No Lube Needed for Toyota Accelerator
The accelerator pedal sensor (see in red) does not require lubrication. According to Toyota, lube will damage the sensor.
Toyota advises not to apply any lubricant to the accelerator pedal sensor assembly during inspection or service. This applies to 2001-2013 models.
The accelerator pedal does not require lubrication. Do not apply any oil or other lube to the pedal sensor assembly. If applied, the accelerator pedal sensor assembly must be replaced.