general problems of the 2012 Toyota 4Runner

Vehicle radiator light came on, shortly thereafter (5-10 min) vehicle overheated. Waited for vehicle to cool down, then drove home. The following day drove the vehicle to dealership. After an inspection the dealer stated the heads are cracked and needed to be replaced. When I asked how this could happen to a car that is regularly serviced with only 90k miles his response was "the original heads were made of weaker metal, the replacement ones are upgraded. We haven't had any come-backs on the ones we've replaced". I then asked, well how many vehicles has this impacted? sounds like this should be covered under a recall? his response "we've had quite a few in the past month or so, seems to be happening when vehicles get to the 70-80k range. " sounds to me like Mazda knew the heads were made from inferior products which is why they upgraded the part on newer models.

Got code p2440 and was quoted 2000. For repair and only just 47107 miles.

Toyota uses new green (environment friendly) wiring that is tasty to rodents and other pest- they are aware that it can attract animals to eat the wiring and electrical systems on their vehicles and refuse to cover the damages incurred on the warranty - they refer the customers to seek monetary aide from their insurance company - in my case it was $3000. 00 in damages to my vehicle for a rat eating the wires /electrical system. My insurance paid for it - but how can I be assured it will not occur again. ?? Toyota needs to be responsible.