2021 Toyota Highlander technical service bulletins
180 technical service bulletins and manufacturer communications cover the 2021 Toyota Highlander.
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- 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...
- Obsolete notice
- Some 2018 – 2024 model year Toyota vehicles equipped with a Premium Audio with Dynamic Navigation System...
- 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...
- Although the HV Floor Under Wire Harness and Rear Traction Motor Cable is covered by Toyota’s New Vehicle...
- 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...
- Some 2018 – 2024 model year Toyota vehicles equipped with a Premium Audio with Dynamic Navigation System...
- The Immobilizer and Smart Key Reset is a feature that allows the registration of new keys when all master...
- 22TD02 expired on 2/7/2025 A seam near the fuel inlet may not have been properly sealed during manufacturing
- Technical instructions limited service campaign 22TD02 fuel inlet housing certain 2021 model year...
- TT: Engine Oil Leak between the Lower Oil Pan and Crank Case
- 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...
- 22TD02
- Service Campaign completion is an important part of our commitment to customer satisfaction of Toyota products
- Toyota plans to conduct Safety Recall and Service Campaign follow-up notifications to owners whose...
- Condition in which a musty odor is present
- This Service Bulletin provides updated non-electric water pump leak inspection and diagnostic tips for...
- Safety Recall and Service Campaign completion is an important part of our commitment to customer...
- Toyota plans to conduct Safety Recall and Service Campaign follow-up notifications to owners whose...
- 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
- Obsolete notice
- 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...
- Some 2018 ? 2022 model year Toyota vehicles equipped with a Premium Audio with Dynamic Navigation System...
- One or more of the following conditions: ?Milky/discolored engine oil
- Ti: technical instructions for 22TC01 data communication module (DCM) reprogramming certain 2021 model...
- Some drivers of 2020 ? 2022 model year Highlander Hybrid vehicles may be sensitive to the momentary...
- The air conditioning dye injection tool kit has been developed to aid in identifying the location of air...
- Water entry to the vehicle from the HVAC drain hose being disconnected from the air conditioning radiator...
- TT: A very small percentage of customers experience operational difficulties with some telematics features...
- Obsolete notice
- Replacement certification labels (the vinyl label installed on the driver door or door post) and VIN...
- TT: Some 2021
- MIL ON condition with one or both of the following Diagnostic Trouble Codes (DTCs) present: ?P24517F ?...
- DP: Although the high-pressure fuel pump is covered by Toyota?s New Vehicle Limited Warranty for 5 years...
- 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
- Knocking noise from the vacuum pump at idle.
- TT: On some 2021-2022MY Highlander HV, RAV4 HV, RAV4 Prime and Venza models, the connector cover for the...
- Knocking noise from the vacuum pump at idle
- TT: To assist with the early detection and early resolution of audio related concerns, it may be requested...
- MIL ON condition with Diagnostic Trouble Codes (DTCs) P0087 (Fuel Rail/System Pressure ? Too Low) and/or...
- Some 2018 ? 2022 model year Toyota vehicles equipped with a Premium Audio with Dynamic Navigation System,...
- Condition in which a musty smell is present
- TT: Some Model Year 2018-2021 vehicles equipped with A25A-FKS/FXS or M20A-FKS/FXS engines may display the...
- TT: Some Model Year 2018-2022 vehicles equipped with A25A-FKS or A25A-FXS engines may experience a MIL ON...
- TT: Vehicles listed above equipped with a Denso Ten radio (Entune Audio Plus or Premium Audio) may exhibit...
- Abnormal multi-display operation, including but not limited to: an intermittent blank screen (reverse...
- One or more of the following conditions: ?Barge in function defaulted to OFF. ?Limited phone book grammar
- TT: Some 17-22MY Highlander and 17-20MY Sienna vehicles may experience a MIL ON condition with DTC(s)...
- Paint stains after the removal of Rapgard?. The paint stains may appear to be under the clear coat but are...
- This Service Bulletin provides a procedure to properly perform the Techstream ?Control the Injection Mode?...
- Abnormal whistle noise from the front when driving over 35 mph
- TT: To improve customer support of telematics connected services features, additional resources have been...
- DL: Due to improper programming of the Data Communication Module (DCM), which provides cellular...
- Technical instructions for 22TC01 data communication module (DCM) reprogramming certain 2021 model year...
- DL: A seam near the fuel inlet may not have been properly sealed during manufacturing
- Ti: technical instructions limited service campaign 22TD02FUEL inlet housing certain 2021 model year...
- Ti: technical instructions limited service campaign 22LD01 optional body-colored rear spoiler designed...
