Honda PIONEER 2022 Owner's Manual page 46

If all sections of the coolant temperature gauge, including segment
H and the high coolant temperature indicator are on, the engine is
overheated. Stop the engine and check the reserve tank coolant
level.
Read pages 261 – 262 and do not drive the SXS until the problem
has been corrected.
NOTICE
Continuing to ride with an overheated engine can cause serious
engine damage.
Coolant temperature gauge failure:
If the coolant temperature system has an error, the coolant
temperature gauge will appear in the display and blink, and the high
coolant temperature indicator will turn on.
If this occurs, see your dealer as soon as possible.
coolant temperature gauge
Indicators & Displays
segment H
high coolant temperature
indicator
Instruments & Controls
high coolant
temperature
indicator
37