One problem related to transmission gear slipping has been reported for the 2006 Chevrolet Avalanche. The most recently reported issues are listed below.
Transmission slipping. When traveling at shift point 1-2, 2-3 the engine rpms suddenly increase then return to nominal speed. The mileage is way to low for this behavoir. I believe gm should issue (or pay for) the parts (the toughened or improved parts) to correct this problem or re-reimburse the current owner for the retail cost of the gm (improved) parts if the owner chooses to have the work done else where. The shifting action is not firm, it's sloppy. At times you can't feel the shift in the conventional way but you can hear it.
| Power Train problems | |
| Transmission Noise problems | |
| Transfer Case problems | |
| Transmission Failure problems | |
| Transmission Solenoid problems | |
| Automatic Transmission problems | |
| Transmission Gear Slipping problems |