2005 Sequioa

I have 2005 Sequioa w/11k miles. Intermittantly the AC panel will go blank, fan goes on high blowing hot air AND the engine temp guage drops to very cold or off. After about 4 minutes driving it comes back to normal. Also, when all is well, the AC is not as cold as it seems it should be. Any ideas before I go to the dealer?

Steve

I would let the dealer worry about it. Warranties are great. Good luck!