Trailer Restraint & Dock Lock Repair in Las Vegas, NV
For trailer restraint repair and dock lock repair in Las Vegas, NV, call (385) 325-7138 about a restraint that won't engage, won't release a trailer, or whose lights have stopped changing. Distribution centers, warehouses and cold-storage docks across Clark County. Say the bay number if known and what the restraint and its lights are doing.
Call to describe the problem—if the door is stuck open or the dock is down, say so first.
Independent service-request website. Calls may be shared with an independent commercial dock-and-door repair company. That provider confirms availability, scope, pricing, and service terms.
Facts checked September 19, 2026.
Restraint, chock or leveler?
A trailer restraint — also called a vehicle restraint, truck restraint or dock lock — is a device mounted at the dock that grabs the trailer and holds it while it is loaded. A wheel chock is a wedge someone places by hand. A dock leveler is the adjustable platform that bridges to the trailer. This page is the restraint and the lights and controls that go with it. If the leveler will not raise, that is dock leveler repair. If the seal, bumper or dock light is the problem, that is dock equipment repair. A restraint that is interlocked with the leveler or the door can make either one refuse to move, so if a bay has gone dead for no obvious reason, the restraint is worth mentioning.
The restraint types you'll see
You do not need to know which one you have. If you can tell, say so. The categories below match how the manufacturers themselves sort them — rotating hook, vertical barrier and wheel-based, plus stabilizing designs (Rite-Hite vehicle restraints).
| Type | How to recognize it | What it grips | Typical failure |
|---|---|---|---|
| Rotating hook restraint | A hook on a carriage at the base of the dock that rises and rotates | The trailer's rear impact guard — the horizontal bar under the back of the trailer, often called the RIG or ICC bar | Hook will not rise, will not rotate, will not release; carriage damaged by impact |
| Vertical barrier restraint | An arm that rises straight up in front of the rear impact guard | The rear impact guard | Barrier stuck up or down; controls |
| Wheel-based restraint | A device in the driveway that swings or slides against the trailer wheel | The trailer's wheel — used where trailers have liftgates or odd rear bars | Will not deploy, will not retract, hit by a trailer |
| Stabilizing restraint | A hook design that also limits the trailer's up-and-down movement | The rear impact guard | Same as rotating hook |
| Manual restraint | A bar or hook set by hand | The rear impact guard | Bent, lost, will not latch |
The industry standard is ANSI MH30.3-2022, "Performance and Testing of Vehicle Restraining Devices," published through MHI's Loading Dock Equipment Manufacturers group (ANSI Webstore). Trailer creep is the trailer inching away from the dock as the forklift goes in and out. Unscheduled departure is a driver pulling away while someone is still inside. The restraint exists to stop both.
About brand names. Rite-Hite's Dok-Lok is the name many people use for every restraint, the way "Kleenex" gets used for tissue. Names you may see on the unit or its control box include Rite-Hite, Kelley, Serco, Blue Giant, Nordock and Pentalift. Identification examples only — not proof of what is installed, of authorized service, or of any connection to Uptime. Read a tag from where you already are. Never go under a trailer or into the driveway to look for one.
The lights and interlocks are part of the system
Restraints can have light communication systems and interlocked controls with the leveler and the door (Rite-Hite loading dock controls). In normal operation, inside green and outside red indicate the loading state; inside red and outside green indicate the departure state. Follow the unit’s posted signals and facility procedure: a green light alone does not prove the trailer is secured. Interlocks enforce the sequence configured for that bay, which can differ between an open-door and a closed-door operation.
The light is the system telling you its state. A light that will not change, or that disagrees with what the restraint is visibly doing, is a fault to report. It is not a nuisance to work around. This page does not publish bypass procedures, and Uptime will not describe how to defeat a restraint or an interlock. A restraint that has been bypassed or damaged should be reported as a fault, because the next person it fails may be on a forklift.
