Retractable Tonneau Cover FAQ

Clear answers for lock operation, installation, water resistance, load capacity, and common troubleshooting questions.

How do I unlock the cover using the lock cylinder?

Turn the lock cylinder to the horizontal position. Pull the cover firmly toward the tailgate, then press the lock cylinder to release the cover.

Lock cylinder release demonstration.
Watch: How to Open the Retractable Tonneau Cover
How do I lock and unlock the cover using the pull strap?
  1. Flick the pull strap to the right to unlock the cover.
  2. After pulling the cover closed, flick the strap to the left to lock it in place.
Why does the lock not respond when I pull the strap from side to side?

Shorten the pull strap slightly, then use a quick, firm flicking motion from side to side.

What bolt sizes fit the T-slots on the side rails?

The upper T-slots on both side rails accept M8 bolts. The lower and direct-mount connection points use M6 bolts.

Why does the cover bind or open by itself after it has been closed?

Check the spacing between the retractable cover and the side rails. Adjust the clearance to 7 mm (0.27 in.).

Side-rail clearance reference showing the required spacing
Side-rail clearance reference.
Cover opens by itself.
Cover binding or sticking.
What should I do if the cover interferes with the tailgate?

If the cover makes contact with the tailgate or prevents it from opening and closing properly:

  1. Raise the mounting brackets at the tailgate end.
  2. Shift the entire cover assembly slightly toward the cab.
Tailgate interference adjustment.
What should I check if the cover is leaking?
  1. Make sure the weather seal included in the hardware kit is installed at the cab end of the truck bed.
  2. Verify that the spacing between the side rails is correct.
  3. Confirm that both side rails sit flush against the top of the bed rails.
  4. Check that the weather seal near the canister panel fully overlaps the truck bed.
  5. If the leak continues, take clear photos showing where water is entering and contact customer support for further assistance.
How much weight can the cover support?
440–660 lb200–300 kg evenly distributed across the full surface.
Normal foot trafficThe current product guidance permits one person to walk normally on the cover.
Avoid point loadsSharp or narrow objects may damage the cover surface.
  • Evenly distributed load: The full surface can support 440–660 lb (200–300 kg) when the weight is spread evenly across the cover.
  • Standing or walking on the cover: The current product guidance states that the cover can support one person walking normally and that three to four people may stand along the rear edge at the same time.
  • Avoid concentrated loads: Do not apply force with sharp or pointed objects. Concentrated pressure is not included in the load ratings above.
What are the rubber bumpers in the hardware kit used for, and where do they go?

The rubber bumpers prevent the retractable cover from striking the canister. Install them in the orientation shown below. The red markings indicate the correct installation direction.

Rubber bumpers included in the hardware kit
Rubber bumpers included in the hardware kit.
Correct rubber bumper installation orientation
Correct installation orientation.
What open positions are available?
  • Covers for truck beds under 6 ft: Fully open or approximately one-third open.
  • Covers for truck beds 6.5 ft and longer: Fully open, approximately one-third open, or approximately two-thirds open.