Trailer & Vehicle Restraint Repair in Miami & Fort Lauderdale, FL
For trailer restraint and vehicle restraint repair in Miami & Fort Lauderdale, FL, call (385) 325-7138 about a dock lock that won't engage, won't release with a driver waiting, or is showing the wrong light to the bay. Give the facility address and the bay number.
Commercial loading docks across Miami-Dade, Broward and Palm Beach counties.
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 18, 2026.
What a restraint is, and what it isn't
A vehicle restraint — most people call it a dock lock — is a hook or arm mounted at the dock face. It grabs the trailer's rear impact guard, the horizontal steel bar under the back of the trailer, and holds the trailer against the dock while a forklift drives in and out of it. Some designs grip a wheel instead.
It is not a wheel chock. A chock is a block placed at a tire. A restraint is powered equipment with controls, lights and usually an interlock tied to the leveler or door.
The MHI/ANSI MH30 series treats vehicle restraints as their own equipment category, separate from dock leveling devices and portable devices. That's a useful reminder that a restraint fault is not a leveler fault and shouldn't be scoped like one.
- The hook or arm at the dock face → this page.
- The platform that bridges to the trailer → dock leveler repair.
- Chocks, dock lights, seals and bumpers → dock equipment repair.
Which type is at your dock?
| Type | How it engages | What you see at the bay | What commonly fails |
|---|---|---|---|
| Rotating-hook restraint | A hook rotates up and over the trailer's rear impact guard | Unit at the dock face, control box, red and green lights inside and out | Hook mechanism, drive, controls, lights, interlock |
| Vertical-barrier restraint | A barrier rises in front of the rear impact guard | Taller unit at the face, similar controls | Barrier travel, drive, sensing, controls |
| Wheel-based restraint | Grips or blocks a trailer wheel instead of the bar | Unit tracks along the drive approach | Travel mechanism, sensing, controls, debris |
| Manual chock and light system | Staff chock the wheel; lights are switched by hand | Light box and a switch, no powered unit | Lights, switch, wiring, missing chocks |
Rite-Hite's Dok-Lok line is a common name for this equipment and is used here as an identification example only — not a claim about your building, and not a dealer or authorized-service claim.
Call and tell us which bay.
Reading the lights, and what to report
Most restraint systems talk through a pair of light sets: one facing the driver outside, one facing the dock crew inside. The lights are the whole procedure for a lot of facilities, which is why a light that disagrees with the equipment is the most important thing on this page.
| What the bay or driver sees | What it's supposed to mean | What it may mean when there's a fault | How to report it |
|---|---|---|---|
| Green inside, red outside | Trailer restrained, dock crew may work, driver holds | Nothing wrong with the signal itself | — |
| Red inside, green outside | Not restrained, driver may pull, dock crew stays out | Normal between trailers | — |
| Lights disagree with the hook position | The signal and the equipment are out of sync | The worst failure mode on a dock. Report it as a fault, not a light problem | "Lights show green but the hook looks open" |
| No lights at all | Power, controls or wiring | Staff lose the only signal they have | "The light box is dead on bay 9" |
| Unit cycles but nothing changes | Mechanism, drive, sensing | The unit thinks it worked and it didn't | "It runs but the hook doesn't move" |
| Interlock stops the leveler or door | The system is doing what it was designed to do, or a fault is holding it | Not a nuisance to be worked around | "The leveler won't operate now" |
| Audible alarm | Model-specific — could be fault, could be normal for a cycle | Say what you heard, not what you think it means | "It's beeping and won't stop" |
Freeing a trailer that a restraint is holding is not a job for untrained staff. This page has no bypass, override or manual-release procedure, and it never will. If somebody worked around an interlock at your dock in the past, that's a finding for a qualified provider to look at — not a fix to repeat.
While the bay is down: keep people clear, don't force the unit, don't tell the driver to pull against it, and take the bay out of service the way your facility normally does.
If a trailer is stuck, say that first.
What we cover, and what we don't
Covered: vehicle and trailer restraints of every type above, their controls, sensing, bay communication lights and interlocks, at commercial loading docks.
Not covered:
- Anything on the trailer or the truck
- Repairs to your loading procedure — a provider fixes equipment, not your written process
- Residential garages, boat docks and boat lifts
- Truck and trailer cargo doors
- Structural concrete, pit and slab work
- Parts-only orders
What happens when you call
1. You describe it. Facility address, bay number, and whether the problem is engaging, releasing, or the lights.
2. We share the request. Uptime Dock & Door is an independent commercial service-request website for loading-dock and commercial door repair. Calls may be shared with an independent commercial dock-and-door repair company.
