battery an AGM with 20% more cold cranking amps.

You’re on borrowed time with the FOB batteries. I change now at 2 years after I found both FOBs in 3 would not open the door. When I finally got one to open had to put the FOB in the slot on the steering column I to start it. Advise reading the manual to find out how or you could get stuck somewhere. BTW one of my FOBs was never used,sat in the draw for 3 years. Batteries go if used or not!

The FOBs need fresh, quality batteries. Bought some cheap ones on Amazon that only lasted a year. Not that hard to change FOB batteries, it’s outlined in the Owner’s Manual but then So is how to check oil level etc!

 

I replaced mine last week, also in a vert, its a tight fit but if you choose to do it look at http://netwelding.com/Battery_Issues.pdf as well as other threads to get an idea of whats involved.

 

A side note to pulling the car onto a flatbed is that an experienced tow truck driver will use straps instead of chains, as the front end to ramp clearance is very tight, and chains are likely to damage the front end... I bought a custom bridle from evilBay to avoid the damage that occurred when the driver had only chains when he pulled my '17 onto a flatbed ...

 

Did you buy this one? (couldn't get your link to work) I agree, Cheap insurance.

 

I would have the Chevy dealer install the new battery and use the same model that is used from the factory. As for the fob batteries both of mine went dead just short of 3 years. Pain in the butt getting them open but with a bit of patience you can do it yourself.

 

I replaced the battery in my Roadster myself. Compared to replacing the C4 Battery, it was a cinch!

It also enabled me to find the fuse box in the trunk.

The trick is to take the whole carpet out of the trunk. Fortunately, there are only three fasteners holding it in. If you slip a plastic body panel pry bar between the carpet and the body, it comes right off. Then a little jiggling gets the carpet out. It makes it a lot easier to change the battery. I took pictures of the entire battery removal and replacement, if anyone is interested, I can do a thread.

Here are the tools I needed.

I have the two different sockets for the replacement. To make it easier, I put the smaller 10mm socket on the 1/4" Drive and the 13mm socket on the 3/8" Drive. That way I always knew which one to pick up.




The Carpet coming out



Here are where the fasteners are located.




Here is the carpet out of the trunk.



It always helps to having someone reading the directions to you! This is what it looks like without the carpet. You see the RPO Sticker and the Fuse Diagram. This plastic cover plate is not attached and surprisingly lifts right off.



This is what you see when you lift it off.




Fuse Box Close-ups







That is all, folks!

 

It had not occurred to e to simply remove the carpet. nice idea.

Do all models come with a black cat overseeing the fuses and battery?

 

It's a very, very simple swap. Save big $$$s DIYing it. Sears Diehard is my preferred brand. On-sale @ Advanced Auto Parts. Longest lasting battery I've ever had! ALL my diesel vehicles have 6+ year old Sears Diehards in them. Still voltage good as new!

 

Vette jockey... Excellent job & photos showing how to do this job... Love the cat reading directions.

 

Kinda old thread but it looks like a good opportunity to add some sound deadening.

 

In the convertible (which the above is), you don't really need any sound deadening, in a coup a good idea.

 

Mine did.

 

Yep old Thread. Have followed C7 noise reduction since I got my early 2014 Z51 and then had a 2017 GS. That bottom hatch area is made of composite and not the real noise issue. It's all the thin aluminum behind he seats and on the tunnel. Acts like speaker diaphragms! Crazy Cowboy has the best double layer noise reduction kit but lots of work to install. All carpeting and seats have to come out. Some even go further and remove the door panels and put sound insulation behind- a real PIA.

In the end it's a help BUT from some reports not that dramatic. I used a simple method that worked for me. The sound system started playing >1000 songs in shuffle mode from a thumb drive at high volume when I started the car.

BTW the C8 is so much quitter it's hard to believe! Sound system still starts hen I start the car but at a lower volume and can actually hear the words! However don't hear NPP exhaust unless at WOT and it's set to "always Track." Bit of a downside but overall my wife has ridden in the C8 in the 3 1/2 months I have it more than she did in the 7 years of C7s!