Service bulletins for the 2021 Toyota 4Runner
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
128 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Transmission and driveline are shown. Show all
| T-TT-0705-22 Rev | 2022-10-17. Service bulletin. POWER TRAIN. TT: If you see this condition, please create a TAS case and contact TAS for instruction prior to diagnosing or repairing of the vehicle. If it is a weekend or holiday, continue with diagnosis and repair. Please save all parts and/or details and contact TAS on the next available workday. |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.