Hard-Shifting 2015 Silverado, Sierra, Yukon or Escalade? There's a Known Reflash Fix
Harsh shifts or RPM flare on a 2015 Silverado, Sierra, Yukon, or Escalade with the 8L90? GM’s TSB calls for a transmission control module reflash, not a rebuild.
Harsh shifts or RPM flare on a 2015 Silverado, Sierra, Yukon, or Escalade with the 8L90? GM’s TSB calls for a transmission control module reflash, not a rebuild.