I have a lexus RX350 2013 and it now has a loud squeaky noise from the back interior when i drive. Its getting louder and louder. Please help

Check

#1. Rear Tires
#2. Rear differential
#3. Transmission
#4. Ball Joints / CV

the hard power steering is given away by the loud squeaky noise . It is the drive bely slipping from worn out or needs adjustment.. If the key problem is in the switch the replace the switch of if it is not engaging the starter motor have a look at the battery connections (shiny clean and tight) or the solenoid or starter relay.

for one ur motor is going out it is the rod

Head Gasket & or Damaged & Blocked Exhaust
Converter

Can't you mechanic diagnose & tell you all that?

serpentine belt

It needs a new drive/alternator/serpentine belt. It is a problem with older cars, as the belt wears out, it gets squeaky. It should be a quick, cheap replacement job.

cv axle..replace them both

it sounds like the car is a front wheel drive??
then the noise will be the CV (CONSTANT VELOCITY) joints in the front end.
these drive the wheels from the transmission but are a big swivel joint that allows the axle to turn when you turn the wheels
these have ball bearings in them and are full of special grease
they are worn out when they make a very loud clicking noise (LOUDER WHEN YOU TURN A CORNER UNDER POWER)
THEY HAVE A RUBBER BOOT AROUND THEM THAT STOPS THE GREASE COMING OUT AND THE DIRT AND GRIME GETTING IN.
if the rubber boots become perished and crack the grease comes out and the dirt and water (rain) gets in

Hi my name is Tom and I can help you.

Driving with your emergency brake on is only going to affect your rear brakes. There is a cable running from the emergency brake lever to your rear brakes.

You did not say how long you drove with the emergency brake on, but even a short distance and you forced the front brakes to do the work of stopping the car. This causes overuse which translates to heat. When the brakes over heat they "fade" and do not stop the car effectively.

In addition the heavy load of doing all the stopping causes the brakes not to realign. Therefore, when you go around corners the brakes pads will rub against the rotors.

I would suggest you get the brakes looked at or look at them yourself. I can help you do the job but I would need to talk to you directly. Let me know what I can do to help.

TomE

One of three things. I would start with removing the belt and checking the idler and tensioner pulleys to see if they are running smoth. The third item would be the ac compresor brg.