2025 Toyota Grand Highlander Electrical Problems
2 owner-reported electrical complaints from NHTSA data
Data sourced from NHTSA public database. For informational purposes only. Always consult a qualified mechanic.
Electrical Recalls (1)
ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2023-2024 Toyota Venza, 2023-2025 RAV4 Prime, RAV4, Highlander, GR Corolla, Crown, 2024-2025 Lexus TX, LS, Toyota Tacoma, Grand Highlander, and 2025 Lexus RX, Toyota Crown Signia, Camry, RAV 4 Plug-in Hybrid (PHEV), and 4 Runner vehicles. Due to an error in the instrument panel software at vehicle startup, the instrument panel may fail to display vehicle speed, brake system, and tire pressure warning lights.
Fix: Dealers will update the instrument panel software for non-PHEV vehicles, free of charge. For PHEV vehicles, dealers will inspect the instrument panel assembly, and either replace it, or update the software, free of charge. Owner letters were mailed December 5, 2025. Owners may contact Toyota's customer service at 1-800-331-4331. Toyota's numbers for this recall are 25TB08 and 25TA08. Lexus' numbers for this recall are 25LB05 and 25LA05.
Owner Complaints (2)
Your back-over prevention system isn't working properly when you're reversing. You can see the backup camera image, but you're not getting the warning tone when an object is detected, and you're seeing a message that Adaptive Cruise Control is unavailable. Your automatic braking system has also activated on its own multiple times. The dealer couldn't reproduce the problem when they checked it, but the issue started about two weeks after your instrument cluster was replaced.
Parts you may need:
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Your Grand Highlander is missing wire connectors for the puddle lamps (the lights that illuminate near the doors) on both the driver and passenger sides. While this isn't a safety issue, it suggests there may be a manufacturing oversight or wiring diagram error at the factory, and potentially other missing wires elsewhere in the vehicle. A dealer can install the missing connectors and wires to complete the puddle lamp circuit.
Parts you may need:
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