T-TT-0599-20 Rev

Service Bulletin Details

Public Details for: T-TT-0599-20 Rev

Tt: vehicle control apps might not operate as expected at times due to preconditions (normal operating parameters) not being established, vehicle settings and/or network/cellular coverage concerns.


- 2021 - 2020 -

Tech Tip T-TT-0599-20
Subject
January 20, 2021
Market
Toyota Remote Connect - App Operating Tips
Service Category
Section
Audio/Visual/Telematics
Cellular Communication
USA
Applicability
All Applicable Models
APPLICABLE VEHICLES
2020-2021
2021
2021
2020-2021
2020-2021
2020-2021
2021
2020-2021
2021
2021
2021
C-HR
Prius
Sienna HV
Highlander
Highlander HV
Tundra
Corolla HV
RAV4
Prius Prime
Corolla
Camry HV
2020-2021
2021
2021
2021
2020-2021
2020-2021
2021
2020-2021
2020-2021
2020-2021
Camry
Avalon
Avalon HV
Venza HV
Tacoma
4Runner
RAV4 Prime
Corolla Hatchback
RAV4 HV
Sequoia
CONDITION
Vehicle control apps might not operate as expected at times due to preconditions (normal operating
parameters) not being established, vehicle settings and/or network/cellular coverage concerns.
RECOMMENDATIONS
Please review and identify the required details for operation before considering a potential need for a
repair and/or diagnostic support. Please also assist customers with the required preconditions when
necessary to ensure a positive ownership experience.
Contents:
1. Remote Engine Starter Preconditions and Tips
2. Remote Door Lock Preconditions and Tips
3. Vehicle ECU Initializations
4. Key FOB Remote Start Operation
5. Resources (as available)
Expires on
Ver. 2.12 01/01/2020 T
01/20/2022
Rev1
© 2020, Toyota Motor Sales, USA
Page 1 of 4
Tech Tip T-TT-0599-20
January 20, 2021
Subject
Market
Toyota Remote Connect - App Operating Tips
USA
Applicability
RECOMMENDATIONS
1. Remote Engine Starter Preconditions and Tips:
Utilize the following table as a guide to successful operation of the control apps (cell phone)
based remote engine starter system.
NOTE: Network/cellular coverage may influence response time from each command. Sending
multiple commands in a short period of time is not recommended. The remote start by key
FOB is only possible (authorized) after the first successful start using the phone app.
2. Remote Door Lock/Unlock Preconditions and Tips:
Utilize the following table as a guide to successful operation of the control apps (cell phone)
based door lock and unlock system.
NOTE: Network/cellular coverage may influence response time from each command. Sending
multiple commands in a short period of time is not recommended. Make sure door locks work
normally by panel switch and FOB, and that the remote door lock operation is not customized to
OFF.
Expires on
Ver. 2.12 01/01/2020 T
01/20/2022
Rev1
© 2020, Toyota Motor Sales, USA
Page 2 of 4
Tech Tip T-TT-0599-20
January 20, 2021
Subject
Market
Toyota Remote Connect - App Operating Tips
USA
Applicability
RECOMMENDATIONS
3. Vehicle ECU Initializations:
Ensure the vehicle settings and initializations for door lock and remote engine starter are
correct as per the repair manual.
A. Make sure that “Communication Remote Engine Starter” in Techstream customized
settings that is designed/intended for an add-on or aftermarket RES kit is set to “Not
Available”.
Customize>Others>Communication Remote Engine Starter > Not Available
EXAMPLE:
B. With the related DTCs cleared, perform the following registrations/initializations:
i. Smart Key Live>ECU Communication ID Registration>Remote Engine Starter
ii. Smart Key Live>ECU Communication ID Registration> I.D. Code Box/Steering Lock
iii. Telematics>Remote Door Lock Setting
NOTES:
 If settings are improper, related DTCs may include: B126A, B2779, U0198, and U1117.
 Performing these specific “initializations” can be safely done even if not needed.
 Make sure the Telematics initialization utility includes the words “door lock” as a general
“initialization” titled utility may be unrelated and not supporting the door lock/unlock app.
 Make sure that any customized setting for remote door locks has the feature enabled.
 Do NOT use the Telematics “activation” utility for existing DCMs with established
accounts. [This is only for new off-the-shelf DCMs when first installed into vehicles.]
4. Key FOB Remote Start Operation:
Once the remote start from the key FOB is functioning after telematics enrollment and remote
authorization, it should continue to operate even if the customer allows the remote services trial
to lapse and not renew. If the key FOB remote start function no longer works after the trial has
lapsed, check the Telematics Datalist items below.
 Remote Operation: Enabled (functioning correctly), Disabled (Contact the BEC)
 Remote A/C by Smart Key: Enabled (functioning correctly), Disabled (Contact the BEC)
 Remote Engine Starter Registration: Registered (functioning correctly), Not Registered
(See section 3. B. of this document)
 Remote Door Lock Function: Registered (functioning correctly), Not Registered (See
section 3. B. of this document)
 Communication Pausing State: Cancel Pausing (functioning correctly), Pausing (Contact
BEC)
Expires on
Ver. 2.12 01/01/2020 T
01/20/2022
Rev1
© 2020, Toyota Motor Sales, USA
Page 3 of 4
Tech Tip T-TT-0599-20
January 20, 2021
Subject
Market
Toyota Remote Connect - App Operating Tips
USA
Applicability
RECOMMENDATIONS
5. Resources:
 Service Lane: Knowledge Center/Entune Quick Apps Check
 Service Lane: Knowledge Center/Entune Remote Connect Guide
 TIS/Tech Assistance:
o Connected Services “Direction” PreCall Worksheet
o Connected Services “Analysis” PreCall Worksheet
Repair Manual/Telematics/DCM Replacement/Initializations for wireless door lock and remote engine
starter in the Smart Key registration section.
LINK REFERENCES
This Tech Tip does not contain any link references
Expires on
Ver. 2.12 01/01/2020 T
01/20/2022
Rev1
© 2020, Toyota Motor Sales, USA
Page 4 of 4


© dot.report 2024

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.