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Extrication from Cars during Road Traffic Accidents

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Here is a little extrication knowledge from Sweden. The Extrication from Cars during Road Traffic Accidents is a free, downloadable extrication book available online from Swedish Civil Contingencies Agency.  The book is packed full of useful information that rescuers can use, regardless of what part of the world you live in.  Take a look!  Special thanks to Jess Miller, the guy behind Firehouse Pride’s Emergency Response Guide for Electric, Hybrid and Hydrogen Vehicles for sending the link to us!

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Extrication from Cars during Road Traffic Accidents

First Look: The Hybrid Hook

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Now I’m sure we are never going to look like the guy in the picture on the left.  Lets hope not!  (Sorry Hazmat guys, I’m only an ops guy myself)  However, the picture brings up an interesting question, what’s a quick way to pull a victim away from a shock hazard that is caused by an EV or Hybrid?  An insulated hook? Forget about all the safety systems on these vehicles that automatically disconnect the HV and the view that you would never use a tool like this.  I agree with that 99.9%.  Yet, when we arrive on scene there is no telling what we are going to run into.

So take a look at the Hybrid Hook by Fire Hooks Unlimited.  The Hybrid Hook is made to remove persons grounded to Hybrid battery’s with as much as 600 volts DC. This insulated hook protects at a ratio of 25,000 volts per inch of fiberglass because of it’s unique design.  I sent an email to Fire Hooks Unlimited asking for a little more info so stay tuned.

 

I have seen Insulated Rescue Hooks like the one below in High Voltage (HV) labs in the auto industry that test HV batteries and cables.

Extrication_Insulated_Rescue_Hook_Safety_Firefighter

Tesla EV Safety Extrication Training Video

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Tesla Motors, Brock Archer, and Ron Moore put together a great training video that goes over the procedures for first responders on scene of a motor vehicle accident involving an electric vehicle (EV).  Make sure you also take note on some of the body structure fractures while being cut.  This video is packed full of useful information, make sure you take advantage of it!

A big thanks to Tesla Motors for putting the time and money into making this video.

Ron Moore Tesla Extrication

Tesla

Tesla Extrication Model S EV

Tesla Extrication Model S EV

 

 

How safe are AutoGas Propane Tanks?

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Just in case you were wondering just how safe the propane tanks used in cars, trucks, and bus the folks at Blue Bird posted a video where the Roush AutoGas tank is tested.

2012 GM Express-Savana CNG LPG Tank

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The General Motors Express-Savana CNG and LPG were touched on a few early posts, Alternative Fuel Vehicles, Extrication Knowledge at Home Depot, and Ford’s E Series ROUSH CleanTech liquid propane autogas fuel system . I ran across the information below on the different tank configurations that are available the the CNG and LPG vehicles.  Take a quick look and how the tank locations are similar, but still different.

If you want to look at a complete breakdown of the whole LPG system in the GM cutaway van, head over to TECHLINK.   There is almost enough information on that site to put together a great LPG system training class.

 

2012 GM Express-Savana LPG Tank Extrication

2012 GM Express-Savana LPG Tanks

2012 GM Express-Savana CNG Tank Extrication

2012 GM Express-Savana CNG Tanks


LPG Tanks Safety

LPG Tanks

CNG Tanks Safety

CNG Tanks

LPG Tank Components

LPG Tank Extrication Training Safety

The image above is the front tank of 3-tank system on a LPG vehicle.

1. LPG fuel bypass loop, mounted to a T-fitting on the return port of the fuel tank
2. Connection for the fuel return line from the distribution block
3. LPG cut-off solenoid, mounted to the outlet port of the fuel tank
4. Fuel level sensor
5. Liquid propane service valve and port
6. Manual shut-off for the liquid propane service valve (handle not included)
7. Spitter valve. Used for visual verification of 80% fill
8. LPG bypass loop solenoid and valve
9. Manual shut-off valve for LPG bypass loop
10. Fuel tank fill port and behind it, inside the tank is the 80% stop fill valve
11. Fuel tank electrical wiring harness pass-through for the internal fuel pump
12. Fuel tank access cover plate, for the internal components
13. Manual shut-off valve for the fuel return line

2013 Nissan Navara Body Structure

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I didn’t want to leave too many people out of the mix tonight, so here is a look at the 2013 Nissan Navara Body Structure for our readers down under in Australia.
2013 Nissan Navara Body Structure Extrication

2013 Nissan Navara Body Structure Extrication

2012 Opel Astra GTC Safety Structure

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Here is one for the extrication folks in Italy. Ecco uno per la gente estricazione in Italia.  The 2012 Opel Astra GTC Safety and Body Structure.

