Console light came on with wrench and four wheels and drive shaft

Which of these does your vehicle have ?

Transfer Case - NVG 233-NP1 (Two Speed Selectable)
Transfer Case - NVG 136-NP4(One Speed Automatic)

The New Venture Gear NV233 is an electronic shift transfer, with the following three modes of operation, Two-wheel drive high range, Four-wheel drive high range, Four-wheel drive low range. The gear reduction for low range is provided by a planetary gear set. The floor-mounted shifter has been eliminated. A switch, located on the upper right side of the instrument panel, is used to select the operating range. The indicator lamps on the switch show the current mode of operation. When the four-wheel drive has been selected, the four-wheel drive indicator lamp on the switch is designed to turn on when the front axle has engaged.


Automatic Transfer Case
The single speed automatic transfer case system shifts automatically from rear wheel drive to four wheel drive when the transfer case shift control module (TCSCM) senses the difference in rotation speed of the front propeller shaft and the rear propeller shaft . Two vehicle speed sensors, one located at the rear output shaft area of the transfer case, and the other, located at the front output shaft area of the transfer case, send front and rear propeller shaft rotation speed information to the TCSCM.
When the front and rear output shaft rotations remain the same, the TCSCM sends pulse width modulation signals to the encoder/motor to keep the transfer case in rear wheel drive. When the front and rear output shafts rotations are different, the shift control module sends pulse width modulation signals to the encoder/motor to engage the transfer case into four wheel drive.
The system will automatically transfer a percentage of torque to either the front or rear axles as required to stop all wheel slip. When the front and rear output shafts rotations return to the same speed rotation, the shift control module sends pulse width modulation signals to the encoder/motor to position the transfer case back into rear wheel drive.
When the transfer case is engaged into four wheel drive, a lamp indicator on the instrument cluster will light. The automatic transfer case system is completely automated, no transfer case control button switching system is required.

Do you know what diagnostic trouble code's are ?

DTC C0300 Rear Speed Sensor Malfunction
DTC C0305 Front Speed Sensor Malfunction
DTC C0308 Motor A/B Circuit Low
DTC C0309 Motor A/B Circuit High
DTC C0310 Motor A/B Circuit Open
DTC C0315 Motor Ground Circuit Open
DTC C0374 General System Malfunction
DTC C0376 Front/Rear Shaft Speed Mismatch
DTC C0550 ECU Malfunction
DTC C0611 VIN Information Error
DTC C0895 Device Voltage Malfunction

Not OBD2 engine code's .

The light is a service needed reminder, consult the dealer or your owners manual for details

did you turn the locks on the wheels, or check the fuses

can be done with a few mods

needs the.engine bay wiring loom of the V6 ... ECU if not diesel
will need the V6 gearbox and transfer case

V6 exhaust and fuel pump

unknown ratios but check if
power train, diffs and drive shafts are the same as th e4

Elizabeth: It could be the power train module. This is a computer that tells the drive train everything (like what gear to be in and how much gas to add). Part of the power train module goes to your dash lights. It is usually located underneath the center console, or under the driver's seat or sometimes under another seat. You can go to the wrecking yard, get one that is for your trailblazer and try that.

It's the transfer case motor.I had the same problem exactly and replaced, now it works great. Part is about $100.00 ( aftermarket ) .Ifyou are going to replace yourself you will have to remove front drive shaft and remove yoke from transfer case with an impact wrench for clearance to remove transfer case motor . When you put the new transfer case motor in make sure you line up slot with grove in transfer case motor. Good Luck.

The drive train is what "Drives" the vehicle literally, and it consists of the engine, the transmission, the drive shaft, (if rear wheel or 4 wheel drive) and the front/rear axle. (Depending on front wheel drive, rear wheel drive, or 4 wheel drive)

It would sound like that garage is basically telling you that you need a new vehicle.

Just a thought, Check under bonnett on passenger side is a fuse that when installed dis-engages the rear drive. Remove the fuse to engage the rear drive. Sometimes people see the open fuse holder and fill the slot thinking it is missing. Truth is it is only for short towing. Good luck and have a great day.

i'll bet this is a front wheel drive or four wheel drive. when the front wheels are tied to the drive train. the front axle shafts bearings can go kaput. jack up the vehicle and turn the steering wheel all the way to one side and spin one tire at a time by hand. you are bound to hear snaping and cracking coming from the axle shafts.

Not true. If you have the fuse in place to disconnect the rear wheels it is safe to tow on a dolly. Subaru recommends not more than 40 MPH and only for short distance if it is an automatic. Manual may be towed longer distance. Have a great day.