Some 2020 Silverado 2500/3500 and Sierra 2500/3500 models may have a brake squeal condition caused by the low scorch friction material used on the original brake pads.
New brake pads are available that have a high scorch friction material to reduce the potential for noise. Replace the front and rear brake pads with the new pads.
TIP: Each brake pad has an Inner or Outer label to indicate where it should be installed. (Fig. 6)
Fig. 6
If the pads are replaced and the squeal sound continues, check the orientation of the pads. If the inboard and outboard designation on the pads indicate the pads are installed in the wrong location, the squeal sound may persist.
Keep in mind that only the left side of the truck has the wear sensors, which are mounted on the inner pad. (Fig. 7)
Fig. 7
Refer to Bulletin #20-NA-020 for additional information and part numbers.
– Thanks to Kevin Minor
