Like many of you, I experienced the premature SAIS failure (85,000 miles) that, apparently due to moisture, causes the port to remain open and thus induces the fault code and subsequent limp mode. After having the first one replaced by Toyota under the extended warranty issued for this part, I had the new one fail again in less than 1.5 years. Got the brush off from Toyota on this one as it falls just outside of the warranty parameters this time. Have for a few days now, endured a protracted startup procedure of; stating the vehicle and allowing it to warm up past the point of when the pump is supposed to close then disconnecting the battery to clear the fault code and restarting with copious revving of the engine which somehow manages to force the port closed after numerous attempts. I’d have to be pretty daft to pay what they are asking to have this BS part replaced for a second time. So, I ordered the plug and play bypass kit from Hewitt Technologies for $259 and my problem is solved. No BS part and no BS startup procedure. Don’t waste your money having Toyota replace a part that is doomed to fail anyway!
4x4 pick up with known defectively designed for pump subject to failure when exposed to dirt and water, they locate it under the right front wheel well. Sure, they offer an "enhanced warranty" good for ten years or 150,000 miles, which ever comes first. I bought mine used, unaware of this. At 84,000 miles air pump fails, 10 months out of "enhanced warranty". Cost of repair $2,600+, absolutely no sympathy from Toyota, screw 'em I'm going back to Ford. They should have recalled and replaced every one of these parts but, no, they stand to profit from the repair.
The only issue I’ve ever had is the “Bed Bounce” experienced on certain concrete highways. It’s very annoying and embarrassing, looking into the mirrors and watching the bed vibrate 2 to 3 inches up and down is disconcerting. Toyota never really addressed it until years later and then I was told that the fix might not work and would come out of my pocket.