# 2006 Toyota Tundra 4WD Truck - 4WD is a no-go

**URL:** <https://community.cartalk.com/t/2006-toyota-tundra-4wd-truck-4wd-is-a-no-go/174910>\
**Category:** Maintenance/Repairs\
**Tags:** toyota\
**Created:** [February 10, 2021, 10:48pm UTC](https://community.cartalk.com/t/2006-toyota-tundra-4wd-truck-4wd-is-a-no-go/174910 "2021-02-10T22:48:04Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![weldman](https://avatars.discourse-cdn.com/v4/letter/w/94ad74/32.png) [@weldman](https://community.cartalk.com/u/weldman)\
**Post date:** [February 10, 2021, 10:48pm UTC](https://community.cartalk.com/t/2006-toyota-tundra-4wd-truck-4wd-is-a-no-go/174910/1 "2021-02-10T22:48:04Z")

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wont go into 4 wheel dr.light flashes on button

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**Author:** ![Covered\_way](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/covered_way/32/23976_2.png) [@Covered\_way](https://community.cartalk.com/u/Covered_way)\
**Post date:** [February 11, 2021, 12:20am UTC](https://community.cartalk.com/t/2006-toyota-tundra-4wd-truck-4wd-is-a-no-go/174910/2 "2021-02-11T00:20:52Z")

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How often do you put it in 4WD?

I have been told if you don’t use it, it will get stuck. This happen to a Discovery Series One center diff lock.

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**Author:** ![davepsinbox\_157004](https://avatars.discourse-cdn.com/v4/letter/d/73ab20/32.png) [@davepsinbox\_157004](https://community.cartalk.com/u/davepsinbox_157004)\
**Post date:** [February 11, 2021, 1:39am UTC](https://community.cartalk.com/t/2006-toyota-tundra-4wd-truck-4wd-is-a-no-go/174910/3 "2021-02-11T01:39:02Z")

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The 4wd actuator is probably stuck, possibly from internal corrosion. If possible, whack it with a rubber mallet and see if the light goes out. If it does, you’ve found the problem.