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Hello, I’m Pete from the Car Genius team at RepairPal. I’m sorry you’re dealing with this concern on your Chevrolet Tahoe. Based on the information provided if your Tahoe wouldn't start previously and you replaced the battery and then the same issue occurred the next day, if you are experiencing the same concern with a loss of electrical power causing the no start concern this issue can be caused by a possible parasitic battery drain. This is an electrical drain that can occur when an electronic in your vehicle is stuck on, failing internally, or has a short or failure of some kind to where it continues to pull electrical power from the battery when the ignition is turned off. This may also be caused by battery cable or connector condition or from being loose or corroded. There is also a possibility that this may be a charging concern due to a component like the alternator itself failing. I recommend having the cables and connections checked as well as having the charging system tested and a parasitic battery drain test performed to help identify the cause. In many cases this will require some special test equipment to help identify the issue which most shops will have on hand and should be able to assist with if needed. If you’d like to find a trusted, certified repair shop in your area, you can check here: https://repairpal.com/certified. If you need more advice, or have any further questions about your vehicle, we’re here to help. Just give us a call at 877-913-1554 where we will be happy to assist!