Add feature that locks all four wheels on to 2008 taco sport

Sorry for the confusion I got my son's rollover airbag button on the dash confused with the feature of locking all 4 wheels on my 2008 tacoma sport. I'm a new owner and working on figuring out some things. . I printed off info sheet from toyoto dealer on truck and don't know if my truck has this feature or not that evidently locks all 4 wheels in L2.My son has 08 with this feature and I would love to know I could use it in an emergency. Any help would be appreciated

 

You want:

1. To add "rollver side curtain airbags" to your truck?

or

2. To have a button to disable the RSCA from deploying due to tilt while 4 wheeling?

 

1. Trd sport doesn't have locker
2. Even if it did it's only the rear not all 4

 

you can add front and rear lockers and buttons to push as well if thats what your asking