TRD off road diff locks

My diff locks are not engaging. Do you have any ideas why they are not engaging?
Thanks

 

Might have to move back and forth a bit till it engages. A solid light will stay on instead of blinking

 

Did you just buy the truck? If the diff locker is not engaged periodically, the actuator might freeze up. I try to engage mine at least once a month to make sure its always functioning properly.

 

i tried that and all it does is blink

 

i bought the truck about 3 months ago and when i test drove the truck it did engage. i tried it yesterday and it didn't engage.

 

Did you try switching between reverse and drive? Sometimes it takes a bit of rocking back and forth before it engages. And I'm assuming you are trying to engage it on a dirt road or gravel? Don't do it on pavement!

 

You may have to turn slightly while rolling forward/backward to get things to line up and engage (the back wheels have to turn at different speeds). Mine rarely engages without turning slightly and rolling.

 

Correct, ill try that. Thanks for the info.

 

Is it a 4WD? If so, then it needs to be in low range first.

Next, from a stop, no foot on brake roll forward a bit THEN press the RR Lock button, roll forward a bit, if blinking still, turn the steering wheel all the way one direction (left or right) and roll forward while turned. That always does it if it didn't before.

 

^

Usually kicks on when I am turning the wheel to the left and back to the right while slightly moving forward.