Toyota definitely knows of this issue. In fact the cracking dash issue also occurs on the Lexus GX 470. Seems the 2003-2004 years are more common but it could be a matter of time before it affects the later years.
Here's a thread at ClubLexus that documents this exact issue:
cracked dashboard? - Club Lexus Forums
At $1000+ to replace, I wish Toyota would step up and do the right thing here and take care of these customers. As mentioned earlier, this could be a safety issue if the airbags deploy. So keep making some noise to Toyota until they do you right.
Here's a thread at ClubLexus that documents this exact issue:
cracked dashboard? - Club Lexus Forums
At $1000+ to replace, I wish Toyota would step up and do the right thing here and take care of these customers. As mentioned earlier, this could be a safety issue if the airbags deploy. So keep making some noise to Toyota until they do you right.