Quick Answer
If your truck breaks down, remember: get safe, get seen, get help.
The 30-minute plan:
- Pull over safe and mark the scene with triangles
- Do quick safety checks (only if safe to do so)
- TACH members: Open the app and tap Get Emergency Help (24/7 nationwide)
- Protect the load and document everything
Not a member yet? Join TACH to get 24/7 Emergency Roadside Assistance nationwide, plus instant access to vetted service providers.
Minute-by-Minute Playbook (first 30 minutes)
Minutes 0–5: Get safe
Priority one is your safety. Follow these steps immediately:
1. Signal and pull over as far right as possible (or take the next exit)
- Get completely off the travel lane
- Look for wide shoulders, rest areas, or exit ramps
- Avoid curves and hills if possible
2. Hazards on immediately
- Make yourself visible to approaching traffic
3. Set warning triangles
- First triangle: ~10 feet behind the trailer
- Second triangle: ~100 feet behind
- Third triangle: ~200 feet behind
- For curves/hills: place farther back (up to 500 feet)
4. Safety vest on
- Required by FMCSA when outside the cab on roadways
- High-visibility yellow or orange
5. Stay off live lanes
- Never stand between your truck and traffic
- If the shoulder is too narrow, stay in the cab
Minutes 5–10: Quick checks (only if it's safe)
Only perform these checks if:
- You're on a wide, safe shoulder
- Traffic is clear and you have space
- No fire, fuel spills, or heavy smoke
Quick diagnostic checks:
Look & Listen:
- Leaks? (fuel, coolant, oil, air)
- Smoke? (color: white/blue/black?)
- Burning smell?
- Unusual sounds?
Air system:
- Low-air warnings on dash?
- Hissing air leaks?
- Brake system pressure
Engine compartment (if hood safe to open):
- Belts: broken, loose, or off pulleys?
- Hoses: burst or disconnected?
- Battery cables: loose or corroded?
Dash lights & codes:
- Check engine light on?
- Any fault codes displayed?
- Take photos of the dash
Reefer units:
- Confirm setpoint temperature
- Check box temperature
- Keep doors closed to maintain temp
⚠️ STOP and call 911 immediately if you see:
- Fire or flames
- Major fuel spill
- Heavy smoke
- Any immediate danger
Minutes 10–20: Get help
For TACH members (fastest response):
Open the TACH app → Tap Get Emergency Help
You'll reach the TACH-dedicated FleetNet line - available 24/7 nationwide with vetted providers who specialize in commercial trucks.
Have this information ready:
📍 Location:
- Highway number and direction (I-80 eastbound)
- Mile marker or exit number
- Nearest city/landmark
- GPS coordinates if available
🚛 Unit details:
- Tractor ID or truck number
- Trailer number
- Last 6 digits of VIN
- Tire size (if tire-related)
🔧 Symptoms & codes:
- What happened? (sudden or gradual?)
- What you saw, heard, or smelled
- Any fault codes or warning lights
- Recent repairs or issues
📦 Load information:
- Cargo type
- Weight (gross and cargo)
- Temperature requirements (reefer)
- Delivery deadline
⚠️ Safety status:
- Shoulder condition (wide/narrow/none)
- Triangles placed?
- Any immediate hazards?
- Injuries?
Simple call script:
"I'm [Name], MC#[######]. I'm on I-## [direction] at mile marker ###, on the shoulder. Issue: [coolant hose burst / steer tire flat / engine won't start]. No injuries. Triangles are up. I need [mobile mechanic / tire service / tow]."
Response time expectations:
- Urban areas: 45-90 minutes typically
- Rural areas: 90-180 minutes
- Remote locations: may require special dispatch
Minutes 20–30: Protect the load & document
Documentation (crucial for insurance and records):
📸 Take photos:
- Overview of the scene (truck position, triangles visible)
- Dash gauges and warning lights
- Fault codes on display
- Any visible damage or leaks
- License plate and unit numbers
📝 Note details:
- Exact time of breakdown
- Time you called for help
- Service provider name and ETA
- Case/ticket number
📱 Update all parties:
Dispatcher/broker/shipper:
"Truck disabled at [location]. Service ETA [time]. Will update after repair estimate or if tow needed."
