Technical Service Bulletins (TSBs) for the 2023 Highlander are official communications between Toyota & their dealerships that describe processes for troubleshooting or fixing certain common problems.
All vehicle manufacturers are required by U.S. law to make their TSBs available to the public.
TSB: Some 2018 ? 2024 model year Toyota vehicles equipped with an A25A-FKS, A25A-FXS, M20A-FKS, or M20A-FXS engine may exhibit one or more of the following conditions: ?Milky/discolored engine oil. Read More »
TT: Some MY2022-2023 vehicles equipped with A25A-FKS or A25A-FXS engines may experience a MIL on condition with one or more of the following DTCs: P26CA12, P26CA14, P26CB71, P26CA31, P26CE37 Read More »
This is to advise of various price adjustments that will affect Toyota Genuine Motor Oil and Long Life Coolant, effective March 1, 2024. These products are ordered through the Toyota Complete Maintenance Care (TCMC) website. Read More »
TT: Some 2021 - 2023 Highlander HV, RAV4 HV and Sienna HV vehicles equipped with Rear Motor Generator, MGR (Q610), may duplicate an abnormal noise (Drone, Growl, Humming, and/or other) from the MGR at various vehicle speeds and normal ... Read More »
TT: Some 2022-2024 MY vehicles equipped with the A25A engine may exhibit a leak from the engine water pump, and/or MIL On condition accompanied by DTC(s): ?P26CA14 Engine Coolant Pump Circuit Short to Ground or Open ?P26CA31 Engine ... Read More »
TT: Some 2021 - 2023 Highlander HV, RAV4 HV and Sienna HV vehicles equipped with Rear Motor Generator, MGR (Q610), may duplicate an abnormal noise (Drone, Growl, Humming, and/or other) from the MGR at various vehicle speeds and normal ... Read More »
TT: Some 2021 to 2023 MY vehicles equipped Rear Motor Generator, MGR (Q610) may experience an oil leak concern. This issue is currently under investigation Read More »
ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL
TT: Some Model Year 2018-2023 vehicles equipped with A25A-FKS/FXS or M20A-FKS/FXS engines may display the following message ?Engine Maintenance Required Visit Your Dealer? on the combination meter Read More »
This is to advise of various price adjustments that will affect Toyota Genuine Motor Oil and Long Life Coolant, effective March 1, 2024. These products are ordered through the Toyota Complete Maintenance Care (TCMC) website. Read More »
ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)
TSB: Some 2023 model year Highlander vehicles equipped with a T24A-FTS engine may exhibit a MIL ON condition with Diagnostic Trouble Code (DTC) P05CE00 (Cold Start ?B? Camshaft Position Timing Performance Bank 1). Read More »
TSB: Some 2023 model year Highlander vehicles may exhibit one or both of the following conditions: ?Hesitation when accelerating from a stop. ?Non-linear acceleration from a stop or rolling stop with steady throttle. Read More »
TSB: Some 2018 ? 2024 model year Toyota vehicles equipped with an A25A-FKS, A25A-FXS, M20A-FKS, or M20A-FXS engine may exhibit one or more of the following conditions: ?Milky/discolored engine oil. Read More »
ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL
TSB: Some 2020 ? 2023 model year Highlander Hybrid and 2021 ? 2023 model year RAV4 Hybrid, RAV4 Prime, Sienna Hybrid, and Venza Hybrid vehicles may exhibit a MIL ON condition with one or both of the following Diagnostic Trouble Codes ... Read More »
ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV)
TSB: Some 2020 ? 2023 model year Highlander Hybrid and 2021 ? 2023 model year RAV4 Hybrid, RAV4 Prime, Sienna Hybrid, and Venza Hybrid vehicles may exhibit a MIL ON condition with one or both of the following Diagnostic Trouble Codes ... Read More »
TSB: The Immobilizer and Smart Key Reset is a feature that allows the registration of new keys when all master keys are lost. Once the system is reset, all previously registered keys will be erased and can never be reused. Read More »
TSB: Some 2018 ? 2024 model year Toyota vehicles equipped with an A25A-FKS, A25A-FXS, M20A-FKS, or M20A-FXS engine may exhibit one or more of the following conditions: ?Milky/discolored engine oil. Read More »
DP: The subject vehicles were delivered with only one (1) Smart Key on select models since October 2022 due to a global semiconductor shortage impacting certain microchips. Read More »
RL: The supply of Smart Keys available for Toyota vehicles has been temporarily limited to one (1) on select models since October 2022 due to global semiconductor shortages impacting certain microchips. Read More »
TSB: Some 2023 model year Highlander vehicles equipped with a T24A-FTS engine may exhibit a MIL ON condition with Diagnostic Trouble Code (DTC) P05CE00 (Cold Start ?B? Camshaft Position Timing Performance Bank 1). Read More »
TSB: Some 2023 model year Highlander vehicles may exhibit one or both of the following conditions: ?Hesitation when accelerating from a stop. ?Non-linear acceleration from a stop or rolling stop with steady throttle. Read More »
TSB: Some 2023 model year Highlander vehicles equipped with a T24A-FTS engine may exhibit a MIL ON condition with Diagnostic Trouble Code (DTC) P05CE00 (Cold Start ?B? Camshaft Position Timing Performance Bank 1). Read More »
TT: Some 2022-2024 MY vehicles equipped with the A25A engine may exhibit a leak from the engine water pump, and/or MIL On condition accompanied by DTC(s): ?P26CA14 Engine Coolant Pump Circuit Short to Ground or Open ?P26CA31 Engine ... Read More »
TSB: Pre-Delivery Service (PDS) is a critical step in satisfying our new car customers. Customer feedback indicates the following areas deserve special attention when performing PDS: ?Careful inspection for paint chips/scratches and ... Read More »
DP: The subject vehicles were delivered with only one (1) Smart Key on select models since October 2022 due to a global semiconductor shortage impacting certain microchips. Read More »
The table describes the phases currently planned for the Second Key Delivery Program and the estimated timing of announcement. This table will be updated during each phase launch and as more details become available. Read More »
