2021 Toyota Camry Transmission Whine Noise (NHTSA 10188917)
Some 2021 Toyota Camry, Highlander, and Avalon vehicles with UA80E or UA80F transmissions may experience a whine or grind noise. NHTSA Manufacturer Communication 10188917 addresses this issue, linking it to the front carrier assembly pinion shafts.

Also applies to
- Toyota Avalon
- 2021
- Toyota Highlander
- 2021
Toyota has issued a Technical Service Bulletin (TSB) addressing a specific transmission noise concern in certain 2021 model year vehicles. This 2021 TOYOTA Camry manufacturer_communication, identified as NHTSA Manufacturer Communication 10188917, provides guidance for diagnosing and repairing a whine or grind noise originating from the transmission.
Symptoms
Owners of affected vehicles may notice a distinct whine or grind noise coming from the transmission. This noise typically indicates an internal issue within the transmission assembly.
Affected Transmissions and Root Cause
This condition specifically impacts vehicles equipped with either the UA80E or UA80F transmissions. The TSB indicates that the underlying cause of the whine or grind noise is an issue with the front carrier assembly pinion shafts. This 2021 TOYOTA Camry manufacturer_communication highlights a manufacturing or design anomaly in these specific components.
Repair Procedure Summary
To address this transmission noise, the Technical Service Bulletin outlines a detailed repair procedure for technicians. The primary focus of the repair involves rectifying the issue with the front carrier assembly pinion shafts. Owners experiencing this problem should be aware that the repair will involve internal transmission work.
What Owners Should Do
If you own a 2021 Toyota Camry, Highlander, or Avalon and are experiencing a whine or grind noise from your transmission, it is recommended to contact your authorized Toyota dealership. Inform them about the noise and mention NHTSA Manufacturer Communication 10188917. The dealership will be able to diagnose the issue and perform the necessary repairs according to the guidelines provided in this 2021 TOYOTA Camry manufacturer_communication.
Source: NHTSA Manufacturer Communication 10188917
Frequently Asked Questions
- Which Toyota models are affected by the transmission whine or grind noise?
- This issue primarily affects some 2021 model year Toyota Camry, Highlander, and Avalon vehicles equipped with UA80E or UA80F transmissions.
- What is the specific cause of the transmission noise in these vehicles?
- According to NHTSA Manufacturer Communication 10188917, the whine or grind noise is caused by an issue with the front carrier assembly pinion shafts within the UA80E and UA80F transmissions.
- What should I do if my 2021 Toyota Camry has a transmission whine noise?
- If your 2021 Toyota Camry, Highlander, or Avalon exhibits a transmission whine or grind noise, you should contact your local authorized Toyota dealership. They can diagnose the problem and perform the necessary repairs as outlined in the Technical Service Bulletin.
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