Service bulletins for the 2023 Toyota Highlander
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.
150 on file from NHTSA, as of 2026-10-19.
About P15AD on the 2023 Toyota Highlander: what the code means, and the bulletins and recalls about the same components.
By type
By component
By trouble code
Only bulletins with trouble code: P15AD are shown. Show all
| T-SB-0050-24 Rev2 | 2025-01-09. Service bulletin. ELECTRICAL SYSTEM. Some 2022 – 2024 model year Tundra and 2023 model year Highlander vehicles may exhibit a MIL ON condition with Diagnostic Trouble Codes (DTCs) P162B87 (Lost Communication with Battery Monitor Module Missing Message) and/or P15AD87 (Active Grille Air Shutter "A" Missing) present. The battery state sensor assembly has been updated to prevent the condition from occurring. |
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| T-SB-0050-24 Rev1 | 2024-11-08. Service bulletin. ELECTRICAL SYSTEM. Some 2022 – 2024 model year Tundra and 2023 model year Highlander vehicles may exhibit a MIL ON condition with Diagnostic Trouble Codes (DTCs) P162B87 (Lost Communication with Battery Monitor Module Missing Message) and/or P15AD87 (Active Grille Air Shutter "A" Missing) present. The battery state sensor assembly has been updated to prevent the condition from occurring. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.