Technical Service Bulletin T-SB-0050-24 Rev2 — 2023 TOYOTA HIGHLANDER
ELECTRICAL SYSTEM
Bulletin Details
| TSB ID | T-SB-0050-24 Rev2 |
| Manufacturer | |
| Vehicle | 2023 TOYOTA HIGHLANDER |
| Component | ELECTRICAL SYSTEM |
| Communication Date |
Bulletin Summary
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.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.
Other TSBs for the 2023 TOYOTA HIGHLANDER
T-SB-0015-24 Rev2
ELECTRICAL SYSTEM
24TC05
ENGINE
T-SB-0027-24 Rev1
ELECTRICAL SYSTEM
24TC03
ELECTRICAL SYSTEM
23TJ01P4B
ELECTRICAL SYSTEM
TSB008123
ELECTRICAL SYSTEM
TSB008123
ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)
TSB008723
ELECTRICAL SYSTEM
TSB008723
ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)
T-SB-0081-23
ELECTRICAL SYSTEM