2012 Opel Astra GTC Safety Structure

Opel-Astra-GTC-Passive-Safety-Systems_Extrication

Kenworth Compressed Natural Gas Powered Mixer

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Over six years ago, Ozinga Ready Mix Concrete Inc. replaced the mixer trucks working from its Chinatown Plant near downtown Chicago with 13 compressed natural gas-powered Kenworth W900S mixers. The company has plans to install a time-fill fueling station at the Chinatown plant eventually as it replaces more of its diesel-powered mixers with new Kenworth CNG-powered units.

2012 Porsche Panamera S Hybrid

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No Emergency Response Guides (ERG) have been released for the 2012 Porsche Panamera S Hybrid. In the mean time, just use the images below to get a brief overview of the HV cables and battery locations.
2012 Porsche Panamera S Hybrid

2013 Fiat 500e Body Structure and Battery Location

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The tiny Fiat 500 now has an EV model set to hit the streets in the spring of 2013. The 2013 Fiat 500e is rated at 108 Highway MPGe Rating and Class-Leading 87 miles of driving range on a full charge.  The ERG is not out yet for the Fiat 500e, so keep your eye out. Make sure you also look at a post that covers the body structure of the Fiat 500.

2013 Fiat 500e EV Electric Extrication

2013 Fiat 500e EV Electric Extrication

Fiat Extrication

Quick Look: Porsche Panamera Sport Turismo

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Here is a quick look at a future Porsche, the Panamera Sport Turismo Hybrid.  Porsche is now giving their plug-in hybrids the designation “e-hybrid.”  This concept is a parallel hybrid, which means that the wheels can be driven by the electric motors, the gas engine, or both at the same time. When working together, the car produces 416 horsepower, enough to make it accelerate to 60 in under six seconds.  So look for this one on the road soon.

2012 Fisker Karma Body Structure and Battery

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Check out the Fisker Karma Body Structure and Battery location.  You can find a bunch of useful information in the Fisker Automotive Emergency Response Guide and take a quick look at the Rescue Card below.

Sixteen battery-powered Fisker Karma automobiles self-combusted in New Jersey during Hurricane Sandy, apparently in an attempt to generate heat to warm up the electricity-less victims of the town of Port Newark, New Jersey.  Surprised?  The salt water storm surge got into the batteries.

Also take note of the gear shifter that is a push button style located on the center console. 

2013 Chevrolet Sail Body Structure (India)

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Here is one for the rescuers in India.  The 2013 Chevrolet Sail Body Structure has a high strength steel body structure and dual airbags.

2013 Chevrolet SAIL Body Structure Extrication

2013 Chevrolet SAIL Body Structure Extrication

2013 Cadillac ATS Body Structure

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Check out the 2013 Cadillac ATS body structure! Cadillac engineers used Martensitic alloys and ultra-high strength steel, among other materials, help make ATS one of the lightest vehicles in the class. The ATS earned a 5-star overall crash test rating in the New Car Assessment Program run by the National Highway Traffic Safety Administration.  The b-pillar is made from Press Hardened/ Hot Stamped steel and Martensite.

2013 Cadillac ATS Body Structure Extrication

2013 Cadillac ATS Body Structure Extrication

Extrication

Cadillac Rear Seat Airbag

The rear seat has an optional airbag that deploys from the outer bolster.  The image below shows the concept and location of the airbag.  Just keep the location of this stored gas inflator in the back of your head and remember that airbags are now located throughout a vehicle, and not just in the common locations like the dash, pillars, front seats, and headliners.

Seat Stored Gas Inflator Safety Airbag Extrication

2013 Subaru Impreza Body Structure and Airbags

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Just like every Subaru, the 2013 Impreza has their Ring-Shaped Frame Reinforcement body structure with extensive use of high-tensile steel in body structure for strength and safety. All 2013 Impreza models feature a driver’s knee airbag on a roster of safety features that also includes standard front side pelvis/torso airbags and side curtain airbags that offer front and rear outboard seat coverage. The passenger-seat front airbag features a shell-type design with a center groove, thus exposing the passenger to less impact force upon deployment. The seatbelts have pretensioners and force limiters.