What you're seeing, and what to report
| What you can see | What a qualified provider checks | Why the difference matters | How to say it on the call |
|---|---|---|---|
| Restraint will not engage | Mechanism, hydraulics or drive, controls, whether the trailer's bar is within reach | Some misses are the trailer, some are the restraint | "The dock lock won't grab the trailer at bay 7." |
| Restraint will not release | Mechanism, controls, hydraulic pressure, damage to the hook or carriage | A trailer that cannot leave stops the whole door | "The dock lock won't let go of the trailer at bay 7." |
| Engages, but the inside light stays red | Sensors, controls, interlock wiring | The system does not believe the trailer is held | "It's on the bar but the light never goes green." |
| Light shows green with no restraint engaged | Sensors, controls, the whole interlock chain | The signal can send someone into a trailer that is not held. Take the bay out of use through your own process and report it now | "The inside light is green but nothing's holding the trailer." |
| Outside light wrong or dead | Outside light head, wiring, controls | The driver is getting the wrong signal | "The outside light is dead at bay 2." |
| Restraint damaged by repeated trailer contact | Carriage, hook, mounting, driveway | Impact damage adds up and the mounting can fail | "Trailers keep hitting the restraint at bay 5 and it's bent." |
| Controls dead | Power, control panel, interlock inputs | An interlock may be holding it dead on purpose | "The control box does nothing." |
| Restraint fires but misses the trailer's bar | Trailer type, bar height, restraint reach, liftgate | Some trailers need a wheel-based restraint | "It comes up but the hook misses the bar on some trailers." |
| Interlock will not let the leveler or door operate | Restraint state, interlock wiring, the leveler or door's own controls | The restraint state may be blocking the sequence | "Bay 9's leveler won't move and the restraint light is red." |
| Same fault came back | Service history, root cause, impact pattern | Recurrence starts the repair-or-replace conversation | "This is the second time this month it's stuck." |
Say what you see. Do not touch the restraint, the trailer or the driveway.
What this covers — and what it doesn't
Covered. Restraint mechanisms, hooks, barriers and carriages. Drives and hydraulics. Control boxes. Inside and outside communication lights. Interlock wiring to the leveler and door. Mounting. Wheel-based restraints in the driveway.
Not covered. The trailer itself, its rear impact guard or its cargo doors. Wheel chocks as consumables — your facility supplies those, and the federal rule on them is quoted below. Any request to bypass, disable or override a restraint or interlock. Levelers, seals and doors have their own pages, linked above.
What happens when you call
- You describe it. Facility address, bay number if known, what the restraint is doing and what the lights show. Whether a trailer is being held right now.
- Calls may be shared with an independent repair company. That company handles the service request.
- That company confirms everything that matters. Access, scope, availability, price, scheduling, and its own contract and warranty terms.
Example wording, not a real job: "The dock lock at bay 7 won't release the trailer at our facility in Las Vegas, and I can give you the address."
How it works and about Uptime explain the request path. Uptime's national reference on vehicle restraints versus wheel chocks explains the two approaches side by side.
Call and describe the restraint problem.
Useful on the call, but never required
- Restraint type, if you know it — hook, barrier, or wheel-based
- Whether a trailer is currently held
- What the inside and outside lights are doing
- Whether the leveler or door is interlocked to it
- Whether the same trailers or trailer types cause the problem
You can call with none of it.
If you reach voicemail, leave the facility address, the door or dock number if known, what's wrong, and a callback number.
What changes the price — and what we honestly can't tell you
We can't quote your exact restraint repair from a web page. The price depends on the restraint, the fault, parts, and access. Here's what to ask before you authorize work.
| What actually moves the price | Why | What to ask before you approve it |
|---|---|---|
| Service-call charge | A trip and assessment fee may apply | "What is the service-call charge, and does it apply if I don't approve the work?" |
| Mechanism vs. controls vs. lights | A light head and a carriage are different repair scopes | "Is this the mechanism, the controls, or the lights?" |
| Hydraulic vs. electric drive | Different parts, different labor | "Which drive is this, and what's being replaced?" |
| Impact damage to the mounting | Re-anchoring into damaged concrete is a bigger job | "Is the mounting sound?" |
| Number of bays | The bay count changes the total scope | "Is there a per-bay price if we do several?" |
| Re-proving the interlock | After a repair, the interlock has to be shown to work | "Is interlock testing included?" |
| A trailer held at the bay | A trailer that cannot leave changes the urgency and the access | "There's a trailer stuck on it now — does that change the visit?" |
Ask which kind of price you are being given — a call-out fee, a starting price, a scoped fixed price, an estimate, or a final quote — and what it includes.
