One problem related to brake sensor has been reported for the 2006 GMC Sierra 2500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 GMC Sierra 2500 based on all problems reported for the 2006 Sierra 2500.
Brakes fade near the end of a braking cycle. No warning lights displayed even though brake pedal felt like it had increased travel or mushiness. Cause; excessive and premature corrosion and pitting of all four original equipment brake rotors. Also, excessive corrosion of brake sensors and brake calipers necessitates an extensive repair. Original brake pads are in good condition repairs needed; replacement of rotors, sensor, calipers and brake pads. Bolts seized by corrosion broke on removal of brake components and this resulted in replacement of sensor and all calipers. The cost of the repair was $2100. 00. My opinion; poor quality metals in original factory rotors caused a significant brake failure on this vehicle which caused braking safety issues and an expensive repair. This is a safety issue because; poor braking occurs and the high cost of repair will mean some owners of this vehicle will put off repairs and continue operating this vehicle with damaged brake systems. I think this vehicle should be recalled because this is a safety issue and the manufacturer should take at least some responsibility to repair this model. The 2500 (3/4 ton) series that I own is mostly used by contractors and others who pull or haul heavy loads. So, the brakes really do need to work.