DP: The subject vehicles were delivered with only one (1) Smart Key on select models since October 2022 due to a global semiconductor shortage impacting certain microchips. Read More »
RL: The supply of Smart Keys available for Toyota vehicles has been temporarily limited to one (1) on select models since October 2022 due to global semiconductor shortages impacting certain microchips. Read More »
DP: The subject vehicles were delivered with only one (1) Smart Key on select models since October 2022 due to a global semiconductor shortage impacting certain microchips. Read More »
RL: The supply of Smart Keys available for Toyota vehicles has been temporarily limited to one (1) on select models since October 2022 due to global semiconductor shortages impacting certain microchips. Read More »
TSB: The air conditioning dye injection tool kit has been developed to aid in identifying the location of air conditioning refrigerant leaks. Read More »
TSB: Replacement certification labels (the vinyl label installed on the driver door or door post) and VIN plates (the metal plate riveted to dashboard) (see Figure 1) for most 1979 ? 2023 model year vehicles may be available provided the ... Read More »
TSB: 2023 model year Toyota vehicles are equipped with driver side floor mat retainers to secure the floor mat in the correct position. In addition, some models may also utilize retainers for passenger side and rear seat floor mats. Read More »
TSB: Pre-Delivery Service (PDS) is a critical step in satisfying our new car customers. Customer feedback indicates the following areas deserve special attention when performing PDS: ?Careful inspection for paint chips/scratches and ... Read More »
TSB: Replacement certification labels (the vinyl label installed on the driver door or door post) and VIN plates (the metal plate riveted to dashboard) (see Figure 1) for most 1979 ? 2023 model year vehicles may be available provided the ... Read More »
TSB: During the manufacturing process, tires are mounted on the vehicle as matched sets to help reduce conditions such as pulling or drifting. Read More »
TSB: During the manufacturing process, tires are mounted on the vehicle as matched sets to help reduce conditions such as pulling or drifting. Read More »
TSB: Some 2018 ? 2024 model year Toyota vehicles equipped with an A25A-FKS, A25A-FXS, M20A-FKS, or M20A-FXS engine may exhibit one or more of the following conditions: ?Milky/discolored engine oil. Read More »
TT: Some 2021 - 2023 Highlander HV, RAV4 HV and Sienna HV vehicles equipped with Rear Motor Generator, MGR (Q610), may duplicate an abnormal noise (Drone, Growl, Humming, and/or other) from the MGR at various vehicle speeds and normal ... Read More »
TT: Some 2021 - 2023 Highlander HV, RAV4 HV and Sienna HV vehicles equipped with Rear Motor Generator, MGR (Q610), may duplicate an abnormal noise (Drone, Growl, Humming, and/or other) from the MGR at various vehicle speeds and normal ... Read More »
TT: A very small percentage of customers experience operational difficulties with some telematics features which they cannot resolve on their own. Read More »
TT: To improve customer support of telematics connected services features, additional resources have been provided in the Service Lane - Knowledge Center. Read More »
TSB: Replacement certification labels (the vinyl label installed on the driver door or door post) and VIN plates (the metal plate riveted to dashboard) (see Figure 1) for most 1979 ? 2023 model year vehicles may be available provided the ... Read More »
TSB: A battery in a stored vehicle is subject to conditions that can reduce its performance and service life. These conditions include storage period, temperature, parasitic drain, and battery load. Read More »
TSB: Pre-Delivery Service (PDS) is a critical step in satisfying our new car customers. Customer feedback indicates the following areas deserve special attention when performing PDS: ?Careful inspection for paint chips/scratches and ... Read More »
TSB: A battery in a stored vehicle is subject to conditions that can reduce its performance and service life. These conditions include storage period, temperature, parasitic drain, and battery load. Read More »
TSB: 2023 model year Toyota vehicles are equipped with driver side floor mat retainers to secure the floor mat in the correct position. In addition, some models may also utilize retainers for passenger side and rear seat floor mats. Read More »
TT: Some MY23-24 Highlander and Grand Highlander/HV vehicles may experience a condition where the engine does not restart automatically following a start/stop event. Read More »
TT: When setting up the Toyota Audio Multimedia (21MM) user profile, if the QR code is not working please use the following recommendations. Read More »
TSB: A head unit software update is now available for 2023 model year Corolla Cross, Corolla Cross Hybrid, Highlander, Highlander Hybrid, and Mirai vehicles equipped with Toyota Multimedia (earlier than version 2050). Read More »
TSB: A head unit software update is now available for 2023 model year Corolla Cross, Corolla Cross Hybrid, Highlander, Highlander Hybrid, and Mirai vehicles equipped with Toyota Multimedia (earlier than version 2050). Read More »
TSB: 2023 model year Toyota vehicles are equipped with driver side floor mat retainers to secure the floor mat in the correct position. In addition, some models may also utilize retainers for passenger side and rear seat floor mats. Read More »
DP: The subject vehicles were delivered with only one (1) Smart Key on select models since October 2022 due to a global semiconductor shortage impacting certain microchips. Read More »
The table describes the phases currently planned for the Second Key Delivery Program and the estimated timing of announcement. This table will be updated during each phase launch and as more details become available. Read More »
TT: A very small percentage of customers experience operational difficulties with some telematics features which they cannot resolve on their own. Read More »
