Gm Intermittent Direct Ignition Operation

The Next Defect Frontier: Electronic Recalls

In October 2010, Nissan recalled 2004-2006 Armada, Titan, Infiniti QX56 and model year 2005-2006 Frontier, Pathfinder and Xterra vehicles, because of a compromised engine control module relay within the intelligent power distribution module. The automaker told NHTSA that a diode in the relay could allow silicon vapors to form, causing silicon oxide to develop on the ECM relay and arcing. This, Nissan said, could lead to a sudden engine stall. In April 2011, Toyota recalled 307,848 2008 Highlander and Highlander Hybrid and 2007-2008 Rav4 vehicles because simultaneous faults in two roll-angle sensors in the curtain shield airbag assembly could cause inadvertent deployment of the side-air curtain and activation of the seat belt pretensioners. The problem first presented itself in October 2007 but Toyota, which has argued that dual simultaneous faults do not occur in the real world in refuting an electronic cause of unintended acceleration, similarly posited that dual simultaneous faults were highly unlikely to trigger inadvertent deployments. When complaints continued, Toyota concluded that the likelihood of a double fault triggering a deployment was much higher than anticipated and launched a recall. As automakers continue to migrate mechanically-based components to electronic systems, so do the types of recall campaigns they launch to correct defects. According to a Siemens VDO Automotive report estimate in 2004, electronics was the fastest growing sector in the industry with the total value of such systems expected to reach $3.8 billion in 2010. In the last 12 months, SRS examined the prevalence of electronic recalls, reviewing 722 recall campaigns since July 2010 to determine how many involve defects associated with electronic systems. Ultimately, defining electronics recalls is challenging – they range from severed cables and fluid leaks into electronic components that result in short circuits to hardware failures to complex software algorithm issues. When defined broadly, electronics recalls comprised more than a quarter of recalls submitted to NHTSA over the last year. Of those, 24 recall campaigns address software defects. As SRS has previously reported, automakers have known for at least a decade that electronics have their advantages – and their reliability headaches. At a 2004 industry conference, Mercedes Benz’s vice president for electrical and electronics and chassis development.

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Chevrolet Equinox is a midsize crossover sport utility vehicle designed and engineered by Chevrolet Company. It is based on GM’s Theta unibody platform and is manufactured at CAMI Automotive plant in Ingersoll, Ontario, Canada and introduced in 2004.

The Equinox is the first crossover sport utility vehicle marketed by GM as compact SUV. It is mechanically similar to GMC Terrain, 2007 Suzuki XL7, Saturn Vue and Pontiac Torrent. As opposed to truck based Chevrolet TrailBlazer and Chevrolet Tahoe, the Equinox is not engineered for severe off-roading.

It initially featured basic equipments including the bright chrome door handles, 17 inch chrome clad aluminium wheels, heated front seats, bright chrome luggage rack side rail inserts, leather seating inserts, Pioneer premium seven-speaker audio system, AM/FM stereo with MP3/CD playback capability and six-disc in-dash CD changer and head curtain side impact airbags.

Reviews on 2009 chevrolet equinox say that it is a competitively priced midsize sport utility vehicle that offers exceptional versatility.

It offers five-passenger seating capacity and comes in four trim levels such as base LS, midlevel LT, fully loaded LTZ and performance oriented Sport.

Standard features on LS include 16 inch aluminium wheels, roof rack, air conditioning, tilt only steering wheel, flat folding front passenger sear, cruise control, full power accessories, automatic headlights, driver information center and CD player with satellite radio and auxiliary input jack. The Sport trim level gets larger V6 engine, 18 inch aluminium wheels, sport tuned suspension, special exterior trim, sport bolstered front seats and unique instrumentation.

Powering the Sport trim level is a brawny 3.6 liter V6 engine, which is good for producing 264 horsepower and 250 pound feet of torque, while the base LS, LTZ and LT are equipped with 3.4 liter V6 engine, which is good for pumping out 185 horsepower and All models go from zero to sixty mph in the time range of 8.7 seconds.

Standard equipments are Rear defogger, Variable intermittent wipers, Roof rack, Intermittent rear wiper, Rear liftgate door, Fixed liftgate window, Cruise control, 1 one-touch power windows, Front and rear cupholders, Front console with storage, Electric speed proportional power steering, Front and rear door pockets, Tachometer, Front and rear reading lights, MacPherson strut front suspension, Trip computer, Four-wheel independent suspension, Multi-link rear suspension, Front and rear head airbags, 4-wheel ABS, Remote anti-theft alarm system, Child seat anchors, Engine immobilizer, Daytime running lights, Passenger airbag occupant sensing deactivation, Stability and Traction control and Auto delay off headlamps.

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