2004 Toyota Highlander Owners Manual - Page 180
2004 Toyota Highlander Manual
Page 180 highlights
'04 HIGHLANDER_U (L/O 0308) Audio remote controls (steering switches) Some parts of the audio system can be adjusted using the switches on the steering wheel. Details of the specific switches, controls, and features are described below. 1. "+ −" switch 2. " ƜƝ" switch 3. "MODE" switch 180 2004 HIGHLANDER from Aug. '03 Prod. (OM48478U)