2013 Subaru Impreza Body Structure Airbag Safety Extrication

2013 Mitsubishi Lancer Body Structure

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Mitsubishi Extrication AirbagHere’s a quick look at the 2013 Mitsubishi Lancer body structure and airbag locations.  The Lancer has 7 airbag system dual front airbags, front seat-mounted side airbags and side air curtains. Plus a standard airbag to protect the driver’s knees.

2013 Mitsubishi Lancer Body Structure Extrication

Make sure you take note of the location of the roof/side airbag stored gas inflator in the C-Pillar.  The Crash Recovery System screenshot below clearly shows the hazard in a common cut location.

Mitsubishi Extrication Airbag Location CRS Moditech

Southern Extrication School

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Extrication SchoolAre you going to the Southern Extrication School?  Better yet, have you registered?  The Darlington County Extrication Team has put together a power packed two days with some big names in the fire service.  Check them out below!  I hope to so you there, I will be!

Complete information available at Extrication Process & Southeastern Extrication School website.

Speakers and Presentations

EMS Aspects of Extrication: Fundamentals and Focus – Rommie Duckworthconnects core principles of extrication with a foundation of field trauma care. Presented in a way that everyone can understand this program delivers patient size-up, incorporation of medical considerations in the extrication approach, detection and management of life threats, basic and advanced assessment, and concerns for special patient populations.

High-Energy, High-Impact Training – Tim Sendlbach provides an overview of the skills and personal characteristics necessary to develop and deliver a HIGH-IMPACT training program for your department.  Training is considered the backbone of every progressive fire department.

Alternative Fuel Heavy Truck/Bus for First Responders – Matt Stroud discusses the knowledge necessary to properly mitigate incidents involving commercial vehicles that utilize modern hybrid and alternative fuels including: LNG, CNG, Hybrid, EV, Hydrogen fuel cells.

Instructors and Sessions

Res-Q-Jack Stabilization University – Cris Pasto presents training on all aspects of res-q-jacks, the most complete line of versatile rescue struts & jacks available today. The practical exercises will cover wheel-resting, side-resting, roof-resting, and over-ride vehicle stabilization and lifts. Exercises will also cover advanced roll-over & over-ride extrication tactics.

Down in the Ditch Les Baker covers the topic of vehicles that come to rest in different positions in ditches of different sizes and configurations. Although this topic has received little attention over the years from the extrication community, local responders constantly find themselves facing these incidents. Instruction will cover scene assessment, set up, hazard control, and advanced techniques such as Hercules, Darlington Roll, tunneling, floorboard operations, etc.

Large Truck Tactics – Tim Rouse familiarizes the rescuers with different types, unique characteristics, and extrication techniques for dealing with large truck incidents. Students will be challenged with scenario based evolutions culminating in a mega scenario involving multiple entrapments designed to challenge even the most veteran responders.

Hand to Hand Combat – Jeff Pugh provides comprehensive training on the skills necessary to complete various tactics with minimal hand tools. Emphasis will be placed on tools such as hi-lift jacks, reciprocating saws, air chisels, etc.

Advanced Tactics – Randy Schmitz covers advanced tactics that are not used on a routine basis, but when needed are invaluable. These tactics include floor pushes, inverted patient removals, vehicle slides, tunneling, ram work, etc., all completed in a variety of scenarios. He also incorporates standard extrication best practices such as including scene safety, complex stabilization, and glass management into the training.

Man in Machine - Ed Henry discusses machine rescue calls such as a jumper impaled on a fence, a construction worker impaled on rebar, a pizza boy’s arm caught in the dough mixer, or the restaurant worker with his hand in the meat grinder. It’s technical rescue and it’s happening in every response area throughout the country. These types of calls will most likely require specialized training and equipment. This class covers NFPA 1670 – Standard for Technical Rescue, case histories, Crush Injury/Syndrome, tool and special equipment needs and rescue operations.

The registration fee for this school is $155 per person, which includes keynote presentations, one breakout session, all course materials, refreshment breaks, lunch on Sunday, Certificate of Completion, CEU Credits through Florence Darlington Technical College, a digital copy of all presentations for department and SES t-shirt. The breakout sessions are filling up fast and are filled on a first come first serve basis.

 

2013 Annual Extrication Training Events

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Firefighters and rescue personnel should consider attending one of the annual extrication seminars and training events around the United States, Canada, and even around the world that offer different methods of instruction and knowledge.  I believe training outside of your region and comfort zone will further your extrication knowledge and keep you are the leading edge.  In addition, you are able to bring back fresh ideas and tactics to your department.  Below is a list of extrication training seminars and events for 2013.

