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2015 Impala Changed Battery, won't start, power windows, lights, radio works

I changed the battery on my 2015 Impala LT. It was the most difficult battery change I've encountered...very tight.

Anyway, the car won't start now. Lights, radio, headlights, power windows work. Any ideas?

The car did not start after I initially changed the battery. We checked connections, still no start. Then we took the cover off the "fuse box" to the upper left of the battery and pushed in all the fuses. The car alarm came alive. I then was able to start the car.

A day later, car won't start in the Costco parking lot. Radio, electric windows, etc work fine.
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Quote:
Originally Posted by BruceCSnow View Post
I changed the battery on my 2015 Impala LT. It was the most difficult battery change I've encountered...very tight.

Anyway, the car won't start now. Lights, radio, headlights, power windows work. Any ideas?

The car did not start after I initially changed the battery. We checked connections, still no start. Then we took the cover off the "fuse box" to the upper left of the battery and pushed in all the fuses. The car alarm came alive. I then was able to start the car.

A day later, car won't start in the Costco parking lot. Radio, electric windows, etc work fine.

I changed the battery on my 2014 Impala 2LTZ last Fall before the cold weather hit (original battery). I agree - it was very difficult and tight.

Not to aggravate you - but my car started immediately and Iíve had no problems.

Do you have an aftermarket alarm system?

I remember having to disconnect various molded / shaped wires. Are you POSITIVE everything was reconnected properly? I could take a picture of mine and post it, if it would help?
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I'm aggravated but thanks for the consideration.

Pretty sure. I mean there was the battery terminal cables and the red tip wire that went to the fuse box above the battery. I also replaced the passenger hood cross member. Can't think of anything else.

Update: I picked up my car from the Costco parking lot after it was sitting there for about 4 hours. Started on the first try. Ran well on the way home. I noticed the clock said 12:02. It was about 6:40 so evidently somehow the clock reset. But remember I said that the lights, electric windows, etc were working fine when I left it.

Engine ran fine on the way home (about 15 minutes). I turned off and on the engine in the driveway with no issues.

Ideas? Will update in the morning.
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Originally Posted by BruceCSnow View Post
I'm aggravated but thanks for the consideration.

Pretty sure. I mean there was the battery terminal cables and the red tip wire that went to the fuse box above the battery. I also replaced the passenger hood cross member. Can't think of anything else.

Update: I picked up my car from the Costco parking lot after it was sitting there for about 4 hours. Started on the first try. Ran well on the way home. I noticed the clock said 12:02. It was about 6:40 so evidently somehow the clock reset. But remember I said that the lights, electric windows, etc were working fine when I left it.

Engine ran fine on the way home (about 15 minutes). I turned off and on the engine in the driveway with no issues.

Ideas? Will update in the morning.
Aftermarket alarm?

What type of battery did you install?

Why did you replace the battery - had it failed, or part of maintenance before winter?
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A glitch with the security system in the car? Computers can be finicky especially when power gets disrupted. Maybe resolved itself with time. Would definitely check all connections to be sure they are snug and re check the fuses again to be sure nothing is loose.

My 6 year constantly asks why. What adults can learn from 5 and 6 year olds, to listen with your ears and mind open. Hard to learn when you don't listen ......
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Quote:
Originally Posted by 1999 White C5 Coupe View Post
Aftermarket alarm?

What type of battery did you install?

Why did you replace the battery - had it failed, or part of maintenance before winter?
I replaced the 3 yo Walmart Battery with a new Walmart Battery. The old battery had failed. The old battery was sluggishly cranking. Went to Wal-mart and the battery was tested they said it was fine. Told him that that's what he said with my wife's car and the battery failed a week later. Looked at the print out and the battery was marginal. Of course the battery is going to test OK when you drive it up to Walmart, the alternator's just charged it battery.

No after market alarm or stereo equipment.

****venting ****
What aggravates me is the same thing happened to my Mom's 2002 Trailblazer XLT. Everything was fine until one day it doesn't crank. Changed battery (not me) starts fine. Then intermittent starting problem. All electronics worked but turn the ignition to start and nothing. Here's the weird part: started fine in the garage every time. Drove it around and it would leave me stranded for 10 minutes until it finally decide to start. Went onto a Trailblazer/Tahoe/Suburban forum similar to this one and many people had the same problem. Took the Trailblazer to an auto electronics expert. He did something, charged me $200 but still had problem. Others took their trucks to dealership and were unsuccessful.
****Venting over****

See someone else has the same problem on this Impala forum but they didn't leave a resolution post. I bumped that thread.
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I have always purchased the highest quality replacement battery for my vehicles - and I always buy an ACDelco battery (or Motorcraft for my Ford Expedition, or Mopar for other family memberís vehicles). I live in the Midwest and winter temperatures can drop to 10 below zero F or lower. I have found (from others) that WalMart brand car batteries (and other off-brand ones from auto parts stores) are often marginal quality and do not last as long. I can afford the higher quality batteries (and other parts) and do not want to risk getting a poor-quality battery.