- DD: LIMITED SERVICE CAMPAIGN 22TD02 (Remedy Notice) Dealer Letter and Technical Instructions Available on...
- SSC: Toyota Over-The- Air (OTA) Pilot Program Team Members SPECIAL SERVICE CAMPAIGN 22TC01
- TT: Vehicle control apps might not operate as expected at times due to preconditions (normal operating...
- Some 2018 model year Camry and Camry Hybrid, 2019 model year Avalon and Avalon Hybrid, 2020 ? 2021 model...
- Obsolete notice
- TT: Some 17-22MY Highlander, and 17-20MY Sienna vehicles with engine serial numbers that start with F or G...
- TT: Some 2017-2022 Highlander, and 2017-2020 Sienna vehicles may experience an engine oil leak condition...
- TT: The purpose of this Tech Tip is to provide diagnostic tips to prevent misdiagnosis of the following...
- TT: When customers have a concern about a discharged battery, no start, or general battery concern, the...
- Ssc: special service campaign 22TC01
- RL: Due to improper programming of the Data Communication Module (DCM), which provides cellular...
- TSB This Service Bulletin includes guidelines meant to help determine whether to repair or replace a wire...
- TT: Some customers may experience the inability to activate Remote Connect or Remote Connect becoming...
- POL: This consolidated Tire Warranty Guide contains the complete warranty terms for all brands of ground...
- Following condition: ?Distorted screen when using Apple CarPlay® while making a hands-free phone call
- One or more of the following conditions: ?Milky/Discolored engine oil
- One or more of the following conditions: ?WiFi intermittently inoperative
- TT: Special Service Campaign 21TC05 applies to the following condition: The fuel gauge needle and the...
- TT: When used in conjunction with the Repair Manual, these Blind Spot Monitor, Forward Recognition Camera,...
- Condition where the HVAC evaporator drain hose has become obstructed with an insect nest
- Long-term or off-site storage requires special care to keep vehicles factory fresh and ready for delivery
- TT: Some 2014-2021 model year vehicles equipped with Dynamic Torque Control AWD system may experience a...
- TSB During the manufacturing process, tires are mounted on the vehicle as matched sets to help reduce...
- 2022 model year Toyota vehicles are equipped with driver side floor mat retainers to secure the floor mat...
- Updates to the 2014-2021 toyota universal flat rate manual
- TT: Some vehicles equipped with Premium Audio systems may experience an inoperative condition that...
- One or more of the following conditions: ?Intermittent blank screen
- This Service Bulletin provides a procedure to properly perform the Techstream ?Control the Injection Mode?...
- Toyota Safety Recall and Service Campaign
- Paint stains after the removal of Rapgard?. The paint stains may appear to be under the clear coat but are...
- Whine or grind noise from the transmission
- Replacement certification labels (the vinyl label installed on the driver door or door post) and VIN...
- TT: Vehicle control apps might not operate as expected at times due to preconditions (normal operating...
- One or more of the following conditions: ?WiFi intermittently inoperative
- Following concern: ?Distorted screen when using Apple CarPlay® while making a hands-free phone call
- TT: Some vehicles may experience an issue related to the DCM, the following information is consolidating...
- This bulletin includes basic procedures for performing an at battery rescue charge on high voltage (HV)...
- TT: Beginning with the 2021MY, Highlander models no longer have front underbody holes and therefore do not...
- 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...
- An initialization procedure is required to activate the Entune? 3.0 App Suite Connect for Audio, Audio...
- TT: HVAC drain tube is found to be blocked/clogged.
- This Service Bulletin provides updated non-electric water pump leak inspection and diagnostic tips for...
- 2021 model year Toyota vehicles are equipped with driver side floor mat retainers to secure the floor mat...
- Pre-Delivery Service (PDS) is a critical step in satisfying our new car customers
- TT: The Toyota Quality group is looking to better understand our customers expectation regarding vehicle...
- Obsolete notice
- TMNA Accessory Sales and Marketing has developed a Toyota paint protection film (PPF) decal (treated with...
- All 2021 model year Toyota vehicles are equipped with driver side floor mat retainers to secure the floor...
- TT: Repairing a 1234YF HVAC system on a gas powered (non-hybrid) Toyota vehicle may require additional...
- TT: Unibody vehicles commonly have lashing holes on the under body used for securing the vehicle during...
- TT: Due to the challenges caused by the COVID-19 virus threat, some dealers are experiencing reduced...
- TT: The blind spot monitor (BSM) sensor angle inspection is used to confirm that the BSM sensor is within...
- Replacement vin plates.
- Product general information.
VIN decoder
See the problems and recalls for an exact car
Buying a used 2021 Toyota Highlander?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history