New battery won't start the car
Thread Starter
3rd Gear
Joined: Sep 2023
Posts: 3
Likes: 3
From: Osprey FL
New battery won't start the car
Hi All
New to the forum. I have a 2015 with manual transmission. I was out of town for a week and when I returned the car would not start. I watched 3 different YouTube videos on how to replace the battery. I started out with a Delco battery from the dealer. That did not work so a corvette buddy suggested I go to Costco and get an Interstate battery. The problem is the lights work, the windows work, but the car will not turn over. Pushing the start button does nothing. The green light is on but nothing happens. After a few seconds a chime sounds on. I am trying to determine if the car is in some special mode indicated by the chime. I am not able to get any information from the manual.
Has anyone else had a similar situation and if so what did you do to the get the car started. It is obviously difficult to get the car to the dealer because the doors don't unlock with RKE and I can't release the parking brake.
Thanks for any help.
Scott
New to the forum. I have a 2015 with manual transmission. I was out of town for a week and when I returned the car would not start. I watched 3 different YouTube videos on how to replace the battery. I started out with a Delco battery from the dealer. That did not work so a corvette buddy suggested I go to Costco and get an Interstate battery. The problem is the lights work, the windows work, but the car will not turn over. Pushing the start button does nothing. The green light is on but nothing happens. After a few seconds a chime sounds on. I am trying to determine if the car is in some special mode indicated by the chime. I am not able to get any information from the manual.
Has anyone else had a similar situation and if so what did you do to the get the car started. It is obviously difficult to get the car to the dealer because the doors don't unlock with RKE and I can't release the parking brake.
Thanks for any help.
Scott
Burning Brakes
Joined: Mar 2022
Posts: 1,220
Likes: 733
From: Phoenix, Arizona
Have you checked that the infamous small black wire is still properly connected to your negative ground connection? Also be checking the large fuses on the piece you removed above the negative battery post. Be sure they are not blown and the connections to them are tight.
Safety Car
Joined: Dec 2012
Posts: 3,826
Likes: 1,845
From: St. Louis Metro East IL
Make sure that the battery cable clamps are pushed down, level, and tight. If you disconnected pieces of the fuse assembly on top of the positive battery post, make sure that the metal buss bar pieces are in good contact mechanical contact with each other and tighten the bolt.
The small black wire on the negative battery clamp needs to be intact for proper voltage sensing and charging but should not prevent car start if broken.
If still no joy, check the fuses on top of the battery. Measure the voltage from the negative battery terminal or ground to the positive battery post and to each side of each fuse. You should read around 12.9 volts.
Have you replaced the fob batteries? They are only good for about 3 yr. New batteries should be about 3.29 volts. You will have problems when they get down to about 3 volts. I just change every 3 yr or if the fob starts acting up.
Will the car start if you put the fob in the steering wheel slot? If so, fob is good and fob battery is bad.
You can download a PDF version of you owner's manual using the links in C7 general | Sticky threads.
GL
Ron
The small black wire on the negative battery clamp needs to be intact for proper voltage sensing and charging but should not prevent car start if broken.
If still no joy, check the fuses on top of the battery. Measure the voltage from the negative battery terminal or ground to the positive battery post and to each side of each fuse. You should read around 12.9 volts.
Have you replaced the fob batteries? They are only good for about 3 yr. New batteries should be about 3.29 volts. You will have problems when they get down to about 3 volts. I just change every 3 yr or if the fob starts acting up.
Will the car start if you put the fob in the steering wheel slot? If so, fob is good and fob battery is bad.
You can download a PDF version of you owner's manual using the links in C7 general | Sticky threads.
GL
Ron
Last edited by RonC7; Sep 1, 2023 at 04:19 PM.
Race Director
Joined: Mar 2001
Posts: 19,911
Likes: 6,705
From: Bonneville Salt Flats
And... the battery connectors must be clean and corrosion-free. Btw, why did the dealer supplied Delco "not work?" Wrong battery or... what? Also, have you actually checked the new battery you ended up with to assure it is good? Bad new batteries do happen (don't ask). All the best, in any event... and welcome aboard. 
(and, this one: https://www.corvetteforum.com/forums...-problems.html)
(and, this one: https://www.corvetteforum.com/forums...-problems.html)
Last edited by Avanti; Sep 4, 2023 at 01:53 AM.
