2000 Lexus RX 300 - VSC Light comes on and brake pulsation

high speed and heavy braking will produce a pulsation in the pedal
that is the abs working properly and the pulsations are the brake release and reapplying
intermittent abs light indicates a wire or wheel sensor problem at one of the wheels

Hi Sheri, happy that you managed to sort out the problem. The operation of the ABS pulsates as you have described. It sends a small electrical charge to the management system, telling the system when the brake is about to lock and momentarily releases that particular brake for that wheel. If the wheels lock when braking and the vehicle skids, control is lost. With ABS the skidding is eliminated and thereby making the vehicle safer. Regards John

The brake lights are controled basicly with a switch mounted to the brake pedal . In most cases it is adjustable by adjusting a nut that will eighter lenghten or shorten the travel of the plunger at the stop point . So if the lights stay on with no pedal pressure the adjustment needs to be shorter and if they are not comeing on it would need to be longer . However the question isn"t vary clear to me .My brake light is not ABS on my Lexus RX300. Try to find out what else is efficted there are other switches involved like the cruise control brake switch witch when you hit the brake will shut the cruise control off and is wired to the main brake switch . Or is the vehicle pulling in one deriction or the other when you apply the brake that would be a brake pad or shoe problem . So how do the brakes work . If you could clarify the problem i could help you much more

Did you forget to disengage the parking brake?

Brake pads won't fix it. You need to have the computer scanned for codes.

VSC is Vehicle Stability Control. This is and electronic sensing which monitors and combines performance of braking, wheel slippage and handling, ect.
If this light comes on along with check engine light, it can be caused by a loose gas cap or faulty o2 sensor.

Sounds to me like someone has perhaps knocked the ABS sensor while working on the brakes. The ECU in these cars interlinks various stability and braking components. Go back to the service center and ask them to put a code reader on the car and get a read out. It may only require that they reset the fault codes, but do not delay. On some Lexus vehicles these lights will also come on when the battery has been disconnected and there will be a reset for the programs, but the TRAC off light has never come on on my 2001 when doing brakes or battery swap.
nice find an 02 with 75,000. My 2001 is over 160

If you are talking about the "VSC Off" light, it means that the button to disengage your cars Vehicle Stability/Skid Control" system is engaged. Press the VSC button, the system should reengage, and the light should turn off.
If you are talking about the other VSC light, it means that your car has been forced to take evasive action to avoid a dangerous situation. For example, if you are driving on an icy road, and take a turn too tight, the vehicle may be forced to apply pressure to one of the brakes to prevent the car from loosing control. In this situation the VSC indicator light will light up to alert you that the action was taken, and remind you to possibly slow down.

VSC means Vehicle Stability Control.

It comes on when the sensor send a signal that the vehicle is not stable on the ground.....check the wheel balancing and alignment and the air pressure of your tires too.

Good luck.

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Possible causes- low spot on the rotors. Caliper pins not sliding with pulsation. May not need to replace pads.