Ditto...this is engineered into the design. It is the engine warm up cycle. You can see the info below. I believe if you push the gear shift lever over into the M/S gate...it will end the warm up cycle...which could be helpful if you’ve pulled out in front of traffic and you need to scoot instead of keeping the RPMs below 2K etc...and if you accelerate past 25 MPH...you’ll end the cycle anyways:

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