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2021-2023 Toyota Immobilizer and Smart Key Reset TSB

A Technical Service Bulletin (TSB) from Toyota outlines the procedure for performing an Immobilizer and Smart Key Reset on various 2021-2023 Toyota models. This procedure is crucial when all master keys are lost, allowing new keys to be registered.

ByAhmet Topcu — Founder & Editor-in-ChiefAutomated summary2023 Toyota Camry
2023 TOYOTA Camry — Toyota immobilizer smart key reset
Editorial illustration generated for this article.
Toyota immobilizer smart key resetNHTSA 10238157Toyota TSBImmobilizer and Smart Key Resetlost master keyskey registrationelectrical systemequipmentToyota key eraseToyota key programming
Toyota 4Runner
2021
Toyota C-HR
2021–2022
Toyota Camry
2021–2022
Toyota Prius
2021
Toyota Sequoia
2021
Toyota Tacoma
2021–2023
▸ 1 tane daha göster
Toyota Tundra
2021

What is the Toyota Immobilizer and Smart Key Reset?

The Toyota Immobilizer and Smart Key Reset is a specialized feature designed to address situations where all master keys for a vehicle have been lost. This procedure allows for the registration of new keys, restoring the vehicle's functionality and security.

When is the Reset Procedure Necessary?

This reset procedure is specifically required when a vehicle owner has lost all master keys. Without a master key, new keys cannot typically be programmed or registered to the vehicle's immobilizer and smart key system. The Toyota immobilizer smart key reset provides a solution for this critical scenario.

Important Considerations for the Reset

It is crucial to understand that once the Immobilizer and Smart Key system is reset, all previously registered keys will be erased from the vehicle's memory. This means any remaining spare keys that were previously functional will no longer work and will need to be re-registered along with any new keys.

Overview of the Reset Procedure

The TSB outlines the necessary steps for technicians to perform the Toyota immobilizer smart key reset. This involves accessing the vehicle's immobilizer or smart key system and initiating a reset sequence. The primary goal is to clear all existing key data, allowing for a fresh registration of new or replacement keys.

What Owners Should Know

If you find yourself in a situation where all master keys for your 2021-2023 Toyota are lost, you will need to visit a Toyota dealership. They have the tools and procedures, as detailed in this TSB, to perform the Immobilizer and Smart Key Reset. Be aware that this process will invalidate any previously working keys, so ensure you have all new or replacement keys ready for registration during the service appointment.


NHTSA ID: 10238157

Frequently Asked Questions

What is the purpose of the Toyota Immobilizer and Smart Key Reset?
The Toyota Immobilizer and Smart Key Reset procedure is designed to allow new keys to be registered to a vehicle when all original master keys have been lost, restoring the vehicle's security and functionality.
What happens to my old keys after an Immobilizer and Smart Key Reset?
Once the Immobilizer and Smart Key system is reset, all previously registered keys will be erased from the vehicle's memory. These old keys will no longer work and any keys you wish to use must be re-registered.
Which Toyota models are covered by this Immobilizer and Smart Key Reset TSB?
This TSB, NHTSA ID 10238157, applies to various 2021-2023 Toyota models, including the Camry, Tacoma, C-HR, Tundra, Sequoia, 4Runner, and Prius.
Can I perform the Toyota immobilizer smart key reset myself?
No, the Toyota immobilizer smart key reset procedure requires specialized tools and knowledge typically available only at an authorized Toyota dealership. It is not a procedure intended for vehicle owners to perform.

What Toyota Camry owners report

Counted from the records in our database across 44 model years.

19,642
Owner complaints
74
Recalls
1,998
Service bulletins
2,952
Crashes reported
433
Fires reported
2,097
Injuries reported

The 2023 model year

66 complaints, the 37th most of 44 model years on file. Owners reported 10 crashes, 2 fires and 7 injuries for this year, which also has 2 recalls on file.

Equipment and Electrical System, the system this article covers, accounts for 1,719 of 19,642 complaints (9%), including 9 for 2023.

Complaints by model year

Model years with the most complaints for the Toyota Camry
2002953
2003782
2004638
2005721
20073,490
20081,095
20091,412
2012645
2018782
202366

Most-reported systems

  1. Vehicle Speed Control — 3,431
  2. Service Brakes — 2,805
  3. Structure — 1,910
  4. Power Train — 1,796
  5. Air Bags — 1,712

Latest recalls for the 2023 model year

  • 24V128000 — Seats (Feb 2024)
  • 23V432000 — Wheels (Jun 2023) — Do not drive
All 2023 recalls →

Recent owner reports about equipment and electrical system

My 2023 Toyota Camry has developed an intermittent defect where the ignition key becomes stuck and cannot be removed even though the dashboard shows the vehicle is in Park.

2023 Toyota Camry owner, Jul 2026

Electrical light the car didn't want to start even the battery is good No risk to other maybe if I stay stuck in the middle of no where I have not taking the car to no one No one has inspected Yes they were light on the dashboard

2023 Toyota Camry owner, May 2026
Read owner complaints →

Complaints are owner reports filed with NHTSA. They are unverified, and counts depend on how many vehicles were sold, so they are not a failure rate.

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