2001 Lexus GS 300 User Guide 1 - Page 310
2001 Lexus GS 300 Manual
Page 310 highlights
ELECTRICAL COMPONENTS 64G021a 64G022a " 1 Bubble 2 Acceptable range " 1 Mark 2 Acceptable range Vertical movement gauge: The bubble of the gauge should not deviate from the center of the gauge by more than 2 marks to either side of the gauge. If the bubble is out of the acceptable range of the beam angle gauge, adjust it using bolt A. Horizontal movement gauge: The mark should not deviate by more than one mark to either side of the gauge. If the edge of the lens does not match "0" mark, adjust the lens using bolt B. If the error is over the value specified above, take the vehicle to your Lexus dealer to adjust the headlight aim. After adjusting the headlight in the vertical direction, check that the light has been shifted from the adjusted position in the horizontal direction. 292