How do you reset the idle speed in a 2005 Toyota Camry?

If problem started after you changed battery,try undoing positive cable for a few minutes,may be reset the ecm,there is no idle adjustment on your car,it is adjusted by your ecm. If problem continue,s, could be low voltage from bad battery may have shorted the throttle position sensor.

Drive it around a little bit. Some in city and some highway. Usually relearns in about 6 -10 miles. Also turn ac on for some of the driving.

Try cleaning iac valve make sure race hose Under valve one of the hose is fuel put a small Full filter in between The fuel hose not the water hose Try alsogg flushing out rad,valve might be clogging.

Sometimes adjust accelerator Cable some adjust takeaway look at yours

Yes you are right. After turning on the car, immediately turned the AC and headlight as well. It checks and store the data to ECU which is the minimum required idle Engine speed and not to turn off. Also some of them recommended to clean the throttle body, which may further help as a periodic maintenance. Thanks a lot guys

Just turn your car and ac off. Make sure your emergency brake is pulled as far as it can go. Turn your car on and put it in drive. Since the emergency brake is on the car won’t move but the engine will reset it’s idle

its called adaptive memory just like the clock if you loose power the clock resets.... same with the computer it has to relearn how to idle and drive just drive it after the vehicle has been driven enough it should not die anymore it adapts to your driving