Toyota bulletin TSB002123
What it saysTSB: Some 2020 ? 2022 model year Highlander and RAV4 vehicles, and 2022 model year Tundra vehicles equipped with a start/stop switch may exhibit water entry to the vehicle from the HVAC drain hose being disconnected… NHTSA’s full summary ↓
Toyota filed this with NHTSA as a service bulletin dated Aug 21, 2023, received Oct 16, 2023, about the visibility/wiper. It names 7 model years (2020–2022). A service bulletin is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationTSB: Some 2020 ? 2022 model year Highlander and RAV4 vehicles, and 2022 model year Tundra vehicles equipped with a start/stop switch may exhibit water entry to the vehicle from the HVAC drain hose being disconnected from the air conditioning radiator assembly and/or a grease/oil odor emitting from the vents. This condition may be caused by paraffin wax leaking from the evaporator. Follow the repair procedure in this bulletin to address this condition.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| TSB002123 | Service bulletin | Aug 21, 2023 | 10244116 | not found |
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Doing the repair yourself, or pricing it before the shop does? Search the part by fitment on eBay Motors — the listing and the price are the seller’s.
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Model years it names
Source: as the manufacturer filed themA vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
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What owners reported
Source: NHTSA complaint databaseOwners of the 7 model years this bulletin names have filed 2,806 complaints with NHTSA since 2015. 32 of them name Visibility/Wiper — the same broad component group this bulletin is filed under. NHTSA groups complaints coarsely, so that means the same area of the vehicle, not necessarily the same fault.
The contact owns a 2020 Toyota Rav4 Hybrid. The contact stated that while driving at an undisclosed speed, he became aware that the driver's side sideview mirror was vibrating excessively, distorting the image seen. No warning lights were illuminated. The vehicle was not taken to the dealer or an independent mechanic.
2020 Toyota RAV4 · Visibility/Wiper · filed with NHTSA May 21, 2024 · ODI 11590020
The contact owns a 2021 Toyota Rav4 Hybrid. The contact stated while driving approximately 50 MPH, the sunroof exploded, and fragments of glass fell inside the cabin of the vehicle. The vehicle was taken to a local dealer and was diagnosed with needing the sunroof replaced. The vehicle was not repaired.
2021 Toyota RAV4 · Visibility/Wiper · filed with NHTSA Jan 20, 2022 · ODI 11448186
I'm reporting this problem as follows. Drivers side mirror (glass) at speed exceeding 20 miles an hour vibrates causing issues with me seeing traffic coming up beside me on the drivers side. This problem with vibration only gets worse at highway speeds. This is a known problem to Toyota.
2022 Toyota Highlander · Visibility/Wiper · filed with NHTSA Aug 17, 2022 · ODI 11479705
A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.
More bulletins about the visibility/wiper
Source: same model, same component group1 other manufacturer communication filed against these Toyota models under the same component group (visibility/wiper), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| TSB005823 | Service bulletin | Aug 21, 2023 | TSB: The air conditioning dye injection tool kit has been developed to aid in identifying the location of air conditioning refrigerant leaks… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Toyota, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Toyota TSB002123 a recall?
No. A service bulletin is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the TSB002123 repair free?
Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way. Every Toyota warranty extension on file lists the ones Toyota has filed.
Which vehicles does TSB002123 cover?
The manufacturer filed it against 7 model years: 2022 Toyota Highlander, 2021 Toyota Highlander, 2020 Toyota Highlander, 2022 Toyota RAV4, 2021 Toyota RAV4, 2020 Toyota RAV4 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.