leafwing wrote:I picked up the car yesterday’s afternoon.
The salesman told me the factory overcharged the A/C. The car went to a fail-safe mode as a result. The technician said there is nothing wrong with the car and assures me that nothing will happen to it again. No one mentions the engineer from Nissan.
Here are my observations, after driving the car:
1 There is a hissing sound arises when accelerating and decelerating. It is not persistent though. Drivers who are familiar with Prius at low speeds may know what I’m talking about.
2 Growling sound when I made a left turn. I do not know its source. The steering wheel does not have the same original feel.
3 When charging the car at home, humming sound comes from under the hood, like small fan sound. Charging was so quite before sending it to the dealership.
4. The salesman told me how I should not drive more than 60/65 mph on the hwy.
Other than that the car seems responsive and drives just fine.
The question to those who have the car longer than I do: are any of these sounds familiar or am I worrying too much after what has happened to my car?
I'd say #1 is definitely the pedestrian warning sound. It sounds to me like a pink noise hissing that is speed dependent. Try toggling the button on/off when you hear this while driving, and it will confirm if I am right.
#2 is likely the electric power steering. Every once in a while in the Prius I can hear a slight motor-type noise if I hold pressure on the wheel. The Prius uses a brushed DC motor which is located just behind the dash, so it's reasonable to expect some slight noise. If the "growl" was loud and repeatable, I'd get it checked.
#3 is the electric pump to circulate coolant back to the charger, and this is normal. (it is liquid cooled!) It may not start right away depending on ambient temperature, which might explain why you hear it now and didn't hear it at first.
#4: If there is one thing people should know now; it's NEVER believe a car salesman actually knows what he is talking about. There are some exceptions, but the best thing to do is RTFM (read the manual) and disregard stuff the stealer says.