I have also learned that modern car batteries seem to fail suddenly. Years ago, you could tell when a battery was starting to lose its strength. I now replace my auto batteries every 3-4 years as a matter of vehicle maintenance. I would rather change one on a sunny afternoon, than on Christmas Eve with a foot of snow on the ground. Just my preference.

I think modern vehicles have so many electronic features that car batteries are called upon to provide heavy duty service all the time - and it causes them to wear-out faster than years ago.
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I drove a Chev Colorado for work for 7 years. It started having the same symptoms until it got quite annoying. I took it to a dealer and he said right away it was the module in the column that "talks" to the key. Sometimes it would "ok" the key to start and sometimes not. Replaced the module and no more problems. I think the truck was a '12 so that was a while ago. ???
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Thanks for your response. If you are talking about the Trailblazer problem, I actually had the key assembly on the steering wheel replaced. I did it myself. It worked for about 3 weeks and failed.

My Impala started the first try this morning. Here is a youtube video that shows a guy with some type of electronic diagnostics tool. I'm tempted to find someone with one (not at a dealership) and give him a shot. The problem is that I did something similar in Dallas with the Trailblazer and it didn't last.


Then again, that was on a vehicle 15 years or so older.

Looking for the title so I can sell it. I've heard these cars don't age well.
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Sold the car for 6K and bought a 2020 Camry. Good luck guys.
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Quote:
Originally Posted by 1999 White C5 Coupe View Post
I have always purchased the highest quality replacement battery for my vehicles - and I always buy an ACDelco battery (or Motorcraft for my Ford Expedition, or Mopar for other family member’s vehicles). I live in the Midwest and winter temperatures can drop to 10 below zero F or lower. I have found (from others) that WalMart brand car batteries (and other off-brand ones from auto parts stores) are often marginal quality and do not last as long. I can afford the higher quality batteries (and other parts) and do not want to risk getting a poor-quality battery.

I have also learned that modern car batteries seem to fail suddenly. Years ago, you could tell when a battery was starting to lose its strength. I now replace my auto batteries every 3-4 years as a matter of vehicle maintenance. I would rather change one on a sunny afternoon, than on Christmas Eve with a foot of snow on the ground. Just my preference.

I think modern vehicles have so many electronic features that car batteries are called upon to provide heavy duty service all the time - and it causes them to wear-out faster than years ago.
Just curious if you are talking about the basic walmart batteries or the walmart maxx line. I have had pretty good luck with the walmart maxx batteries. The one in our car has already outlasted the original AC Delco factory battery that the car came from the factory with.

And agree on the demands of the electronics in vehicles requiring more out of the batteries in cars these days.

My 6 year constantly asks why. What adults can learn from 5 and 6 year olds, to listen with your ears and mind open. Hard to learn when you don't listen ......
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Originally Posted by 12 lt View Post
Just curious if you are talking about the basic walmart batteries or the walmart maxx line. I have had pretty good luck with the walmart maxx batteries. The one in our car has already outlasted the original AC Delco factory battery that the car came from the factory with.

And agree on the demands of the electronics in vehicles requiring more out of the batteries in cars these days.


I was talking of WalMart store-branded batteries - but not a specific line there.

I do not buy store-brand auto parts (battteries, air & oil filters, etc.). I always buy the manufacturer OEM parts (GM / Ford / Mopar) for my family vehicles.

Several life-long friends are parts managers at local dealerships (GM & CDJR), so Iím able to get OEM parts (including batteries) at a reasonable price.

Ironically, when I purchased my 1999 Corvette coupe new, the OEM ACDelco battery soon failed, as it leaked acid from one of the side terminal posts, also causing damage below the mounting location. I learned that GM had recently moved production to Mexico, and there was a large batch of defective, side-post ACDelco batteries installed in many new GM vehicles. That has been the only OEM premature battery failure I can recall in 50 years of driving.

PS - I began my first job at age 15 in a ďfilling stationĒ. In addition to full-serve pumping gas, changing bulbs, tires, brakes, etc. - we installed car batteries, which were stored on the rack in dry cell condition - we had to add sulfuric acid to the six battery cells to activate the battery (which came in a plastic bag, packed in a cardboard box with a plastic fill tube line).
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I've had several new batteries over the years fail immediately or really early due to internal shorts/sulfation that always load-tested good. They may or may not start the car. It was always a crapshoot. Car would always start with a mere touch of jumper cables. Only cure was a new battery. I've probably got several of those cardboard boxes with plastic bag bladders filled with battery acid in the cellar I need to dispose of, lol.

Last edited by sheila; 1 Week Ago at 07:15 PM.
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