Sounds like your differential lock became loose. Could be caused by a rock or tree branch hitting underside. You won't be able to engage 4 wheel drive, so have it looked at.
The blinking D on the Honda Accord means that the transmission is throwing out a code just like a CEL.
The 2010 Toyota Sequoia has rear wheel drive.
The 2012 Toyota Sequoia has rear wheel drive.
The 2001 Toyota Sequoia has rear wheel drive.
The 2013 Toyota Sequoia has rear wheel drive.
The 2007 Toyota Sequoia has rear wheel drive.
The 2008 Toyota Sequoia has rear wheel drive.
The 2002 Toyota Sequoia has rear wheel drive.
The 2014 Toyota Sequoia has rear wheel drive.
The 2003 Toyota Sequoia has rear wheel drive.
The 2005 Toyota Sequoia has rear wheel drive.
The 2011 Toyota Sequoia has rear wheel drive.