3. That company takes it from there. It confirms the address, scope, availability, price, scheduling, and its own contract, work and warranty terms.
Example wording (this is example wording, not a real job and not a script):
"The dock lock on bay 9 at our Pompano Beach warehouse won't release and the driver is waiting."
Useful on the call, if you happen to have it
- The bay number
- Whether a trailer is currently held
- What the lights are showing inside and out
- Whether the leveler or door is interlocked and now won't operate
- The restraint type or brand, only if you already know it
You can call without any of it. Don't go stand at the dock face to check a hook.
If you reach voicemail, leave the facility address, the door or dock number if known, what's wrong, and a callback number.
Ready when you are.
What changes the price
We can't quote a restraint repair from a web page. The price depends on the unit, whether the fault is mechanical or in the controls, parts, and access. Here's what to ask before you authorize work.
| What drives the cost | Why it moves the price | What to ask before you authorize work |
|---|---|---|
| Restraint type and model | Hook, barrier and wheel-based units share almost no parts | "What model is this, and what specifically failed?" |
| Mechanism or controls | A jammed hook and a failed sensor are different jobs | "Is this mechanical, electrical, or both?" |
| Lights and interlocks | Restoring the signal path is part of the repair, not an extra | "Do the lights and interlock come back working as designed?" |
| A bypassed interlock | If someone worked around it, restoring it is real work | "Was anything bypassed, and what does it take to put it back?" |
| Trailer mix at your site | A unit that misses some trailers may be a fit problem, not a fault | "Does this unit suit the trailers we actually receive?" |
| Parts availability | Older units can be slow to source | "Is the part on hand, and what's the lead time?" |
| Electrical work | New or altered wiring is a separate trade | "Who does the wiring, and is it in this price?" |
| Repair versus replace | Age, trailer mix and repeat faults all feed this | "What makes replacement the better answer here?" |
No local price range is published here.
Call and describe what the restraint is doing.
Planned restraint service
Restraints belong in a planned program, and they need to be named in it. A commercial door maintenance contract does not automatically include them.
Ask for the restraint scope in writing: which bays, which models, what gets checked, whether the lights and interlock are tested as a system rather than glanced at, and how a finding turns into an authorized repair. Ask where the record goes.
Nobody can set your interval from a web page. Cycle count, trailer mix, environment and manufacturer guidance feed it.
Standards that touch this equipment
| Source | What it covers |
|---|---|
| OSHA 29 CFR 1910.178 | Powered industrial trucks, including their use at docks and trailer movement concerns |
| OSHA 29 CFR 1910.26 | Dockboard duties, including preventing transport-vehicle movement, with specific exceptions |
| MHI/ANSI MH30 series | Identifies vehicle restraining devices as their own equipment category |
Whether a restraint, chocks, or both are required at your dock is a question for your own safety program and the applicable rules. Nobody here makes that call for you.
Where we cover
Facilities in Miami-Dade, Broward and Palm Beach counties can call. → Full Miami & Fort Lauderdale service area
Questions about trailer restraint repair
A trailer is stuck and the restraint won't release. What do we do right now?
Keep people clear of the dock face and the drive approach. Don't try to release it by hand, don't pry it, and don't have the driver pull against it. Take the bay out of service the way your facility normally does, tell the driver what's happening, and call with the bay number and the fact that a trailer is held. That last detail changes how the call is handled.
Is a restraint the same as a wheel chock?
No. A chock is a block at a tire. A restraint is powered equipment that grips the trailer's rear impact guard or a wheel, with controls, lights and often an interlock. Whether your dock needs one, the other, or both comes from your equipment and your own workplace requirements — not from a web page.
Our lights show green but the hook looks open. Is that a fault?
Report it as a fault. A signal that disagrees with the equipment is the failure mode that matters most on a dock, because the whole procedure depends on people trusting the light. Stop using that bay and describe exactly what the inside and outside lights are showing.
Can a restraint be repaired, or does it get replaced?
Both happen. A qualified provider looks at the mechanism, the controls, the condition of the unit and whether it still suits the trailers you receive. If it holds most trailers but misses some, that may be a fit problem rather than a broken part — ask which one you're looking at before you authorize anything.
Call about the restraint at your dock
Tell us where the facility is, which bay, and whether a trailer is held.
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.
More: All Miami & Fort Lauderdale services · National loading dock repair · How Uptime works
Sources
- OSHA 29 CFR 1910.178, powered industrial trucks — checked September 18, 2026
- OSHA 29 CFR 1910.26, dockboards — checked September 18, 2026
- MHI — loading dock equipment manufacturers, MH30 series — checked September 18, 2026