NHTSA ID Number: 10173987
Manufacturer Communication Number: L-TT-0284-20
TSB/Document Date: 2020-04-20
Summary
TT: For proper calibration of the millimeter wave radar sensor, the vehicle must be on a level surface. If a level surface is not available, this tech tip should be used in conjunction with the repair manual to set the angle of the front millimeter wave radar sensor and reflector height before performing beam axis adjustment.
Tech Tip L-TT-0284-20
March 26, 2020
Subject
Market
Millimeter Wave Radar Sensor Floor Slope
Compensation
USA
Service Category
Section
Engine/Hybrid
System
Applicability
Lexus Models with Manually Adjusted Front Millimeter Wave Radar Sensor
APPLICABLE VEHICLES
2006-2015
2010-2015
2013-2015
2008-2014
2008-2016
2011-2017
IS250
RX450H
ES300H
IS F
LS600H
CT200H
2008-2011, 20132015
2015-2017
2015-2017
2016-2017
2010-2015
LX570
2010-2019
2016
2016-2017
GX460
IS200T
RC300
RC350
NX200T
RC200T
IS350C
2006-2016
2006
2010-2015
2008-2011
2007-2015
2007-2011, 20132015
2007-2017
IS350
GS300
IS250C
GS460
ES350
GS450H
2015-2017
2006-2007
2010-2012
2007-2011, 20132015
2011-2015
2015-2017
RC F
GS430
HS250H
GS350
LS460
RX350
NX300H
CONDITION
For proper calibration of the millimeter wave radar sensor, the vehicle must be on a level surface. If a
level surface is not available, this tech tip should be used in conjunction with the repair manual to set
the angle of the front millimeter wave radar sensor and reflector height before performing beam axis
adjustment.
RECOMMENDATIONS
PREPARE VEHICLE FOR CALIBRATION
REFER TO THE APPLICABLE VEHICLE’S REPAIR MANUAL FOR CALIBRATION PREPARATION
Expires on
Ver. 3.0 08/27/2019 L
03/26/2021
© 2019, Lexus, a Division of Toyota Motor Sales, USA
Page 1 of 5
Tech Tip L-TT-0284-20
March 26, 2020
Subject
Market
Millimeter Wave Radar Sensor Floor Slope
Compensation
USA
Applicability
Lexus Models with Manually Adjusted Front Millimeter Wave Radar Sensor
RECOMMENDATIONS
DETERMINE FLOOR SLOPE AND SET VERTICAL ANGLE OF MILLIMETER WAVE RADAR SENSOR
FLOOR SLOPE AND VERTICAL ANGLE CALIBRATION VIDEO
1. INSTALL THE LASER LEVEL ONTO THE TRIPOD
A. Install the tripod head attachment onto the base of the
laser level.
B. Engage the tripod head attachment onto the tripod and
lock it in position.
SST: 01816-00103 (Laser Level) DEMO VIDEO
01816-00104 (Tri-pod)
2. MEASURE THE FLOOR SLOPE ON BOTH SIDES OF VEHICLE
A. Place the tripod and laser approximately 6 ft. away from the
side of the vehicle.
B. Level the tripod base and head using the built-in bubble levels.
C. Turn on the laser and ensure that the laser switch is placed
in the UNLOCKED position, so it can automatically level.
D. Measure the distance from the floor to the laser line at the
vertical center of the front wheel and record the value.
NOTE: Measure using either inches or millimeters.
E. Measure the distance from the floor to the laser line at the
vertical center of the rear wheel and record the value.
F. Repeat steps A-E for the opposite side.
Expires on
Ver. 3.0 08/27/2019 L
03/26/2021
© 2019, Lexus, a Division of Toyota Motor Sales, USA
Page 2 of 5
Tech Tip L-TT-0284-20
March 26, 2020
Subject
Market
Millimeter Wave Radar Sensor Floor Slope
Compensation
USA
Applicability
Lexus Models with Manually Adjusted Front Millimeter Wave Radar Sensor
RECOMMENDATIONS
3. CALCULATE VERTICAL ANGLE FOR MILLIMETER WAVE RADAR SENSOR
A. Open the slope calculator link, select the appropriate
vehicle from the dropdown, and enter the measured values
at each wheel in the correct locations.
