Some Toyota Highlander owners report experiencing simultaneous illumination of the Trac Off, VSC, and check engine lights, which can indicate various underlying problems. These warning lights may also be associated with difficulty accelerating, particularly if the RPMs are revving at 3100 RPM at 65 MPH. Ignoring these lights or merely resetting them without addressing the root cause may not effectively resolve the issue. The Trac Off light suggests that the traction control system is disabled, potentially affecting acceleration, while the VSC Off light indicates that the Vehicle Stability Control system is turned off, which could impact vehicle stability. Given the importance of these warning lights as indicators of potential issues, it is recommended that owners consult a mechanic or dealership to diagnose and address the specific problems to ensure the performance and safety of their Toyota Highlander.
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