Two problems related to battery dead have been reported for the 2005 Chevrolet Trailblazer. The most recently reported issues are listed below.
I have a 2005 chevy trail blazer the lights would flicker at night thought was battery had it checked out the battery was bad that was back in sept. Then around Jan I am driving down the road and doing 70 on the interstate and my speedometer goes from 70 to 120 mph and then goes down to neutral lights are flicking again as well and battery is fine.
2005 tb ext, summer of last year the computer had to be replaced, about 6 months ago the speedometer quit working, the check engine light stays on, the gas gauge wont work, the heater wont work on 5 and there is no heat in the front vents,the oil light does not work,, I have had it aligned but the back tires keep going bald,,it looses power so bad,,,,I went out this morning and the headlights wont go off and now my battery is dead. . . What else is left to go wrong??? I have 5 small kids and someone is going to get hurt because this vehicle is defective and no one wants to take responsibility to fix it. . So now when is someone going to fix this problem ?if I spend $24,000 on this used vehicle with only 30,000 miles on it when I bought it Feb 2008 it could at least run decent. . You would think it would be cheaper for Chevrolet to fix this vehicle than to have a lawsuit.