2020 Toyota Corolla technical service bulletins
201 technical service bulletins and manufacturer communications cover the 2020 Toyota Corolla, including 10 warranty extensions.
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Although the flow shut-off valve is covered by Toyota’s New Vehicle Limited Warranty for 36 months or...
- Customer support program 24TE04
- Engine
- Frequently Asked Questions CUSTOMER SUPPORT PROGRAM 24TE04 Multiple Model & Model Year Toyota Vehicles...
- This Customer Support Program provides coverage as it applies to Flow Shut-off Valve Coolant Leak on...
- Obsolete notice
- 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
- Owner Renotification Letter Due to certain programing in the engine ECU, under certain conditions, the...
- Obsolete notice
- Vibration or rattle noise from the right-hand engine mounting insulator sub-assembly
- The specific condition covered by this program is for a small engine coolant leak that can occur from the...
- MIL ON condition with one or more of the following Diagnostic Trouble Codes (DTCs) upon cold soak start up...
- Condition in which an “Engine Maintenance Required” message is displayed in the Multi-Information Display...
- 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...
- 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...
- Some technicians may report an engine oil leak from the Engine Oil Level Sensor area
- Condition in which a musty odor is present
- Vibration or rattle noise from the right-hand engine mounting insulator sub-assembly
- 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...
- 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
- Vibration or rattle noise from the right-hand engine mounting insulator sub-assembly
- 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...
- Rl: safety recall & service campaign renotification owner renotification 23R002
- Dl: safety recall & service campaign renotification owner renotification 23R002
- TT: Confirm the vehicle meets the following conditions: 1) Rattle noise is coming from the brake pedal...
- TT: Some Model Year 2018-2023 vehicles equipped with A25A-FKS/FXS or M20A-FKS/FXS engines may display the...
- 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...
- DL: On December 20, 2022, a settlement of claims for certain low pressure fuel pumps was approved by the...
- 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
- Clicking noise when making turns greater than 90 degrees and accelerating with the steering wheel on full...
- TT: Some Model Year 2018-2021 vehicles equipped with A25A-FKS/FXS or M20A-FKS/FXS engines may display the...
- DD: 22TC07_Dealer Daily Message 7.8.2022
- DL: Due to certain programing in the engine ECU, under certain conditions, the vehicle may stall at low...
- RL: Due to certain programing in the engine ECU, under certain conditions, the vehicle may stall at low...
- Ti: technical instructions for special service campaign 22TC07 engine ECU software update certain 2020...
- 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...
- Some 2018 model year Camry and Camry Hybrid, 2019 model year Avalon and Avalon Hybrid, 2020 ? 2021 model...
- Obsolete notice
- TT: Some Toyota vehicles installed with Toyota Complete Maintenance Care (TCMC) brake pads may exhibit a...
- 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...
- One or more of the following conditions: ?Milky/Discolored engine oil
- One or more of the following conditions: ?Diagnostic Trouble Code (DTC) B15A804 is present in current or...
- 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,...
- Parking Brake Malfunction warning message on the Multi-information Display (MID) with Diagnostic Trouble...
- Tt: note
- Condition where the HVAC evaporator drain hose has become obstructed with an insect nest
- Updates to the 2014-2021 toyota universal flat rate manual
- One or more of the following conditions: ?Incorrect GPS date and time
- 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...
- Sloshing or splashing noise when turning at low speeds or when opening and closing doors
- Obsolete notice
- This bulletin includes basic procedures for performing an at battery rescue charge on high voltage (HV)...
- 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...
- Excessive buildup of dust, lint, or debris in the HV battery intake filter or cooling fan
- 2020 model year Toyota vehicles are equipped with driver side floor mat retainers to secure the floor mat...
- Tt: a 12V
- TT: Any HVAC repair requiring reassembly of the quick connect fitting between the suction hose...
- TT: The Toyota Quality group is looking to better understand our customers expectation regarding vehicle...
- MIL ON condition with Diagnostic Trouble Codes (DTCs) P0A80/P1AC000 and/or P0A7F/P1A8000 stored due to...
- Obsolete notice
- Supersession notice
- Obsolete notice
- TT: The new DCA-8000 Diagnostic Charger may
- 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: The microphone circuit passes through the DCM before reaching the radio/navigation system
- Supersession notice
- TT: Some grades of Japan built (VIN beginning with ?J?) non-HV Corollas no longer have a hood seal (PN ?...
- 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
- Naturally occurring odors emitted from the HVAC system and/or related environmental factors
- 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 new vehicles may experience the SOS/Telematics functions inoperative during Pre-Delivery...
- TT: Some 2020 model year vehicles may display abnormal Safety Connect operation during PDS or after...
- TT: Some vehicles equipped with Dynamic Navigation may experience a pop-up message notifying them that...
- Vehicle control apps might not operate as expected at times due to preconditions (normal operating...
- TT: Some customers may experience the inability to activate Remote Connect or Remote Connect becoming...
- 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
- Obsolete notice
- Revision notice
- TT: Some 2020 model year vehicles may display abnormal Safety Connect operation during PDS due to DCM...
- TT: Some customers may experience the Remote Connect becoming inoperative when attempting to send commands...
- Revision notice
- TT: On 2019-2020 model year Corolla Hatchback vehicles follow the recommendations when performing the HVAC...
- TT: Some 2020 model year Camry, Camry HV, RAV4, RAV4 HV, and Corolla Hatchback vehicles equipped with a...
- One or more of the following conditions: ? Incorrect GPS date and time ? Abnormal Bluetooth® operation ?...
- TT: Safety Connect is a vehicle option which requires a subscription fee for the system to be active after...
- TT: Some 2020 model year Camry, Camry HV and Corolla Hatchback vehicles equipped with a DCM may exhibit a...
- TT: Some customers may encounter Bluetooth® connectivity concerns such as: ? Difficulty to pair the phone
- Replacement vin plates.
- Product general information.
VIN decoder
See the problems and recalls for an exact car
Buying a used 2020 Toyota Corolla?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history