Can i add extra after market bumper brake to my lexus is 250

https://eautorepair.net/Marketing/Default.asp

2008 Lexus IS250 AC low pressure charging port is located on the driver side close to brake booster. I accidentally saw it while changing the O2 sensor.

remove front wheels and check brake pads. If too thin, VSC will automatically turn off due to brake issues.

check the fuses first, then the connectors inside and under the hood at the control mechanism..also look at the vacuum control for this and make sure its good and cables are ok..good luck

I am not familiar with Lexus, however braking systems are usually the same for all cars.
I first suggest purchasing a service repair manual for your vehicle that will give you step by step instructions. Also, I suggest calling a dealer (mechanic, or experienced Lexus mechanic to see is if this is a procedure that can be done at home). Some newer, "classy" cars are designed differently and require special tools and/or procedures for repairs such as this.
There are bleeder valves (zirk fittings) on the backside of the brake hub. It will require (usually) an 8 millimeter opened end wreng (line wrench if you have access to one); otherwise a regular open end will work.
Also, you will need a second person to pump the brakes; you loosen the bleeder valve until fluid comes out and no air. Do this for each side (front and back) until no air is released. In addition, make sure you have extra brake fluid, as you will need to make sure the resevoir is full when finished, and may need to add between bleeding each side.
Follow these instruction for each side, then take the car for a short drive (don't go too far from place of service; home, shop etc). Then bring it back and bleed the same way one more time.
If you have any questions, please let me know.
carsandcomps,
Brandon

More than likely what you heard was disc brakes, sometimes they transfer harmonics making it feel like trans.

check and see if ground wire was removed during front bumper re-installation

check the brake pedal switch by connecting a test light to it and ground.

When the pedal depresses you might hear a click or see the button depress.

The test light should light or not light changing as you press and release the pedal.

Another way to do this is to change the brake pedal switch and see if it works.

I hope this helps.

Depending on how deep the scratches are, you may be able to keep the bumper. You can probably sand, bondo, prime and paint the bumper and be ok. If you choose to replace, after market bumper covers start and around $70 usd and OEM bumpers start at $250 usd. Good Luck I hope you find this very helpful!

DOUBLE CHECK BATTERY TERMINAL,THEN RESET IT.