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Southeastern Extrication School

  • Date: February 16, 2013 8:00 AM
  • The 5th Annual Southeastern Extrication School will be held at the Southeastern Institute of Manufacturing and Technology.

KCFTOA Annual PXT 201/202/401 Extrication Academy

  • Date: March 13 – 15, 2013 0800-1700
  • The King County Fire Training Officers Association Present: 2013 Advanced Auto Extrication Featuring the Puyallup Extrication Team and their Unique Teaching Style! Minimal class time with Maximum hands-on training takes you through modern extrication practices using hydraulic and non-hydraulic rescue tools. This 3 day class (PXT 201/202/401)covers vehicle construction, stabilization, disentanglement, and tool knowledge. Scenario based evolutions give the students practical solutions for real world problems. In addition, MGSTECH will give their extremely popular Hybrid and Alternative Fuel vehicles class with up-to-date information to keep first responders abreast of new changes. Lunch is provided. Full PPE is required. Questions regarding the Academy Contact: Lt. Mark Seaver 206.818.2491 mseaver@rentonwa.gov

Heavy Metal Rescue

  • Date: April 5-7, 2013 Corning, NY
  • Last year, T&R Rescue Solutions brought in seven instructors from all over the United States were brought together to help firefighters understand the capabilities of towing and recovery trucks, equipment, techniques and operators as responders in motor vehicle accidents involving trucks, buses, and industrial equipment.

Corona Firefighters’ Auto Extrication Seminar

  • Date: April 12-14, 2013
  • The Corona Firefighters’ Auto Extrication Seminar trains Firefighters in the “art” of removing the vehicle from the patient. Their seminar is often referred to as “the best extrication training in the Western United States”.  For more info, contact Dan Fagan CFA Local 3757 d.fagan@cfa3757.org

Northern Ohio FOOLS Heavy Rescue 101

  • Date: April 19&20, 2013
  • There will be cars, buses, commercial, advanced techniques, newest equipment, Brotherhood, and a great time. Friday evening is typically a classroom session. Saturday is the hands on training part of Heavy Rescue 101.

Crash Course by Howell Rescue Systems

  • Date: May 4&5, 2013
  • Crash Course is a two-day extrication course. It is ONLY held once a year in the spring, and is the undisputed national leader in extrication training.  This course is an intense two-day, all hands-on class involving multiple extrication techniques

Bowling Green State University Heavy Rescue

  • Date: May 6-9, 2013 08:00-17:00
  • The first day of this class will be spent reviewing extrication principles, new vehicle technology, and commercial vehicle/bus familiarization. Days two, three, and four will be held at a commercial vehicle/ heavy equipment facility. You will be challenged to work individually and in teams to respond to increasingly complex rescue scenarios. These scenarios may include; car/truck underride, partially submerged vehicles, commercial truck, school bus, basic rope haul systems, heavy lifting, and torch use. Safety will be stressed at all times

Big Rig Hots

  • Date: June 19-22, 2013 Leduc County, Alberta Canada
  • This learning and hands on training symposium will provide an opportunity for firefighters from all over Canada to witness and participate in extremely complicated large vehicle rescue and extrications. Participants of this symposium will have the opportunity to be involved in four workshops involving complicated stabilization and extrication Techniques that demonstrate: “Cab Extrications”, “Under-Runs”, “Overturns”, and “Dealing with Cement Mixers”.

Crunch Time Extrication Symposium

  • Date: September 27-29 Roscoe,IL

RESCUE DAYS

  • Date: October 4-6, 2013 Geldern, Germany
  • RESCUE DAYS is the worldwide largest training event on technical rescue. WEBER HYDRAULIK initiated a seminar series more than 10 years ago and are continuing it with RESCUE DAYS as an annual highlight.  RESCUE DAYS should be on every firefighter’s bucket list!

So-Cal Auto-X Academy

  • Date: TBA

So-Cal Big Rig Rescue

  • Date: TBA
  • The second annual Southern California Big Rig Rescue Academy will be hosted by the Riverside County Fire Department at the Ben Clark Fire Training Center in Riverside, California. The 3 day So-Cal Big Rig Rescue Academy is packed full of the most current heavy lift and big rig extrication techniques.  The academy curriculum is taught by the industry’s leading instructors and delivered through 80% hands-on instruction.

Southern Region Advanced Auto Extrication Seminar

  • Date: TBA

 

 

Store Gas Inflators in the B-Pillar?

