2020 Toyota Sienna technical service bulletins
153 technical service bulletins and manufacturer communications cover the 2020 Toyota Sienna.
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- 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
- 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...
- 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...
- Condition in which a musty odor is present
- This Service Bulletin provides updated non-electric water pump leak inspection and diagnostic tips for...
- Toyota vehicles are currently protected with RapgardTM protective film designed to protect the horizontal...
- This is to advise of various price adjustments that will affect Toyota Genuine Motor Oil and Long Life...
- Some 2018 ? 2022 model year Toyota vehicles equipped with a Premium Audio with Dynamic Navigation System...
- 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...
- The Immobilizer and Smart Key Reset is a feature that allows the registration of new keys when all master...
- DP: Although the high-pressure fuel pump is covered by Toyota?s New Vehicle Limited Warranty for 5 years...
- Knocking noise from the vacuum pump at idle.
- Hard start and/or MIL ON condition with one or more of the following Diagnostic Trouble Codes (DTCs): ?DTC...
- DL: On December 20, 2022, a settlement of claims for certain low pressure fuel pumps was approved by 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...
- Obsolete notice
- 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: Vehicles listed above equipped with a Denso Ten radio (Entune Audio Plus or Premium Audio) may exhibit...
- 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?...
- TT: To improve customer support of telematics connected services features, additional resources have been...
- TT: Some 17-22MY Highlander, and 17-20MY Sienna vehicles with engine serial numbers that start with F or G...
- TT: Some Toyota vehicles installed with Toyota Complete Maintenance Care (TCMC) brake pads may exhibit a...
- 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...
- TSB This Service Bulletin includes guidelines meant to help determine whether to repair or replace a wire...
- POL: This consolidated Tire Warranty Guide contains the complete warranty terms for all brands of ground...
- Some 2018 ? 2020 model year Toyota vehicles equipped with a Premium Audio with Dynamic Navigation System...
- TT: Some customers may encounter Bluetooth® connectivity concerns such as: ?Difficulty to pair the phone
- Some 2018 ? 2020 model year Sienna (XLE, Limited); 2019 model year Avalon, Avalon Hybrid, Corolla...
- TT: When used in conjunction with the Repair Manual, these Blind Spot Monitor, Forward Recognition Camera,...
- Tt: note
- Condition where the HVAC evaporator drain hose has become obstructed with an insect nest
- One or more of the following conditions: ?Toyota apps fail to download
- One or more of the following conditions: ?Abnormal navigation operation
- Obsolete notice
- Obsolete notice
- TT: Some 2014-2021 model year vehicles equipped with Dynamic Torque Control AWD system may experience a...
- Updates to the 2014-2021 toyota universal flat rate manual
- One or more of the following conditions: ?Incorrect GPS date and time
- Condition where the front door glass run on either the right-hand or left-hand side comes loose from the...
- This Service Bulletin provides a procedure to properly perform the Techstream ?Control the Injection Mode?...
- Toyota Safety Recall and Service Campaign
- TT: Some Toyota vehicles installed with Toyota Complete Maintenance Care (TCMC) brake pads may exhibit a...
- Paint stains after the removal of Rapgard?. The paint stains may appear to be under the clear coat but are...
- Replacement certification labels (the vinyl label installed on the driver door or door post) and VIN...
- Obsolete notice
- Vibration/pulsation from the front brakes that can be felt in the brake pedal while lightly applying the...
- 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...
- 2020 model year Toyota vehicles are equipped with driver side floor mat retainers to secure the floor mat...
- No sound in all modes, an intermittent loud popping noise, and/or static noise coming from the speakers
- TT: The Toyota Quality group is looking to better understand our customers expectation regarding vehicle...
- Obsolete notice
- Supersession notice
- TT: The new DCA-8000 Diagnostic Charger may
- TT: Unibody vehicles commonly have lashing holes on the under body used for securing the vehicle during...
- TT: The microphone circuit passes through the DCM before reaching the radio/navigation system
- Supersession notice
- Obsolete notice
- 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...
- Supersession notice
- Safety Recall and Service Campaign
- Long-term or off-site storage requires special care to keep vehicles factory fresh and ready for delivery
- An initialization procedure is required to activate the Entune? 3.0 App Suite Connect for Audio, Audio...
- TT: Some vehicles equipped with Dynamic Navigation may experience a pop-up message notifying them that...
- One or more of the following conditions: ?Toyota Apps fail to download ?Bluetooth® is unable to...
- An initialization procedure is required to activate the Entune? 3.0 App Suite Connect for Audio, Audio...
- Vehicles may display evidence of a fluid leak or fluid seep from powertrain components
- Revision notice
- TT: In certain cases of leaking air conditioning systems, the root
- Revision notice
- Revision notice
- TT: All grades of 2018-2020 model year Mirai, Sienna, CH-R, and 2020 model year Land Cruiser, Prius, and...
- TT: Safety Connect is a vehicle option which requires a subscription fee for the system to be active after...
- TT: Some customers may encounter Bluetooth® connectivity concerns such as: ? Difficulty to pair the phone
- TT: Some customers may experience a call failure when attempting to call a conference call number that has...
- Some 2009 ? 2019 model year Toyota vehicles with super chrome wheel finishes may become discolored and/or...
- Revision notice
- Revision notice
- TMNA Accessory Sales and Marketing has developed a Toyota paint protection film (PPF) decal (treated with...
- TT: The new 12V Battery Warranty Testers (DSS-5000 & DCA-8000) require certain information to generate a...
- Pre-Delivery Service (PDS) is a critical step in satisfying our new car customers
- TT: Some Highlander and Sienna clad/chrome wheels might experience bubbling and/or peeling off on the...
- TT: The current engine active test ?Control the Injection Mode? is not operating as desired when...
- A battery in a stored vehicle is subject to conditions that can reduce its performance and life
- An initialization procedure is required to activate the Entune? 3.0 App Suite Connect for Entune? 3.0...
- During the manufacturing process, tires are mounted on the vehicle as matched sets to help reduce...
- Replacement vin plates.
- Product general information.
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