Auto Body Glass and Restraint Systems

Laminated safety glass is most commonly used for:

Side and rear windows Windshields, because it stays in one piece when cracked Sunroofs only Headlamps

Tempered safety glass is used for side and rear windows because it:

Can be cut and drilled easily after tempering Shatters into small, less injurious pieces when broken Is softer than laminated glass Never breaks under impact

The black ceramic band printed around many modern windshields is called the:

Weatherstrip Fritz or blackout band Crossmember Windshield header

The primary purpose of windshield urethane adhesive is to:

Provide appearance only Bond the glass to the body for structural strength and sealing Hold the rearview mirror in place Reduce radio interference

A heated rear window uses:

Hot coolant lines Fine resistance wires embedded in or applied to the glass Hot exhaust gas Engine oil heat exchangers

The term 'DW' in glass part numbers usually refers to:

Door window Windshield (division windshield designation) Deck lid glass Diesel window

When supplying replacement glass, the parts technician must verify:

Only that the glass is clear Correct tint, shaded band, defogger, antenna and sensor provisions That any windshield will fit any vehicle That the glass is tempered only

The term 'fixed glass' refers to:

Glass that is movable with a regulator Glass that is bonded or sealed in place and does not move Only laminated glass Only tempered glass

Movable door glass is supported and guided by:

Regulators, channels, run guides and weatherstrips Only rubber blocks Windshield urethane Leaf springs

The letters 'DOT' on automotive glass indicate:

Double outer tint Compliance with Department of Transportation safety standards Dealer option tint Defroster operating temperature

A windshield with an integrated rain sensor or camera requires:

Any generic replacement glass Correct mounting pad or bracket on the glass for the sensor or camera Removal of the sensor Use only of tempered glass

Supplemental restraint systems (SRS) are designed to:

Replace seat belts Work with seat belts to reduce injury during a collision Hold the hood closed Control engine speed

The main components of a driver frontal airbag module include:

Compressor, reservoir and hoses Inflator, housing, folded airbag cushion and cover Master cylinder and booster Radiator and fan

Airbag inflators are triggered by:

Headlamp switch Signals from crash sensors and the SRS control module Alternator output voltage Engine knock sensors

Seat belt pretensioners are designed to:

Loosen belts during a crash Tighten the belt webbing at the moment of impact to remove slack Release the buckle automatically in a collision Replace airbags in all vehicles

When servicing SRS components, it is important to:

Use test lights on airbag circuits Follow manufacturer procedures, disable the system and avoid static discharge Strike the module to verify operation Store airbags with connectors facing up

An illuminated airbag warning lamp indicates:

Normal operation of the SRS A fault has been detected in the SRS and the system may be disabled Low tire pressure High alternator output

A parts technician should NEVER:

Follow ILM and manufacturer guidelines Attempt to repair an airbag module or inflator Check part numbers in the catalogue Verify VIN details

Side curtain airbags are designed primarily to:

Protect lower legs Provide head protection in side impacts and rollovers Replace seat cushions Improve fuel economy

Child restraint anchorage systems such as LATCH/ISOFIX provide:

Electrical power to child seats Standardized attachment points for child safety seats Air conditioning ducts Only decorative trim

When ordering replacement seat belt assemblies, it is essential to match:

Colour only Configuration, anchorage points, buckle type and pretensioner features Any belt from another model Only webbing length

Glass run channels and weatherstrips are designed to:

Carry engine coolant Guide moving glass and seal against water and wind noise Support suspension components Mount the exhaust system

A windshield stress crack that starts at the edge without impact damage is often caused by:

Proper installation technique Body flex, poor fit or thermal stress Correct urethane cure time Only stone impact

The 'solar' designation on glass indicates:

No tint Glass designed to reduce heat transmission and UV radiation Glass only for solar-powered vehicles Tempered glass only

A 'privacy tint' rear glass is characterized by:

Clear glass only Darkened appearance that restricts visibility into the vehicle Reflective metallic coating on the inside Use only on windshields

Occupant classification systems (OCS) used with airbags can:

Measure fuel economy Detect passenger presence/weight to enable or disable airbag deployment Control alternator output Adjust wiper speed automatically

When replacing a windshield with an integral antenna, the technician must:

Ignore antenna connections Ensure the correct antenna-style glass is supplied and connected Cut the antenna off Use non-safety glass

A cracked windshield in the area in front of the driver is a safety concern because:

It improves visibility It can reduce driver vision and may weaken structural support for airbags It improves radio reception It lowers engine temperature

The ILM stresses that replacement glass and restraint components must:

Be selected based on lowest cost only Meet OEM or equivalent safety standards and correct application Come from any vehicle Be installed without following procedures

Seat belt webbing that is frayed, cut or melted should:

Be taped and reused Be replaced with the correct assembly Be cleaned and reinstalled Have only the buckle replaced

After a moderate to severe collision where airbags have deployed, recommended practice is to:

Reuse all SRS components Replace deployed airbags, pretensioners and any components specified by the manufacturer Disconnect the battery only Replace exterior trim only

A 'quarter glass' refers to:

Windshield glass Small fixed or movable glass located in the front or rear corner of the body side Back glass only Sunroof glass only