You’re an off-roader. Right? You’ve been on epic hills, and accelerated from a stop, and found you’re spinning your wheels, going nowhere. Well, it’s A-TRAC to the rescue. The 4Runner’s Active TRAC traction control steps in automatically when it senses four wheels slipping as you start to accelerate on slippery roads to help you maintain traction.

A-TRAC provides the traction benefit of locking front and rear differentials but with less weight.
- To activate, stop the 4Runner, shift the transmission gear to neutral, and the transfer case shift lever into L4.
- Press the A-TRAC switch to activate the system.
- When A-TRAC is active and operating, the indicator light will flash to indicate the system is engaged, and you’ll feel a reduction in the accelerator’s response. That’s normal.
- The driver can switch A-TRAC track on and off as needed by the terrain.