Gear shift is locked. we can only shift the car

Does placing it in neutral put the entire drive in neutral???? Yes . Taking the vehicle to a qualified repair shop that has a factory or professional scan tool to read code's in the transfer case control module is what you should do , you probably have no clue of the complexity of these 4X4 systems . How many buttons on the switch on the instrument panel ?
The BW 4493/4494 transfer case features a 4-button shift control switch (1) located on the instrument panel. When the vehicle has the ignition key in the RUN position, the transfer case shift control module starts monitoring the transfer case shift control switch to determine if the driver desires a new mode/gear position. At a single press of the transfer case shift control switch, the lamp of the new desired position begins flashing to inform the driver that the transfer case shift control module has received the request for a new mode/gear position. The lamp continues to flash until all shifting criteria have been met and the new mode/gear position has been reached, or has been engaged. Once the new mode/gear position is fully active, the switch indicator lamp for the new position remains ON constantly.

During normal driving situations, the transfer case operates in the 4HI mode. When the 4HI mode is selected, the transfer case shift control module sends 12-volts to an electrical motor, which is the transfer case encoder motor. This motor rotates the transfer case shift detent lever shaft which moves the shift forks and range sleeve to obtain different modes/ranges.
The BW 4493/4494 transfer case has the added feature of also providing the driver with 3 manual mode/range positions:
• 4HI - 4-Wheel Drive High Open
• 4HI Lock - 4-Wheel Drive High Locked
• 4LO Lock - 4-Wheel Drive Low Locked
The driver may choose to select any of these mode/range positions while driving the vehicle. However, the transfer case will not allow a shift into or out of 4LO Lock unless the following criteria has been met:

DTC B0790 Transfer Case Neutral Indicator Circuit Malfunction
DTC B2725 ATC Mode Switch Circuit Malfunction
The mode switch circuit consists of 5 modes. The transfer case shift control module supplies a regulated 5 volts, DC to the switch through the 5-volt regulator circuit. The current travels through the resistor of the currently pressed mode button. The current is then returned to the transfer case shift control module through the switch signal circuit.
The transfer case shift control module constantly monitors this signal voltage to determine the condition of the mode switch circuit.
When each of the modes are selected they will complete a circuit through their own specific resistor while the button is pressed. The transfer case shift control module continuously monitors the switch input to determine whether the Neutral, Differential Lock, 4HI, 4HI Lock, or 4LO Lock mode was selected by the driver.

DTC C0306 Motor A or B Circuit Malfunction
The transfer case motor is a bi-directional, permanent magnet, D.C. motor. When energized, through motor control A or motor control B, the ground is provided by the opposing motor control circuit and then grounded through the transfer case shift control module ground circuit, the motor, through a series of gears, rotates a shaft which moves the mode and range forks to shift the transfer case between the following ranges:
• 4HI
• 4HI Lock
• 4LO Lock
• Neutral
This DTC detects an open, short to voltage, or short to ground in the motor control A or motor control B circuits, or an open, or short to ground inside the motor.

DTC C0327 Encoder Circuit Malfunction
DTC C0329
DTC C0359
DTC C0550

The Borg Warner (BW) model 4493/4494 NR4 transfer case is a 2-speed, full-time 4WD, transfer case. The transfer case has an external planetary type differential, which has 2 different sets of pinion gears. The planetary differential provides a 40/60 torque split front/rear full-time. This means the front and rear propeller shafts are constantly being driven for maximum traction in all conditions. A high/low planetary carrier assembly provides the high and low ranges, which is a 6-pinion gear, sun gear, and annulus gear arrangement, giving a 2.64 low range reduction ratio in the BW 4493 and a 4:1 ratio in the BW 4494.

10 Most Common Transmission Problems

www.transmissionrepaircostguide.com/10-common-transmission-proble...

Ever notice that while driving that the car hesitates or refuses to go into gear? ... For automatic transmissions, you might notice that when shifting into drive or park ....Neutral and park gears no problem, but drive, 1st, 2nd and reverse engages ...

Trans Goes Into Neutral While Driving - Transmission ...

www.transmissionrepaircostguide.com/topic/trans-goes-into-neutral/

Jun 5, 2015 - When I put it in drive, and begin to drive away the transmission will put itself in neutral. When I slow back down, it will go back into gear.

shift lever does not move out of the PARK position with the ignition ON and the brake pedal pressed ?

Parking on an incline you "must" use the parking brake. You have damaged the "TBLS" Tranny Brake Lock Switch. Try turning your ignition to just before the "on" position and shifting into Neutral. Then start the car while in neutral and then shift to drive or reverse. Then drive it to a Chevy dealer for repair. This is a major repair requiring special tools.

sounds like a broken shift cable. (the connection between the shifter and the gearbox) common symptoms are the shifter move easier than normal.and does not move to any gears (not even park or neutral).

disconnecet battery for while see if that will reset it some times this works

have truck running,,put shifter in neutral,,shift into high lock 4x4,then put truck into gear,,u can shift from high lock to high gear,,from two wheel to four wheel,,in high only,,if u want to shift transfer case in low,,u have to put truck in ,,neutral,,first,,

Sounds like a linkage/cable to me. Disconnect the linkage at the transmission and move the shift actuator by hand to see if there is the same things happening. Don't try to do this with the engine running unless someone is holding the brake inside the car.

im sorry to say no it will not.

follow instructions in manual for SHIFTLOCK RELEASE

Turn off car.
Engage Parking Break
Take ignition key and put into shift lock release slot (near gear shift)
Push down on key and at same time MOVE gear shift to neutral.
Remove key, start car as normal and disengage parking break...

good to go.... mechanic can replace/repair if this is an ongoing issue: $85 I read somewhere...but heard it's not hard to do yourself for $35 someone else wrote.

Goodluck