2023 Toyota Highlander technical service bulletins
131 technical service bulletins and manufacturer communications cover the 2023 Toyota Highlander.
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- MIL ON condition with Diagnostic Trouble Code (DTC) P042000 (Catalyst System Efficiency Below Threshold...
- Water leak from the roof rack attachment clips
- Condition in which the air conditioner does not cool due to a leak and/or corrosion in the rear underbody...
- Condition in which a musty odor is present
- Condition in which the Power Back Door (PBD) will not open or close and/or stops moving while opening or...
- A new head unit software update is available for 2022 – 2025 model year Tundra, and Tundra Hybrid; 2023 –...
- Although the HV Floor Under Wire Harness and Rear Traction Motor Cable is covered by Toyota’s New Vehicle...
- A new head unit software update is available for 2023 model year Corolla Cross, Corolla Cross Hybrid,...
- The air conditioning dye injection tool kit has been developed to aid in identifying the location of air...
- To assist with the early detection and early resolution of audio related concerns you may be asked to...
- The Immobilizer and Smart Key Reset is a feature that allows the registration of new keys when all master...
- TT: Engine Oil Leak between the Lower Oil Pan and Crank Case
- MIL ON condition with Diagnostic Trouble Codes (DTCs) P162B87 (Lost Communication with Battery Monitor...
- Acid rain results from rainwater or other airborne moisture that become acidic due to industrial chemical...
- To prevent brake rotor rust from forming during transportation and storage, wheel film will be used...
- The condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix...
- Toyota vehicles are currently protected with RapgardTM protective film designed to protect the horizontal...
- Vehicles may occasionally be subjected to contamination by airborne iron particles shed from railroad...
- The subject vehicles were delivered with only one (1) Smart Key on select models since October 2022 due to...
- The supply of Smart Keys available for Toyota vehicles has been temporarily limited to one (1) on select...
- Second key delivery program 23TJ01
- The table below describes the phases currently planned for the Second Key Delivery Program and the...
- Some 2022 model year Avalon and Avalon Hybrid, 2022 – 2024 model year Camry, Camry Hybrid, Corolla,...
- Technical instructions for special service campaign 24TC05 malfunction indicator lamp (MIL) is on with DTC...
- Condition in which the remote climate system is inoperative after the vehicle has been off for three hours...
- Second key delivery program
- Special service campaign 24TC05
- The Engine Control Computer software has a programing error which can
- The table describes the phases currently planned for the Second Key Delivery Program and the estimated...
- Frequently Asked Questions Original Publication Date: September 19, 2024
- Some customers have expressed concern that the wireless functions of their Key Fob stop working
- Condition in which a musty odor is present
- Obsolete notice
- This Service Bulletin provides updated non-electric water pump leak inspection and diagnostic tips for...
- Second Key Delivery Program Frequently Asked Questions
- The Data Communication Module (DCM), which supports Toyota Connected Services in your vehicle, may not...
- Technical instructions for special service campaign 24TC03 data communicaton module (DCM) update certain...
- Second Key Delivery Program
- Toyota vehicles are currently protected with RapgardTM protective film designed to protect the horizontal...
- Water leak from the roof rack attachment clips
- Customers have expressed concerns about the performance of Qi Wireless Chargers
- Some customers have complained that the wireless functions of their Key Fob stop working
- A head unit software update is now available for 2023 model year Corolla Cross, Corolla Cross Hybrid,...
- DP: The subject vehicles were delivered with only one (1) Smart Key on select models since October 2022...
- This is to advise of various price adjustments that will affect Toyota Genuine Motor Oil and Long Life...
- The Immobilizer and Smart Key Reset is a feature that allows the registration of new keys when all master...
- One or more of the following conditions: ?Milky/discolored engine oil
- RL: The supply of Smart Keys available for Toyota vehicles has been temporarily limited to one (1) on...
- Ti: technical instructions for 23TJ01
- MIL ON condition with Diagnostic Trouble Code (DTC) P05CE00 (Cold Start ?B? Camshaft Position Timing...
- One or both of the following conditions: ?Hesitation when accelerating from a stop
- TT: Some MY23-24 Highlander and Grand Highlander/HV vehicles may experience a condition where the engine...
- The air conditioning dye injection tool kit has been developed to aid in identifying the location of air...
- TT: A very small percentage of customers experience operational difficulties with some telematics features...
- Replacement certification labels (the vinyl label installed on the driver door or door post) and VIN...
- TT: Some 2021
- Some 2023 ? 2024 model year Toyota vehicles use hub bolts in place of studs/nuts to fasten the wheels to...
- MIL ON condition with one or both of the following Diagnostic Trouble Codes (DTCs) present: ?P24517F ?...
- TT: When setting up the Toyota Audio Multimedia (21MM) user profile, if the QR code is not working please...
- TT: Some 2022-2024 MY vehicles equipped with the A25A engine may exhibit a leak from the engine water...
- TT: Some Model Year 2018-2023 vehicles equipped with A25A-FKS/FXS or M20A-FKS/FXS engines may display the...
- TT: Some 2021 to 2023 MY vehicles equipped Rear Motor Generator, MGR (Q610) may experience an oil leak concern
- A battery in a stored vehicle is subject to conditions that can reduce its performance and service life
- During the manufacturing process, tires are mounted on the vehicle as matched sets to help reduce...
- Obsolete notice
- Obsolete notice
- Hybrid vehicles are equipped with two types of batteries: ?Hybrid vehicle (HV) battery
- 2023 model year Toyota vehicles are equipped with driver side floor mat retainers to secure the floor mat...
- Long-term or off-site storage requires special care to keep vehicles factory fresh and ready for delivery
- TT: Some MY2022-2023 vehicles equipped with A25A-FKS or A25A-FXS engines may experience a MIL on condition...
- Pre-Delivery Service (PDS) is a critical step in satisfying our new car customers
- TT: To improve customer support of telematics connected services features, additional resources have been...
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