T-SB-0026-20 Rev

T-SB-0026-20
Rev1
March 18, 2020
PCS and DRCC Permanent Disabling
Service
Category
Vehicle Interior
Section
Pre-Collision Safety
Market USA
Applicability
YEAR(S)
MODEL(S)
2020 - 2021
4Runner
2018 - 2021
Sequoia, Tacoma, Tundra
ADDITIONAL INFORMATION
REVISION NOTICE
December 15, 2020 Rev1:
 The Repair Procedure section has been updated.
Any previous printed versions of this bulletin should be discarded.
Introduction
All 2018 – 2021 model year Sequoia, Tacoma, and Tundra and 2020 – 2021 model year 4Runner vehicles
are equipped with Pre-collision System (PCS) and Dynamic Radar Cruise Control (DRCC) as part of the
Toyota Safety Sense (TSS) package. The PCS and DRCC systems are designed to help mitigate a
potential collision and maintain a pre-determined traveling distance.
It is recommended to disable the PCS and DRCC systems on vehicles that have been modified
(ride height, oversized wheels/tires, brush bars, etc.) in a way that potentially disrupts the functionality of
these systems. Vehicle owner’s written consent is required before performing the calibration to permanently
disable the PCS and DRCC systems. Follow the Repair Procedure in this bulletin to disable the PCS and
DRCC systems.
WARNING
Once this calibration has been performed, the PCS and DRCC systems will be
PERMANENTLY DISABLED. Replacing the millimeter wave radar is REQUIRED to reinitiate the
PCS and DRCC systems.
Warranty Information
OP CODE
DESCRIPTION
TIME
OFP
T1
T2
N/A
Not Applicable to Warranty
–
–
–
–
© 2020 Toyota Motor Sales, USA
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PCS and DRCC Permanent Disabling
Parts Information
PART NUMBER
PART NAME
QTY
214182323
Modified Vehicle Label
1
Required Tools & Equipment
REQUIRED EQUIPMENT
SUPPLIER
Techstream ADVi*
QTY
TSADVUNIT
Techstream 2.0
Techstream Lite
PART NUMBER
TS2UNIT
ADE
Techstream Lite (Green Cable)
1
TSLITEPDLR01
TSLP2DLR01
*Essential SST.
NOTE
 Only ONE of the Techstream units listed above is required.
 Software version 15.30.027 or later is required.
 Additional Techstream units may be ordered by calling Approved Dealer
Equipment (ADE) at 1-800-368-6787.
 Use Techstream or an approved J2534 interface to perform flash reprogramming updates.
Visit techinfo.toyota.com for more information regarding J2534 reprogramming.
SPECIAL SERVICE TOOLS (SST)
PART NUMBER
QTY
Battery Diagnostic Tool*
DCA-8000P_T
1
*Essential SST.
NOTE
Additional SSTs may be ordered by calling 1-800-933-8335.
© 2020 Toyota Motor Sales, USA
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PCS and DRCC Permanent Disabling
Calibration Information
MODEL
CALIBRATION ID
PREVIOUS
NEW
8821F0C01000
8821F0C01100
8821F0C01200
8821F0C01300
8821F0C01400
8821F0C01500
8821F0C03000
8821F0C03100
Tundra
8821F0C03200
8821F0C08000
8821F0C03300
8821F0C03400
8821F0C03500
8821F0C05000
8821F0C05100
8821F0C06000
8821F0C06100
8821F0401000
8821F0401100
8821F0401200
8821F0402000
8821F0402100
8821F0402200
Tacoma
8821F0403000
8821F0404000
8821F0405000
8821F0405100
8821F0405200
8821F0406000
8821F0406100
8821F0406200
© 2020 Toyota Motor Sales, USA
8821F0407000
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PCS and DRCC Permanent Disabling
Calibration Information (continued)
CALIBRATION ID
MODEL
PREVIOUS
NEW
8821F0C02000
8821F0C02100
8821F0C02200
8821F0C02300
Sequoia
8821F0C02400
8821F0C09000
8821F0C02500
8821F0C04000
8821F0C04100
8821F3501000
8821F0W02000
4Runner
8821F0W04000
8821F0W05000
8821F0W04100
Repair Procedure
1. Does the vehicle have modifications that may potentially disrupt PCS and DRCC
system functionality?
Examples of modifications include, but are not limited to, changes in ride height, oversized
wheels/tires, and brush bars.

