Idle rpm increase while in Drive

I'm an old, retired guy with a recently purchased 2021 SR5 4wd, 6cyl access cab Tacoma with 21K miles, I live in Minnesota.

I have a very tight spot to park in, at idle creeping into my spot I get an unpredictable Un commanded idle increase of about 5 to 7 rpm making parking a challenge.

Truck operates normal, no fault lights and operates normal while driving.
The rise in RPM is proceeded by a solenoid click that I'm guessing is the Idle Air Control Valve. The command to that solenoid I'm guessing comes from the Engine Control Unit which maybe senses a low idle. I don't think I can raise the idle with an adjustment.
Anyone have ideas of what the problem could be or how to trouble shoot.
The dealership told me without a fault light their must not be a problem. ha ha

 

Turn your air off or windshield defogger vents off.

 

Also turning your steering wheel will do the same thing.

 

Welcome to TW and to owning a very smart truck...
It is normal, and no mechanical adjustments for the idle, it also does not have an idle control valve as it is what is called a drive by wire, it has an electronic throttle actuated controlled throttle body...

You would never feel a 5-7 rpm idle chance, did you mean a 500 - 700rpm surge?? If I understand your concern correctly, what is happening is normal for these trucks, what you are feeling is either the A/C cycling causing the ECM to command a higher idle (as mentioned the A/C runs when in defrost mode) and or the strain on the engine when turning the steering wheel also causing the ECM to command an idle increase...

You could also have a dirty throttle body and the ECM is trying to compensate for it... You can look at live data to see the idle %...

 

Lots of opinions here so I’m throwing mine in I think what you are feeling is the well known Tacoma lurch and I think a TSB was issued for this problem although it might not have been for the 2021 model but it’s worth contacting your local dealer about it. IMO

 

Thank you everyone for the replies.