Landcruiser Icon 2019 >RPM downhill

[Irarra911]

Hi I have recently bought Landcruiser Icon Auto 2019 with 10.5k mileage. I drove down a steep hill when l  pressed the brakes the RPM raved to 4000-5000.

Is that normal?

[Devon Aygo]

Page 281 of owners manual:

■Driving on a downhill On declines, there may be case where the vehicle shifts down automatically to obtain engine braking. As a result of the downshifting, the engine speed may increase

OM60Q72E.pdf

[Irarra911]

Thanks l just wanted to make sure there is nothing wrong with the icon engine.