Hello I have a 2019 Chevy Malibu and my car is in antithe...

Hello I have a 2019 Chevy Malibu and my car is in antitheft mode I try resetting it get a new battery and still nothing is still not working Mechanic's Assistant: Have you tested the battery with a voltmeter? And can you s...

Hello I have a 2019 Chevy Malibu and my car is in antitheft mode I try resetting it get a new battery and still nothing is still not working Mechanic's Assistant: Have you tested the battery with a voltmeter? And can you see if it's leaking or not? I got a new battery I also reprogram my key and it’s asking for a second key which I don’t have Mechanic's Assistant: Are you fixing your Malibu yourself? What have you tried so far? OK I’ll put a new car battery and I put a new battery in the key fob am I reset it the whole car and I reprogram my key Mechanic's Assistant: Anything else you want the Mechanic to know before I connect you? Yes he keeps saying Anti-deterrent mode

Automotive Expert
Hello and thank you for using Just Answer. I am an ASE Certified Technician who will be further assisting you. Sorry to hear you're having issues with your Malibu. I know it can be frustrating, but let's see what we can do to get you going.

Hello do you know what it can be it’s been in anti theft mode for 4 days nowTexting is fine
Automotive Expert
Unfortunately, its very possible you will need a new key or immobilizer diagnosed with a factory level scan tool. You will need to contact a locksmith who carry's GM keys. Try another key if available.

I tried that. That didn’t work EitherWhen I push the start button everything comes on the car just doesn’t start and the check [engine](/topics-engine-chevy/) light and also the anti theft light stays on
Automotive Expert
Ok, we will need a scan tool to retrieve the faults and troubleshoot. Please tell me which scan tool you'll be using.

I don’t have one I had someone come over and check but since my dash wouldn’t light up it couldn’t read so he said it’s probably a fuse
Automotive Expert
I can attach the power distribution wiring diagram if it helps to check for power. If locksmith was not able to connect to immobilizer or PCM, then you may have a faulty battery or Fuse box.

Ok I have a new battery and what do you mean by faulty fuse box
Automotive Expert
The fuse box may have failed and not able to power up your modules.

would I need a new fuse box
Automotive Expert
Possible, but further testing is required.

Hello I have a question
Automotive Expert
Hello, please tell me how can I help you.

OK so I unplugged my battery from the positive and then I did the negative when I put the negative back on it started make a clicking noises and then my car went completely dead I also did a jump and the car cut on not started but on as I took the jumper cables off the car with completely dead and I can't lock my car with my key because the whole car died including key could that be my alternator
Automotive Expert
This sounds like a faulty battery.

It's a brand new battery
Automotive Expert
Its possible it sat on the shelf for some time. Lets get it tested where you bought it and start there.

They tested when I was there and it worked
Automotive Expert
I suggest having the dealer take a look at it since we need a scan tool to communicate with vehicle if battery good. Vehicle should be under warranty and this would be covered.

How do I cancel the subscription
Automotive Expert
You will need to contact customer service.

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