ELD/logbook:
- Add breakdown remark with time and location
- This protects your HOS compliance
Cargo protection:
Reefer loads:
- Confirm reefer is running and at setpoint
- Check fuel level on reefer unit
- Keep doors closed to maintain temperature
- Monitor box temp every 15-30 minutes
- Document temps with timestamps
Dry van:
- Check that doors are locked and sealed
- Verify seal numbers match paperwork
- Stay near the load (but in a safe position)
Flatbed:
- Check straps/chains are still secure
- Watch for shifting if waiting extended time
What NOT to Do
Never compromise your safety:
- Don't stand in traffic - Stay behind the guard rail or in the cab
- Don't stand between tractor and trailer - Especially with traffic passing
- Don't crawl under the truck on a narrow shoulder or active roadway
- Don't open a hot radiator cap - Wait for it to cool or let the mechanic handle it
- Don't keep rolling on:
- Damaged or flat tire (especially steer)
- Low oil pressure warning
- High coolant temp warning
- Air brake system failure
- Don't leave the scene for extended periods - Stay with your truck and load
- Don't block traffic to do repairs - Safety first, always
Glovebox Essentials
Keep these items in your cab always:
Safety equipment:
- ✓ Safety vest (high-vis yellow/orange)
- ✓ Warning triangles (3 minimum)
- ✓ Flashlight (with fresh batteries)
- ✓ Reflective flares or LED beacons
Basic tools & supplies:
- ✓ Spare fuses (assorted sizes)
- ✓ Basic tool set (wrenches, screwdrivers, pliers)
- ✓ Tire pressure gauge
- ✓ Electrical tape and zip ties
- ✓ Work gloves
Electronics:
- ✓ Phone charger (car adapter + cable)
- ✓ Backup battery pack (charged)
- ✓ TACH app installed and logged in
Documentation:
- ✓ Insurance card
- ✓ Registration
- ✓ Recent inspection reports
- ✓ Emergency contact numbers
- ✓ Service provider info (for non-TACH members)
Comfort items (for long waits):
- ✓ Water and snacks
- ✓ Weather-appropriate clothing
- ✓ Blanket
When to ask for a tow (not roadside repair)
Call for a tow truck immediately if:
Safety issues:
- Steer tire failure or shredded casing
- Unsafe shoulder where roadside work puts anyone at risk
- Heavy traffic with no safe workspace
- Darkness with poor visibility
Major mechanical failures:
- Major coolant loss (cracked block, burst hose you can't cap)
- Severe oil leak or loss
- Air brake system failure you can't safely isolate
- Transmission failure (won't engage any gear)
- Drive shaft or U-joint failure
Electrical/starting issues:
- No-start condition after quick checks (loose cables, fuse)
- Electrical fire damage
- Complete electrical failure
Collision or major damage:
- Accident damage requiring inspection
- Frame or suspension damage
- Any damage affecting driveability or safety
When in doubt, tow it out. It's cheaper and safer than making a breakdown worse or risking a secondary incident.
With TACH, simply tap "Get Emergency Help"
24/7 coverage, nationwide
- Emergency help available any time, any day
- Coverage across all 50 states
- No need to search for local providers in the middle of the night
- Get wrecker services at your location
Vetted providers who know trucks
- Pre-screened mobile mechanics and tire services
- Commercial truck specialists, not passenger car shops
- Understand time sensitivity and load protection
Faster dispatch, less hassle
- One tap in the app connects you to dedicated FleetNet line
- No back-and-forth with multiple vendors
- Cleaner paperwork and billing
- Real-time updates on ETA
Cost management
- Transparent pricing through approved network
- No surprise markups or after-hours premiums
- Expense tracking integrates with your TACH account
Want 24/7 emergency roadside assistance anywhere in the U.S.? Join TACH and get instant access to Emergency Help in the app - plus Expense Management, a Business Account², and Cash Advances.
Frequently Asked Questions
Who do I call first when I break down?
If there's immediate danger (fire, crash, major spill, injuries), call 911 first.
If it's safe and you're a TACH member: Open the TACH app and tap Get Emergency Help for 24/7 nationwide support through our dedicated FleetNet line.
If you're not a TACH member: Call your company's roadside provider or another national service directly.
Should I try to fix it myself?
Only attempt simple, safe checks:
- Loose battery cable you can tighten
- Blown fuse you can replace
- Obviously disconnected hose you can reconnect
Don't attempt if:
- The shoulder is narrow or unsafe
- You don't have the right tools
- You're unsure what's wrong
- It requires getting under the truck
- There's any safety risk
Professional mechanics have the tools, parts, and expertise to do it faster and safer.
What information speeds up the repair?
The 5 essentials:
- Exact location - highway, mile marker, direction, nearest exit
- Unit details - tractor/trailer ID, last 6 of VIN, tire sizes
- Symptoms & codes - what happened, warning lights, fault codes
- Load info - type, weight, temp requirements, delivery deadline
- Photos - dash, codes, visible issues
Having this ready when you call cuts dispatch time significantly.
How do I keep my load safe during a breakdown?
For reefer loads:
- Keep doors closed at all times
- Verify reefer is running and at setpoint
- Check reefer fuel level
- Monitor and document box temp every 15-30 minutes
- If reefer fails, notify shipper immediately
For all loads:
- Stay within sight of your truck (when safe)
- Verify seals/locks are intact
- Don't let anyone access the cargo without authorization
- Document any temperature or time violations
How can I avoid future breakdowns?
Prevention is 90% cheaper than emergency repairs:
- Follow your PM schedule religiously - don't skip services
- Do real pre-trip inspections - not just checking boxes
- Watch tire tread and pressure - check weekly minimum
- Monitor fluid levels - oil, coolant, DEF before every trip
- Fix small issues immediately - don't let them become big problems
- Listen to your truck - unusual sounds, smells, or behaviors
- Keep maintenance records - pattern recognition helps
- Use TACH Expense Management - track maintenance costs and identify patterns
Get TACH's PM Inspection Checklist to stay ahead of breakdowns.
The Bottom Line
When you break down, the first 30 minutes determine everything: your safety, downtime, and costs.
The winning playbook:
- Get safe - triangles, vest, shoulders
- Quick checks - only if safe
- Get help fast - TACH app for 24/7 support
- Protect the load - temp, security, documentation
- Stay safe - never risk injury for speed
TACH members save time and money with one-tap access to 24/7 nationwide emergency roadside assistance, vetted providers, and faster dispatch.
Ready to upgrade your breakdown response? Join TACH today and get instant access to Emergency Help - plus Expense Management, Business Account², and Cash Advances to handle any situation on the road.