Tonneau cover Help tonneau cover is resting on the rear of the top. The top is down but the Tonneau cover is resting on it

Manually Moving the Folding Top from the Down Position
Important: Allow the system a minimum of four minutes to bleed down pressure after the last cycle.
Manually release the folding top cover latch using the emergency release cable.
Raise the folding top stowage cover.
Manually raise the folding top, holding the 5 bow up.
Manually lower and latch the folding top stowage cover.
Manually unfold the top and latch per normal procedure.

Manually Moving the Folding Top from the Up Position
Important: Allow the system a minimum of four minutes to bleed down pressure after the last cycle.
Manually release header latch per normal operation.
Manually lift front of roof off of the header and raise the #5 bow at the same time.
Manually release the Folding Top Cover latch using the emergency release cable.
Fold the roof down into the well.
Manually close and latch the folding top stowage cover.

Power Folding Top System Components
The power folding top system consists of the following components:
• Folding top control (FTC) module
• Body control module (BCM)
• Folding top control switch
• Serial data communication
• Folding top cover latch actuator
• Folding top cover pull down actuator
• Folding top pump motor with valve manifold
• Position switches and limit switches:
- Pin receiver switch
- Luggage barrier switch
- Folding top cover open switch
- Top open switch
- Top closed switch
- 5 bow raised switch
- 5 bow lowered switch
• Tonneau release relay
• TONNEAU PULL DOWN ACTUATOR Fuse 20 A
• TONNEAU RELEASE Fuse 10 A
• BATT 2 Fuse 40 A
• REAR FOG/ALDL TOP SW Fuse 10 A
• Folding top mechanical components:
- Folding top
- Folding top cover
- Folding top valve 1
- Folding top valve 2
- Folding top valve 3
- Hydraulic lines and cylinders

Folding Top Cover Latch Actuator
The power folding top system includes a folding top cover that is powered open and close by a hydraulic system that is controlled by the FTC module. A power unlatch motor is used to unlatch the folding top cover before the folding top control (FTC) module powers the top cover open. The folding top cover unlatching is requested by the FTC module via class 2 message, but is executed by the body control module (BCM). When requested, the BCM applies battery voltage through the folding top cover release relay control circuit to the tonneau release relay. The relay is energized and battery voltage is applied through the folding top cover release control circuit to the latch actuator. The actuator is energized and the latch releases the folding top cover.

The electronics on this are very complex ,

System Operation
Before any movement of the power folding top is allowed, the folding top control (FTC) module must be aware of the following conditions:
• Unlatch the header. The FTC module reads the pin receiver switch is Inactive.
• The windows must be normalized. Refer to Power Window Reinitialization.
• The ignition must be placed in Accessory or RUN.
• The transmission must be placed in PARK, or with manual transmission, the park brake must be applied.
• Trunk status must not be ajar.
• The luggage barrier must be in place.
• The pump motor temperature must be within the operating range.

After the last cycle of power folding top operation, allow the hydraulic system a minimum of 4 minutes to bleed down before attempting manual operation of the top.
Your best bet take and have it checked for DTC'S - diagnostic trouble codes .
DTC B3666 Rear Tonneau Position Error
DTC B3667 Tonneau Release Circuit
DTC B1011
DTC B1291
DTC B1420
DTC B3602
DTC B3666
DTC B3667
DTC B3670
DTC B3971

Whatever the issue you will be unable to get parts (and you will need them for this type of problem), sorry you got taken in when you bought this car by GM

I think the answer , cap vs tonneau, is a matter of functionality. It depends on how much storage capacity you are needing. With the cap, you have to climb into the back if items are stored towards the front of the bed. With the tonneau, you have easy access to the whole bed, but on the other hand, there is much more storage capacity with the cap. The Tonneau top is popular due to it's more sleek look. There are many designs for both tops.

there is no alternative but for you to rewind the cover by hand and then get the spring mechanism repaired /replaced .

Use a spray white grease and clean and lube all the moving parts of the top, all of them, then retry.

Happens alot. If you or someone pulls the interesting red strap under the rear seat, you have to do a reset. You have a small shot at just re-engaging the motors but will probably have to do a full reset. Take the back seat out and push lever back into the correct position. If you have a semi auto top (have to manually unlock top where it meets the windshield), lift the top back until you can pull up the back of the top to access tonnau cover. If it is a fully auto top, you have to pull out the cover at the very front of the headliner to access manual crank port. There should be a small allen wrench in the trunk tool box. You have to crank and crank and crank until the top is slightly open. You can then lift the back of the top to access tonneau cover. Both top types are the same from here on. Lift up on the tonneau cover and stow the top. Have a friend (or a heavy tool box) push down on the front part of the cover on the passenger side. You will hear a click. This will allow you to open the trunk. There are two motors located in the driver side rear quarter panel. You have to take out the covers hiding them. One motor is sort of in a horizontal placement under the pan where the top is stowed. Push up on this to re-engage. Other motor is in a vertivle orientation and at the driver side rear quater panel. You have to sort of grab the motor with both hands and pull it back into engangement with a gripping motion. Close the trunk. Push the switch to close the top (forward) and hold it down. Insert the key and turn it two clicks (accessory). After about 10 - 15 seconds you will hear the tonneau cover close and then open and the top closes. Let it cycle through and you are done. Hope that helps!

You could check the top latch position sensor and convertible top control module....if the motors are fried replacing them is very expensive....

There is a manual release behind the rear seat on the passenger side. Pulling it releases the tonneau motor plate away from the gears, allowing top to be raised and lowered manually.Once this release is used, the back bottom edge of the top will never seat against the tonneau again until the top is repaired.

YOU SHOULD HANG OUT AT YOUR LOCAL TIM HORTONS UNTIL SOMEONE WITH A SIMULAR TONNEAU COMES IN ...JUST OFFER TO BUY THE PERSON A COFFEE, IF THEY WILL SHOW YOU THEIR CLAMPS....TAKE A PICTURE OR 2 WITH YOUR CELL PHONE....PROBLEM SOLVED.

PLEASE RATE THIS,
ROB...

one side of mine wouldnt unlock i sprayed it with like a wd40 then if still wouldnt come off i removed it from the top and let the bar hang inside the truck then took a pair of pliers and gently pulled up on the release and without the cover bein still attached it had no pressure and came off a little easier