"2005 4 cyl, 5 spd. bought used w/8,000 miles, put 30,000 mostly highway in one year. Problem with front end alignment and tire wearing on inside. Dealer tried 2 times to fix and somewhat better. AC blower resister failed. Dealer can't fix problem with AC evaparator freezeing up, been back 2 times. Now has 37000 miles and been in shop 2 weeks with intake valve seat problem, but GM covering with extended warranty, putting new head on. They would not give me a rental car while being repaired as they said out of original factory warranty. Cheap built truck w/ no outside door lock on passenger side, cheap seats and material in general. Truck does look good but too many problems to consider another one. I do get 25-27 mpg driving highway at speed limit and 22-24 combined."
"GM sent me an extended warranty for motor problems. Get rid of this pile of dirt as soon as you can. Nice looking truck. Too bad. Put the 4.3 in it. Tried and true motor. GM has lost their minds with the in-line 5."
"'05, Z-71, 2-WD, EXT CAB. Good truck all around. The two most troubling things with this truck is its awful turning radius and that there is no key lock on the passenger side door, get power locks for certain! Performance is satisfactory and I especially like the stiff suspension of the off-road package. I've had to have the AC control replaced and a brake light socket replaced. I average between 17-20 MPG with combined city-hwy driving, 19-21 hwy alone."