I purchased a 2019 Blazer on 2/2/20. I have 24112 miles on it now. I had to have the key fob battery changed already @$5.99. I dont care about the cost. But after talking to them they didnt give me any advice on how to enter my locked vehicle with the manual key. I located the key slot in the door handle (drivers) side. But was unable to get the door opened. I cant believe they are so petty about a key fob battery when the average owners of new vehicles are 3 years. User's recommendation: Find out from your service department how the access your locked vehicle with manual Key. The is also a process to start your car with dead key fob once in your vehicle.