Lexus RC F Owner's Manual page 301

Symptom
Guide lines are not displayed
The estimated course lines
are not displayed
RCF_RC_Navi_U
1. LEXUS PARKING ASSIST MONITOR
Likely cause
The trunk is open.
 The steering wheel has
been moved while the bat-
tery was being reinstalled.
 Battery power is low.
 The steering sensor has
been reinstalled.
 There is a malfunction in the
signals being output by the
steering sensor.
Solution
Close the trunk.
If this does not resolve the
symptom, have the vehicle in-
spected by your Lexus dealer.
Stop the vehicle, and turn the
steering wheel as far as it will
go to the left and right.
If this does not resolve the
symptom, have the vehicle in-
spected by your Lexus dealer.
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