Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2011 Toyota 4Runner TrailFACTORY OEM SERVICE PROCEDURE

Downhill Assist Control Switch: Installation: Installation

INSTALL DOWNHILL ASSIST CONTROL SWITCH
1. Attach the 2 claws to install the downhill assist control switch to the map lamp assembly.
  
  Fig 1: Identifying Downhill Assist Control Switch
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Connect the 2 connectors.
INSTALL MAP LIGHT ASSEMBLY See step 2
INSTALL DRIVE MONITOR SWITCH See step 1
PERFORM DOWNHILL ASSIST CONTROL CALIBRATION
1. Perform downhill assist control switch calibration. Refer to CALIBRATION .

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.