Cessna 182S Pilot Operating Handbook page 256

--
CESSNA
MODEL 182S
SECTION 9 - SUPPLEMENTS
SUPPLEMENT 1 - FAA APPROVED
Subsequent presses of the MODE button sequences through
SWRV, BRIM, SIDE, and then back to SWRV.
Pressing the NAV Transfer Button momentarily exits Pilot
configuration mode. The NAV returns to its pre-Pilot Config state
with the new brightness and sidetone levels stored in nonvolatile
memory.
SECTION
5
PERFORMANCE
There is no change to the airplane performance when this
avionic equipment is installed. However, the installation of an
externally mounted antenna, or several related antennas, will result
in a minor reduction in cruise performance.