NOTE: Ensure the correct measurement value (inches or
mm) is selected prior to calculating.
B. Press the finalize button and then press calculate.
C. The sheet will calculate the required vertical angle and
reflector height adjustment based on the floor slope. Record
these readings.
SLOPE CALCULATOR LINK
4. SET VERTICAL ANGLE OF MILLIMETER WAVE RADAR SENSOR
A. Clean the top of the radar sensor surface and SST
"Attachment A” mounting surfaces of any dust and debris.
B. Place “Attachment A” (short or long depending on available
clearance) on top of the radar sensor calibration surface as
shown.
C. Place the digital angle gauge on “Attachment A” with the
screen facing the passenger side of the vehicle and retrieve
sensor angle.
NOTE: Once the digital angle gauge has been powered on,
the unit must be set to “Absolute Mode”, ABS will be
displayed in the upper right corner of the display.
SST: 09989-00010-01 or 09989-00010-L (Attachment A)
01815-00102 (Digital Angle Gauge) DEMO VIDEO
Expires on
Ver. 3.0 08/27/2019 L
03/26/2021
© 2019, Lexus, a Division of Toyota Motor Sales, USA
Page 3 of 5
Tech Tip L-TT-0284-20
March 26, 2020
Subject
Market
Millimeter Wave Radar Sensor Floor Slope
Compensation
USA
Applicability
Lexus Models with Manually Adjusted Front Millimeter Wave Radar Sensor
RECOMMENDATIONS
D. Adjust the radar vertical angle to the value calculated on the
slope calculation sheet.
SET TARGET PLACEMENT AND PERFORM SENSOR CALIBRATION
1. LOCATE AND MARK THE CENTER LINE OF THE VEHICLE PER THE APPLICABLE
VEHICLE’S REPAIR MANUAL
2. LOCATE THE REFLECTOR SST CALIBRATION POSITION PER THE APPLICABLE VEHICLE’S
REPAIR MANUAL
3. SET REFLECTOR HEIGHT
REFLECTOR HEIGHT ADJUSTMENT PROCEDURE VIDEO
A. Place the tripod and laser level in front of the vehicle.
B. Level the tripod base and head using the built-in bubble levels.
C. Turn on the laser level to the UNLOCKED position with both
the vertical and horizontal laser lines being projected.
D. Adjust the height of the tripod head and laser until the laser
line crosses the center of the front emblem as shown.
E. Turn the self-leveling laser 180 degrees and toward the
reflector stand.
Expires on
Ver. 3.0 08/27/2019 L
03/26/2021
© 2019, Lexus, a Division of Toyota Motor Sales, USA
Page 4 of 5
Tech Tip L-TT-0284-20
March 26, 2020
Subject
Market
Millimeter Wave Radar Sensor Floor Slope
Compensation
USA
Applicability
Lexus Models with Manually Adjusted Front Millimeter Wave Radar Sensor
RECOMMENDATIONS
F. Adjust the height of the reflector until the center aligns with the
laser lines as shown.
G. Adjust the height of the reflector up or down in accordance with
the slope calculation sheet value.
PERFORM BEAM AXIS ADJUSTMENT OF THE MILLIMETER WAVE RADAR SENSOR.
REFER TO THE APPLICABLE VEHICLE’S REPAIR MANUAL FOR BEAM AXIS
ADJUSTMENT INSTRUCTIONS
LINK REFERENCES
SLOPE CALCULATOR LINK
FLOOR SLOPE AND VERTICAL ANGLE CALIBRATION VIDEO
REFLECTOR HEIGHT ADJUSTMENT PROCEDURE VIDEO
Expires on
Ver. 3.0 08/27/2019 L
03/26/2021
© 2019, Lexus, a Division of Toyota Motor Sales, USA
Page 5 of 5
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TSB/Document ID: L-TT-0284-20
Replacement Service Bulletin Number:
MFR Communication Date: 2020-03-26
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: EQUIPMENT
MFR Component System:
MFR Component Subsystem:
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