CarComplaints.com Notes: It didn't take long for the cladding to fade, discolor, and in some cases crack. Cladding is the protective plastic piece that runs along the outside of vehicles, and exposure to both heat and UV rays give the Avalanche's cladding a chalky, faded appearance.
Owners have said the problem is especially bad on the panels near the cargo bed. Eventually, GM agreed to a one-time treatment of ArmorDillo, a protective treatment similar to what you find in any auto shop. Unfortunately, that would only help for 6 months (on average).
Eventually, GM offered another coating solution for owners within the 3 year / 36,000 mile original warranty under TSB:04-08-111-001C.
The engine uses at least a quart of oil when driving on the interstate for an extended period of time. The longer after an oil change the worse the problem is. The engine is fine driving in town, but after several 60 plus mile trips I notice the oil level is low. The truck has proven to be unreliable on the interstate, and for out-of-town driving.
A D V E R T I S E M E N T S
The engine uses at least a quart of oil when driving on the interstate for an extended period of time. The longer after an oil change the worse the problem is. The engine is fine driving in town, but after several 60 plus mile trips I notice the oil level is low. The truck has proven to be unreliable on the interstate, and for out-of-town driving.
- Jeremy E., Brownsburg, IN, US