Does not blown heat air after replace battery for 2008 Lexus es350

If not blowing any air, your blower motor has failed. First check your fuses and make sure they are good. If fuses look good, locate your blower motor. Usually it's under the glove box area. If you can locate it, turn the power on, and rap the bottom of the motor with a heavy ratchet. If it suddenly comes back to life, it's time to replace it. If blower motor does not come back on, you may also have a bad blower motor resistor. If those are bad, you would have noticed that one or more of your fan speeds would have not been working. Like the blower would only work on high or low only. Most of the time if your blower suddenly quits working, it's the motor itself that is bad.