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You all know I love Moditech’s Crash Recovery System (CRS) and I say their Facebook page is a must follow!  Here’s a great example of why.  The guys at Moditech posted the image below on their Facebook post and asked their readers this question; “Rescuers, what do you notice on the screenshot of this Ford F150?” So what did you notice?  Many people responded with the usually hazards that CRS clearly locates in the diagraphs.  However, Moditech wanted to highlight the location of the stored gas inflator in the B-Post.  So you instructors out there, if you have ever told your students that they have never encountered a stored gas inflator in a vehicles B-post. That may not always true as you can see on our screenshot. Also peel the trim away!

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Moditech Crash Recovery System Extrication Ford

2013 Honda Fit Body Structure and Airbags

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Body Structure

2013 Honda Fit Body Structure

The 2013 Honda Fit utilizes Advanced Compatibility Engineering™ (ACE™) body-structure technology to enhance occupant protection and crash compatibility in frontal collisions. The ACE system actively channels frontal crash energy to both upper and lower structural elements, including the floor frame rails, side sills and A-pillars.  The ACE body structure routes crash forces around and away from the passenger compartment.

Airbags

2013 Honda Fit Airbag Extrication

The  Fit has six standard airbags.  The Fit has side curtain airbags and the passenger-side Occupant Position Detection System (OPDS) airbag that will not deploy if the system detects a smaller-sized or out-of-position occupant.  Both the driver and front passenger front airbags (SRS) incorporate dual-stage and multiple-threshold activation technology. The front row seats also have seat belt pretensioners and active head restraints.

Battery Crash Safety

The Electric Vehicle Fit is designed to protect the high-voltage parts within the vehicle in case of a severe crash. For example, the floor frame and crossmembers form a grid-like compartment to surround and protect the drive battery. The electrical flow is automatically disconnected if a severe crash occurs.

2013 Honda Fit HV Safety Extrication

Make sure you take a quick look through the 2013 Honda Fit Emergency Response Guide.

2013 Honda FIT EV HV Battery Extrication

 

2013 Audi A3 Body Structure

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In the  image below, the 2013 Audi A3 shows, in red, an extensive use of hot-formed steel – usually used in high stressed parts with strength in excess of 1000MPa.

2013 Nissan Leaf Cutaway

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The Nissan Leaf is not a new vehicle that firefighters will encounter on the road.  Below are a couple of new images that breakdown Nissan Leaf and gives a little more information.

Nissan Leaf Extrication

Nissan Leaf Extrication

Below are some posts on the Nissan Leaf:

Nissan Motors ERG

 

Glass management, GlasMasters, Packexe, and a New Tool

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Fire Rescue Magazine ExtricationHere is an article I wrote for Fire & Rescue magazine that is published by Hemming Fire.  You can get a free subscription that includes 4 issues of Fire & Rescue every year and free worldwide delivery.  You also read every issue online.

Glass management is a phrase being thrown around the fire service extrication circles. But why should you take the time to manage glass that you plan to break anyway? That’s why a line is drawn in the sand. Some believe that every piece of piece of non-laminated glass should be broken while others believe you manage the glass with products like Packexe SMASH and selectively break glass as needed. What school of thought do you belong to? Let’s take a look at a few options with glass management before you make up your mind which side is right or wrong because glass may end up being a tool as well.

Laminated Glass

GlasMaster Extrication Glass ManagementFirst off, automakers use two types of glass in vehicles, tempered and laminated glass. Tempered glass is commonly used on the side and rear car windows. Automakers are starting to include laminated side glass as a response to increasing demand for occupant ejection mitigation. Often the side laminated glass is stronger and more resistant to tearing and penetration than standard interlayers used in windshields today. Laminated side glass can be considered managed glass. Why managed? The glass is going to stay in its place. If the rescuers need to remove laminated side glass common glass tools can be used. The GlasMaster is the gold standard for windshield removal in my book. I understand some people say the reciprocating saw is faster. While it can be, you still need to install a blade and get a power source when the saw is not battery operated. The GlasMaster is ready to go and easy to control when you are cutting close to a patient like you may have to with a side window.

New Tool

The RHYNO Windshield Cutter a product developed by the We Cut Glass Company, yes kind of a direct and to the point company name. The RHYNO Windshield Cutter is a small handheld battery operated too that resembles an air shear cutter. I had the opportunity to test out a RHYNO Windshield Cutter fresh off the assembly line. First off, the tool is very lightweight, easy to deploy, and the cutter blades require very little clearance to effectively cut through the windshield. The RHYNO has a great nitch market in the making with automakers increasing the use of laminated side glass.

