[Jim Frye]

First put into service means the date that the first owner takes delivery from the dealer as a new car. That's when the factory warranty starts. Also, the odometer reading is noted (or at least should be) when that first delivery takes place. You could buy a new car that has been a dealer demo vehicle with 300 miles on the odometer and that is the mileage when the new car warranty begins. Hopefully, you have the requisite documentation to shove before the service writer when the time comes.

What is the mileage limitation on your factory warranty? If you've gone beyond that limit inside of the 5 years, you may be out of warranty on certain issues. If your odometer really reads over 500,000 Km, then that's over 310,685.596 miles. That's well beyond any factory warranty that I know of.

 

[Jim Frye]

Re: the brake noise.
1. Is the noise audible when you are driving without the brakes being applied? If so, the pads are not retracting fully from the rotors and are sort of just skimming them lightly enough to cause the noise.
2. Does the noise go away when you apply the brakes? Again, they might not be retracting fully due to corroded caliper slides.
3. How old (miles) are the pads? Are they the originals? Guessing they are and after five years of use, things might be a bit corroded in the area despite the cleaning two years ago.
4. If the brakes squeal when they are applied, I'd bet the pads and/or rotors are glazed. This would warrant a brake pad and rotor turning or replacement service. In this instance, the noise might also be the wear fingers on the pads doing their job. They're little metal fingers that screech on the rotors to let you know the pads are worn enough to require replacement. A quick inspection by a mechanic that knows (or gives a crap to look) will tell you this.

 

[Jim Frye]

Wait! I just noticed that this is a 2011 LS. Doesn't that model have rear drum brakes? There might be debris in the drums causing the noise. Just a guess on this. Robby, a little help please.