Bulletins
| Bulletin | Bulletin date | Replacement Bulletin | Item no. | Summary | Added |
|---|---|---|---|---|---|
| POWER TRAIN - AUTOMATIC TRANSMISSION | |||||
| 08-07-30-023 | 05/01/2008 | 10025670 | 4l60-e/4l65-e/4l70-e automatic transmission fluid leak from oil pump or bell housing area (replace torque converter hub-to-oil pump seal assembly). attn: this bulletin applies to vehicles built prior to december 2007. *pe | 08/28/2008 | |
| 3931 | 09/28/2006 | 3931A | 10021018 | No movement when the shift lever is moved to d4 or d3. normal operation when moved to d2 d1 or reverse. *kb updated. *kb | 02/22/2007 |
| POWER TRAIN - AUTOMATIC TRANSMISSION - CONTROL MODULE (TCM, PCM) | |||||
| 3061 | 12/01/2007 | 3061F | 10023773 | Dtc c0327 with or without additional dtc's setting. with four wheel drive (4wd) only. *nj | 01/31/2008 |
| POWER TRAIN - AXLE ASSEMBLY | |||||
| 06042003 | 10/01/2006 | 10020950 | Revised rear axle fluid capacity and fluid level checking specification. *kb | 02/01/2007 | |
| 030417002 | 12/01/2006 | 030417002A | 10001111 | Whine noise from rear axle. *tt | 04/15/2003 |
| POWER TRAIN - MANUAL TRANSMISSION | |||||
| 3136 | 3136K | 10021019 | Slip condition in 2nd, 3rd, or 4th. damaged 2-4 or 3-4 clutch. *kb updated 10/31/07. *nj | 02/22/2007 | |
| 4108 | 10020876 | Transmission shift indicator adjustment. *kb | 01/25/2007 | ||
| POWER TRAIN - TRANSFER CASE (4-WHEEL DRIVE) | |||||
| 05-04-21-003 | 01/01/2008 | 050421003C | 10017464 | Service 4wd light illuminated, diagnostic trouble code (dtc) c0374 set. *tt updated 10/05/07. *nj inspect wiring harness to transfer case speed sensors, replace wiring harness. updated 7/18/08 *pe | 11/08/2005 |
| 3424 | 3424A | 10017299 | Electronic transfer case unable to complete shift. *tt | 11/02/2005 | |
Consumer Complaints
| Fail date | miles | occurences | Purchase date |
|---|---|---|---|
| POWER TRAIN - AUTOMATIC TRANSMISSION | |||
| 02/20/2007 | 200 | 6 | 02/16/2007 |
| I have a 2007 chevrolet trailblazer ls. we bought it with 13 miles on it when the first full tank of gas was gone we only put on 235 miles to the tank. that wasn't even a week. we have had 2 tires replaced because of excess wear with only 6,000 miles on it. now we are working on the 2 other tires getting replaced because of the same thing. the windshield washer fluid would take a long time to come out. we hear a noise coming from the front right tire and at the same time we feel it in the pedals. the seals on the windows are coming off. there is no drivers side cover on the mirror on the sun shade. there is no door ajar ding or light that will come on when you open the door only just for the hatch. i have had my trailblazer in for service 3 times in 1 year for all the same things and everytime they say there is nothing wrong with it except for the tires. with the gas mileage my dealership said i have to wait 10,000 miles before i get a better average on the miles per gallon. well it is actually i am getting less and less miles per gallon than i did a year ago. the trailblazer is very slow at picking up speed. it hesitates at the start of pick up speed like the truck just stalled. i feel it in the pedal. the brakes have problems when it comes to stopping its like the brakes don't want to stop the truck. these problems are making me very upset. i have complained to 2 dealerships and both times they say oh there is nothing wrong with the truck. i need these problems fixed. so i will take any advice you can give on what i can do. *tr | |||
| 03/03/2007 | 3 | 01/16/2007 | |
| 2007 chevy trailblazer with multiple issues. customer states that her vehicle has brake problems, front end vibration problems, tire wear, and excessive fuel consumption. *kb the brakes made a squealing and dragging noise when coming to a stop. it would take several attempts to close the liftgate, the engine would misfire/stall while in idle, there was a smell of oil burning, the vehicle was slow to gain speed, there was extreme noise coming from all of the doors and windows. the settings for the side mirrors did not keep their memory. the rear hatch would open while driving. the consumer stated there was a vibration coming from the front of the vehicle. | |||
| 05/28/2007 | 13200 | 1 | 09/30/2006 |
| While accelerating onto a major roadway, my vehicle completely lost power. as the speed limit was 55mph, i had to cross my finger and pick a spot to maneuver the vehicle off the roadway and hope that it had enough momentum to do so. my vehicle is still in the shop however anecdotal evidence from the internet finds that the 4l60 and 4l70 are rife with failures that result in complete loss of power of the vehicle. the faulty part seems to be the sun shell and has faults across the gm lineup. i'm very surprised they have not been forced to recall this defective transmission. *tr | |||
| POWER TRAIN - MANUAL TRANSMISSION | |||
| 11/05/2007 | 95 | 1 | 10/31/2007 |
| Transmission went out after driving it for only 2 days after purchase. vehicle. had 15 miles at purchase; towed in with 95 miles. vehicle had no power in reverse nor drive. gm only offered to repair or replace the trans. would not replace vehicle or give money back. they placed a rebuilt. trans in a new car and since then the vehicle. has been giving me problems. does not accelerate as prior to fix; hesitates when accelerating feeling like it's ready to stall. gas pedal sticks at times; giving vehicle. gas when i'm not pressing on the pedal. these are major safety issues. the selling dealer service dept took one day and 8 mile test drive to say they couldn't find nothing wrong with the car. willing to leave vehicle. for 3 days, dealer would not write it up. *cn | |||