Table 1 shows four common engine and engine cooling related problems of the 2012 Toyota Sienna. The number one most common problem is related to the engine and engine cooling (six problems). The second most common problem is related to the engine noise (one problem).
| Problem Category | Number of Problems |
|---|---|
| Engine And Engine Cooling problems | |
| Engine Noise problems | |
| Car Stall problems | |
| Engine Knocking Noise problems |
Coolant leaking from rear of the engine through the head gasket. Vehicle struggles to accelerate beyond 55mph or 80kmph. A quick search on the internet shows that this is a frequent occurrence in this 3. 5l v6 engine from Toyota model years 2011 through 2017. Read details...
Joining highway in a situation where vehicles giving way cause hesitation and then give way causing braking then acceleration repeatedly, transmission refused to downshift on kick down, vehicle would not accelerate, actually slowed significantly forcing following vehicles to brake . Read details...
The contact owns a 2012 Toyota Sienna. The contact stated that while driving 75 mph, the vehicle stalled without warning. There was no braking power and as the contact attempted to guide the vehicle off the roadway, he crashed into a curb. Read details...