YES — Continue to step 2.

NO — This bulletin does NOT apply.
2. Has the customer agreed to disable the millimeter wave radar and reviewed the Owner’s
Manual Insert?


YES — Continue to step 3.
NO — This bulletin does NOT apply.
WARNING
Once this calibration has been performed, the PCS and DRCC systems will be
PERMANENTLY DISABLED. Replacing the millimeter wave radar is REQUIRED to reinitiate
the PCS and DRCC systems.
© 2020 Toyota Motor Sales, USA
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PCS and DRCC Permanent Disabling
Repair Procedure (continued)
3. Using Techstream, perform Health Check and clear ANY stored Diagnostic Trouble
Codes (DTCs).
4. Flash reprogram the Radar ECU.
NOTE
 The battery diagnostic tool MUST be used in Power Supply Mode to maintain battery voltage
at 13.5V while flash reprogramming the vehicle.
 For details on how to use the battery diagnostic tool, refer to the DCA-8000 Instruction Manual
located at TIS – Diagnostics – Tools & Equipment – Battery Diagnostics.
Follow the procedures outlined in Service Bulletin T-SB-0134-16, Techstream ECU Flash
Reprogramming Procedure, and flash the Radar ECU with the NEW calibration file update.
5. Reset the EFI-ECU using the following links to the reset tools.

Sequoia, 4Runner, Tundra: Reset Tool

Tacoma: Reset Tool
6. Confirm the PCS OFF light is Illuminated.
Figure 1.
7. Using Techstream, perform Health Check.
NOTE
Some DTCs may remain stored.
© 2020 Toyota Motor Sales, USA
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PCS and DRCC Permanent Disabling
Repair Procedure (continued)
8. Attach the modified vehicle label to the steering column.
Figure 2.
1
1
z
Apply the Modified Vehicle Label to the Steering Column
9. Confirm the constant speed cruise control operation.
10. Insert the modified vehicles equipped with TSS Owner’s Manual Insert in the
Owner’s Manual.
NOTE
The Owner’s Manual Insert can be found on pg. 7 of this bulletin.
11. The PCS and DRCC systems are now PERMANENTLY disabled.
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PCS and DRCC Permanent Disabling
Owner’s Manual Insert
**Owner’s Manual Insert**
Model Applicability Tundra, Tacoma, Sequoia, 4Runner
Remove at this line and put insert in section 4-5 of the owner’s manual.
Modified Vehicles equipped with TSS – Owner’s Manual Insert
This vehicle was found to be equipped with non-Toyota-approved modifications noted
below.
Because this vehicle had non-Toyota-approved modifications, Pre-Collision System (PCS)
and Dynamic Radar Cruise Control (DRCC) may not operate as designed. For example:


PCS may activate even if a collision is not likely.
PCS may not recognize a vehicle or a pedestrian when a vehicle or pedestrian is
ahead.
For more information on the effects of non-Toyota-approved modifications on PCS go to
www.toyota.com/content/ebrochure/CFA_TSS_Precautions.pdf.
NOTE: While PCS is
deactivated, the PCS warning
light will be displayed in the
instrument cluster and a
message will be displayed on
the multi information display. If
this light and message are not
present, then PCS has been reactivated.
Toyota recommends the PCS and DRCC system NOT be used when non-Toyota-approved
modifications are installed on the vehicle. Constant speed Cruise control is still available.
For more information about the PCS system and how to use constant speed cruise control mode refer to section 4-5 of this
owner’s manual.
The non-Toyota-approved vehicle modification(s) present on the vehicle is(are):
Lift kit changing ride height
Oversized Wheels/Tires
Grille from different model/trim package installed
Other_________________________________________
Date:________________________________________________
© 2020 Toyota Motor Sales, USA