2009 Toyota Matrix Owners Manual - Page 439

5-2. Steps to take in an emergency CAUTION n When the spare tire is attached The vehicle speed may not be correctly detected, and the following systems may not operate correctly: l ABS & Brake assist l VSC (if equipped) l TRAC (if equipped) l Navigation system (if equipped) Also, not only can the following system not be utilized fully, it may actually negatively effect the drive-train components: l Active torque control 4WD system (if equipped) 374