Info - Buzz Noise or Vibration Felt in Floor or Throttle Pedal at Approximately 16 km/h (10 mph) or During 1-2 Upshift

Some customers may notice a buzz noise or feel a vibration in the floor or throttle pedal at speeds of approximately 16 km/h (10 mph). It may also be noticed during a 1-2 upshift.

This buzz or vibration may be a result of the supplemental brake assist (SBA) diagnostic test. (The SBA is mounted on the brake vacuum booster and creates vacuum for the brake booster in case of a vacuum loss or low vacuum to the brake booster.) The test occurs at 16 km/h (10 mph) after initial engine start-up. Normally, the test will not run again until the next engine start-up. Customers may believe that this is a transmission related noise as the 16 km/h (10 mph) diagnostic test may be very close to the 1-2 upshift speed under certain driving conditions.

This is a normal condition and no repair attempts should be made.