Call and ask these questions.
Repair the restraint or replace it?
A repair makes sense when the mechanism, mounting and controls can be restored for the trailers using the bay. Repeated impact damage, unavailable parts or a restraint that cannot engage your trailer mix are reasons to compare replacement; ask for both scopes and how the lights and interlocks will be tested afterward.
Nevada and Clark County rules that apply
The license. A-14 includes industrial machinery installation (NAC 624.150); C-33 also covers permanently affixed industrial machinery (NAC 624.500). Ask which classification covers the proposed restraint work. New or altered electrical circuits are a separate C-2 scope question (NAC 624.200). Check the Nevada State Contractors Board license search, ask for the pocket card, and remember that the Board says contracts over the monetary limit are invalid (NSCB). Clark County’s contractor-issued permit requirements also require an active Multi-Jurisdictional Business License (search). The provider and the Board confirm which class covers a given job.
Your own duties. The federal rule on securing trailers does not go away because a restraint is broken or because one is installed. 29 CFR 1910.178(k)(1): "The brakes of highway trucks shall be set and wheel chocks placed under the rear wheels to prevent the trucks from rolling while they are boarded with powered industrial trucks." Under (k)(3), "Fixed jacks may be necessary to support a semitrailer and prevent upending during the loading or unloading when the trailer is not coupled to a tractor." And (m)(7): "Brakes shall be set and wheel blocks shall be in place to prevent movement of trucks, trailers, or railroad cars while loading or unloading." Chocks and jacks are named in the rule itself; installing a restraint is not a blanket exemption. Your safety lead must confirm the legally acceptable securing method for the trailer and site while the restraint is out of service.
Permits. Ask whether the proposed repair, new anchoring or electrical work needs a permit. The Las Vegas homepage rulebook lists all six permit authorities, and the provider and the issuing office confirm what applies.
Where this covers
Commercial facilities across Clark County — Las Vegas, North Las Vegas, Henderson, Paradise, Spring Valley, Enterprise, Sunrise Manor, Boulder City, Mesquite and the outlying areas. The independent company confirms availability for the facility address. See the full Las Vegas service area. For a facility there, see the North Las Vegas dock and door repair page.
Questions facility managers ask
The restraint won't let the trailer go. What do we do right now? Do not force it, do not send the driver to pull against it, and do not try to release it by hand. Keep people clear, tell the driver to stay put, and call with the bay number and "the restraint won't release." The provider decides how it gets released safely.
Our light shows green but nothing is engaged. Is that urgent? Yes. A false green light can send loaders into a trailer that is not secured. Take the bay out of use through your own process, keep people clear, and report it now.
Do you work on restraints you didn't install? Ask the independent company to confirm service for that make and model, regardless of who installed it. Say the brand if you know it.
Are wheel chocks still needed if we have restraints? Do not assume a restraint removes a chocking duty. The federal rule names chocks, brakes and jacks; your safety lead must confirm the acceptable method for that trailer, equipment and operation. Uptime's reference on vehicle restraints versus wheel chocks lays the two out side by side.
Call about your dock restraint in Las Vegas
Call (385) 325-7138 and say the bay number if known, what the restraint is doing, and whether a trailer is held right now.
Call to describe the problem—if the door is stuck open or the dock is down, say so first.
Independent service-request website. Calls may be shared with an independent commercial dock-and-door repair company. That provider confirms availability, scope, pricing, and service terms.
Las Vegas dock and door repair · All local services · Las Vegas service area · Phone and call details
Sources
Checked September 19, 2026.
- ANSI MH30.3-2022, Performance and Testing of Vehicle Restraining Devices (ANSI Webstore)
- 29 CFR 1910.178, Powered industrial trucks (eCFR)
- Nevada Administrative Code Chapter 624, §§ 624.150, 624.200 and 624.500
- Nevada State Contractors Board: working with contractors · license search
- Clark County Multi-Jurisdictional Business License search
- Rite-Hite vehicle restraint categories (manufacturer)
- Rite-Hite light communication · interlock sequences
- Clark County permit licensing requirements · Do I need a permit?