Table 1 shows one common unknown or other related problems of the 2005 Chevrolet Avalanche.
| Problem Category | Number of Problems |
|---|---|
| Unknown Or Other problems |
The speedometer in my '05 Avalanche stays at zero while driving or reads anywhere form 20-40 mph slower than I am going. I was doing about 50 mph on the freeway passing everyone (according to my speedometer) and passing everyone in sight. It felt a little fast so I turned on my gps and realized I was going about 80 mph. This is a major problem and gm needs to recall the vehicle.
Anytime I turn the air on in my 2005 chevy Avalanche it makes a high pitch screaming sound. I have had two blower motors installed and it is in need of a third. This sound is still present even after I have had the new motors installed. I have had one mechanic say their is a crack in the plenum box and it would take 11 1/2 hours to repair and cost $ 1700. This is the only quote I have had so far. I have had it at the dealership where I bought it and they never seem to find anything, then again they seldom do anything right.
The passlock system that comes on the 2005 chevy Avalanche can be bypassed by a pin hole in the drivers side key tumbler. Shuts off the system and interior items are accessible to thieves. A alternative security system has to be added to be secure. Chevy doesn't provide this. It has to be aftermarket.