I had a chance to talk with the founder of the RHYNO Windshield Cutter Al Vangura Jr. and got a little background and current use of the tool. The cutter has been extremely popular with tactical response police units. I also asked and about a more powerful battery option for fire rescue. Vangura stated that it is being developed and is in the works. Firefighters often love to push a tool to the max and an increase in volts from 14.4 would really add additional speed to the tool.

Cold Weather

As cooler weather starts to invade the large majority of the United States, Europe, and Canada we need to adapt our extrication techniques. Cold weather brings a whole different aspect to glass management. For instance, normally glass would be managed by breaking the glass after the patient was covered. Open windows would leave the patient exposed to the elements. Packexe SMASH could be used to cover the glass, managing the glass. What about when all the glass in broken out during the crash and you arrive on scene to a patient exposed to the elements? Would a blanket provide enough protection from the elements?

Cold Weather Extrication Lift

Shock is something that rescuers need to worry during an extrication in cold weather. Keeping the patient warm is a simple step that can help with stabilizing the patient’s condition. Kevin Sehlmeyer from Rescue Resources, LLC told me about a “”Cold Weather Lift” that he teaches in his classes. In the picture below, notice that the driver side glass is still there along with the windshield. Packexe SMASH could be used to cover the rear window and the side windows to add strength. The last step in the “Cold Weather Lift” before lifting the dash is to break the rear glass and cut the C-Post. If the rear glass is covered with Packexe SMASH, the C-Post can be cut without removing the rear glass.

Critical Care Transport EMS ExtricationAlong with shock, trauma patients are predisposed to hypothermia. I would always protect the patient by covering with a blanket and a ready heat blanket if available. Another option is to use a heater to blow warm air into the passenger compartment. My department has a heater that can be used with the confined space blower on the heavy rescue. The transport vehicle should have the patient compartment heater to slow down heat loss. So why is all of this effort to shelter and protect the patient necessary? In the article “The chilling effect of hypothermia on trauma patients” Art Hsieh stated that 50 percent of trauma patients transported by EMS are unintentionally hypothermic by the time they reach the hospital. Remember, hypothermia is defined as a core body temperature below the 35C or 95F.  It never hurts to read up on scenarios that are uncommon or outside our comfort zone.

In Sum

Extrication, just like any discipline in the fire service should never rest on current techniques. Different products and techniques are always being tested and used in different methods to create a unique outcome. Keep an open mind and realize that glass management is more than just a catch phrase and is an important step in providing the best possible outcome for our patients. Regardless of who transports the patient, the extrication team plays a critical role in patient care!

Total Sidewall Removal Video

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Total Sidewall Removal - Brock Archer - NFPA 1670 - Operational LevelHere’s a great video from Brock Archer out on the West Coast walking us through the Total Sidewall Removal. This evolution has a bunch of different names floating around the fire service. For example, B-Pillar Blowout, Two Door Swing, Maxi Door, Rip and Blitz, 5th Door Conversion, Batwing, etc. The important thing to understand is the techniques and outcome are very similar.

As with an extrication technique, protecting the patient with soft and hard protection is important.  Also consider the weight of the doors that are removed.  Remember that stabilization is an ongoing task during vehicle extrication.

2013 Mercedes-Benz GL-Class SUV Body Structure

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Here’s a question for you, do know what “acoustic side windows” really means?  If your a regular reader of the blog, you should quickly translate acoustic front windscreen and optional acoustic side windows made with multilayer glass technology to provide great noise insulation to laminated side glass.  The image of the 2013 Mercedes-Benz GL below id from the Rescue card for passenger cars.  Where’s the battery?  How many batteries do you see? See both of them?  labeled 1 and 2.  Also take note of the suggested cut points.  Mercedes-Benz provides extrication cut points that are away from airbag inflators and often are a place on the vehicle where the body structure is weaker.

2013 Mercedes-Benz GL-Class Extrication Safety Airbag
Guidelines for rescue services are available in various languages as downloadable PDF files.  Mercedes-Benz updates the guides below so the information in it is current to assist rescuers during an extrication.  Here’s a great company drill or something to read through with your crew.

2013 Mercedes-Benz GL-Class Extrication Safety Airbag

2013 Mercedes-Benz GL-Class Extrication Body Structure

2013 Mercedes-Benz GL-Class Extrication Body Structure