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Start Up Sequence? (Noise Investigation)

If you have experienced this condition, the most likely cause is the drivers side front transmission mount. Watch it carefully for movement.

Please see Tech Tip T-TT-0673-21 Revision 1 APPLICABLE VEHICLES: 2017-2021 Toyota Avalon Hybrid 2017-2021 Toyota Avalon CONDITION: Vehicle has an abnormal noise condition when going over speed bumps or irregular roads. Noise is coming from front shock absorber RECOMMENDATIONS: If the noise...

Please see Tech Tip T-TT-0494-18 Revision 1 APPLICABLE VEHICLES: 2018 Toyota Tacoma CONDITION: Some 2018 model year vehicles may exhibit a squeak or rattle noise from the Front Right Body Mount Bushing (No. 1) when driving over uneven roads or bumps. Make sure to confirm that noise is coming...

Corolla Hatchback High Frequency sound intermittently when ignition on from RF interior. Sound lasts about 2 seconds. The fix was to replace the DCM module.

Please see T-SB-0054-21 is now Obsolete. Please see T-SB-0051-22 Applicability: 2019 Toyota 4Runner Introduction: Some 2019 model year 4Runner vehicles may exhibit a squeal/squeak noise from the front brakes with light to moderate braking. Follow the Repair Procedure in this bulletin to...

Please see T-SB-0055-21 Applicability: 2021 Sienna HV VDS(s): DRKEC, ERKEC, GRKEC, XRKEC, ZRK Drive Type(s): FWD (Please see this Post to determine VDS and WMI's) Introduction: Some 2021 model year Sienna Hybrid vehicles equipped with FWD and 20-in. clad wheels may exhibit a clicking/creaking...

Please be aware that these transmission noise issues are becoming more popular for some reason. The repair is to replace the transmission.

Please see Tech Tip T-TT-0661-21 APPLICABLE VEHICLES: 2018-2021 Toyota Tundra CONDITIION: Customer complaint of HVAC compressor “Bang” type noise upon initial compressor engagement when air conditioning has not been operated for an extended period (~24 hrs. or longer). The noise is caused by...

*** Toyota has issued a fix for this noise in T-SB-0048-22. Please see this Post here. *** If you have a 2021 Toyota Highlander with a whistle noise starting around 45mph, then you may want to replace the hood seal. Allegedly there us a new design but will still have the old part number. You...

Please see Tech Tip T-TT-0658-21 APPLICABLE VEHICLES: UB80 AWD Equipped Models ONLY 2021 Toyota RAV4 2021 Toyota Camry 2021 Toyota Avalon CONDITION: This Tech Tip applies to 2021 model year Camry, Avalon, and RAV4 gas models with AWD system ONLY. Some customers may complain of a leak or...

Please see Tech Tip T-TT-0652-21 Revision 1 APPLICABLE VEHICLES: 2019 Toyota RAV4 CONDITION: This Tech Tip applies to 2019 model year RAV4 Adventure/Limited grade equipped with torque vectoring AWD system ONLY. Some customers may experience an abnormal noise from rear differential after...

Please see Tech Tip T-TT-0646-21 APPLICABLE VEHICLES: 2021 Toyota Sienna Hybrid CONDITION: Some 2021 model year Sienna HV vehicles may exhibit a scraping noise from the front when turning. RECOMMENDATIONS: Confirm the scraping noise is coming from the front of the vehicle and not the rear...

Please see Recall KLC 2018 Lexus LS 500 and LS 500h Vehicles Possible Partial Tread Separation of Run-Flat Tires On February 27, 2019, Lexus filed a Defect Information Report (DIR) with the National Highway Traffic Safety Administration (NHTSA) informing the agency of our intent to conduct a...

Please see Tech Tip T-TT-0494-18 APPLICABLE VEHICLES: 2018 Tacoma CONDITION: Some 2018 model year vehicles may exhibit a squeak or rattle noise from the Front Right Body Mount Bushing (No. 1) when driving over uneven roads or bumps. Make sure to confirm that noise is coming from Front Right...

See Tech Tip T-TT-0538-19 (Sequoia) and Tech Tip T-TT-0533-19 (Tundra) CONDITION: Customers may raise a concern of a clunk type noise coming from the engine compartment shortly after start-up, due to repeated depressing of the brake pedal or shortly after the vehicle begins to move...

Please see Tech Tip T-TT-0582-19 Revision 1 APPLICABLE VEHICLES: 2019-2020 Toyota RAV4 2019-2020 Toyota RAV4 Hybrid CONDITION: Customer states that there is a squeak or groan noise from the steering column area when turning the steering wheel. RECOMMENDATIONS: Do not apply any lubricant or...

There are a few things you are going to want to check. 1) Press on the black brake line holders on the firewall inside engine bay and make sure they are clicked in good 2) Try checking if the heater core lines are close to each other or touching and rattling on each other and 3) check the...

If you run across a 2019 Toyota Rav4 with a water leak around the head liner or in the passenger side floorboard/kick panel, then you will want to check the grommets that hold the roof rack rails on. Here are some pics of the leak location and the connector corrosion. Also the TPMS light may be on.