Honda 1999 CR-V Reference Owner's Manual page 223

VERTICAL ANGLE GAUGE
6. Check the vertical angle gauge.
The bubble should be centered
underneath the longest scribe
mark on the gauge.
HORIZONTAL ADJUSTMENT
7. If either indicator is not aligned
with its "0" mark as described, an
adjustment can be made using a
Phillips-head screwdriver to
realign it with the "0" mark. Please
refer to the illustrations.
VERTICAL ADJUSTMENT
8. If you cannot get an indicator to
align, have your Honda dealer
inspect the vehicle for body
damage or suspension problems.
Maintenance
Lights