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Übercargeek
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As has become our custom here at my.IS, we bring you the latest updates and information from Consumer Reports' twice-yearly (April Auto Issue and November New Car Preview) issues devoted solely to automotive consumer and reliability information.

The November 2009 special issue, which bears the Best & Worst New Cars title, focuses solely on the 2nd-generation Lexus IS. The first piece of information we find is a general Predicted Reliability chart on Upscale Cars revealing the following results (all percentages are approximate):

<UL><LI>1) Lincoln MKZ (FWD) (60% better than average)
<LI>2) Acura TL (AWD) (55% better than average)
<LI>3) Volkswagen CC (4-cyl) (45% better than average)
<LI>4) (tie) Acura TL (FWD), Hyundai Azera & Lexus ES (40% better than average)
<LI><B>5) (tie) Lexus IS350 & Lexus IS250 (AWD) (35% better than average)</B>
<LI>6) (tie) Infiniti G Sedan (RWD & AWD) and Toyota Avalon (30% better than average)
<LI>7) (tie) Acura TSX & Nissan Maxima (25% better than average)
<LI><B>8) Lexus IS250 (RWD) (20% better than average)<B></UL>
<P>A glance at the Compact Sports Sedans Vehicle Ratings CR Quick Recommendations reveals that the Lexus IS 250 is tied for second place:

<UL><LI>1) Infiniti G37 (RWD) (95 points)
<LI>2) (tie) Lexus IS 250, Acura TSX BMW 335d and Cadillac CTS (base 3.6) (84 points)</UL>
<P>This is Consumer Reports' summary of the Lexus IS 250's capabilities:

<UL><LI><B>Predicted Reliability:</B> Better than Average
<LI><B>Owner Satisfaction:</B> Average
<LI><B>Owner Cost:</B> Average
<LI><B>Safety:</B> Much Better than Average
<LI><B>Fuel economy:</B> Average
<LI><B>Highs:</B> Transmission, braking, quietness, fuel economy, fit & finish, turning circle
<LI><B>Lows:</B> Ride, rear seat, lacks sportiness</UL>
<P>Finally, we come to the most significant portion of the Consumer Reports ratings: The individual, more detailed Vehicle Profile for the 2nd-generation Lexus IS. To the above information, the Report Card adds that Fuel Economy is Average and breaks down the Safety component into Much Better than Average Accident Avoidance and Better than Average Crash Protection. Naturally, it is one of Consumer Reports' Recommended vehicles, and adds this summary of the 2nd-generation Lexus IS:

Lexus' small rear-wheel-drive sedan has a plush, quiet interior with simple controls, but it lacks the sporty feel of some competitors. Standard stability control makes handling secure, but it is not very sporty, partly because the steering is short on feedback. The ride is jittery. The base 2.5-liter V6 is refined and delivers quick acceleration and a good 24 mpg overall. The optional 3.5-liter V6 is very strong. All-wheel-drive is optional on the IS 250. The front cabin is tight, and the rear seat is extremely cramped. IIHS crash-test results are impressive. A high-performance, V8-powered IS F with an eight-speed automatic is also available. A hard-top convertible version is new for 2010.

<B>RELIABILITY HISTORY</B> (now, for the first time, including 2009 models)
<P><B>Engine, major</B> <I>(Engine rebuild or replacement, cylinder head, head gasket, turbo or supercharger, timing chain)</I>
Much Better than Average for 2008 and 2009
Better than Average for 2007
Average for 2006
<P><B>Engine, minor</B> <I>(Oil leaks, timing belt, accessory belts, engine mounts, engine knock or ping)</I>
Much Better than Average for 2006, 2007 and 2009
Better than Average for 2008
<P><B>Engine Cooling</B> <I>(Radiator, cooling fan, antifreeze leaks, water pump, thermostat, overheating)</I>
Much Better than Average
<P><B>Transmission, major</B> <I>(Transmission rebuild or replacement, torque converter, premature clutch replacement)</I>
Much Better than Average
<P><B>Transmission, minor</B> <I>(Gear selector and linkage, coolers and lines, rough shifting, slipping transmission, leaks, transmission computer, transmission sensor or solenoid, clutch adjustment, hydraulics [clutch master or slave cylinder])</I>
Much Better than Average
<P><B>Drive System</B> <I>(Driveshaft or axle, CV joint, wheel bearing, differential, transfer case, 4WD/AWD components, driveline vibration, traction control, stability control, electrical failure)</I>
Much Better than Average for 2006 and 2008
Better than Average for 2007 and 2009
<P><B>Fuel System</B> <I>(Check-engine light, sensors [includes O2 or oxygen sensor], emission control devices [includes EGR], engine computer, fuel cap, fuel gauge/sender, fuel injection system, fuel pump, fuel tank, fuel leaks, stalling or hesitation)</I>
Much Better than Average for 2009
Better than Average for 2008
Worse than Average for 2006 & 2007
<P><B>Electrical</B> <I>(Alternator, starter, battery, battery cables, engine harness, coil, ignition switch, electronic ignition, distributor or rotor failure, spark plugs and wires failure, sensors or module)</I>
Much Better than Average
<P><B>Climate system</B> <I>(Blower [fan] motor, A/C compressor, condenser, evaporator, heater system, automatic climate control, defrost, refrigerant leakage, electrical failure)</I>
Much Better than Average for 2008 & 2009
Better than Average for 2007
Average for 2006
<P><B>Suspension</B> <I>(Shocks or struts, ball joints, tie rods, wheel bearings, alignment, steering linkage [includes rack & pinion], power steering, wheel balance, springs or torsion bars, bushings, electronic or air suspension)</I>
Much Better than Average for 2009
Better than Average for 2007 & 2008
Average for 2006
<P><B>Brakes</B> <I>(Premature wear, pulsation or vibration, squeaking, master cylinder, calipers, antilock system [ABS], parking brake, brake failure)</I>
Better than Average for 2008 & 2009
Much Worse than Average for 2006 & 2007
<P><B>Exhaust</B> <I>(Muffler, pipes, catalytic converter, exhaust manifold, leaks)</I>
Much Better than Average
<P><B>Paint/Trim</B> <I>(Paint [fading, chalking, cracking or peeling], loose exterior trim or moldings, rust)</I>
Much Better than Average for 2009
Better than Average for 2006, 2007 and 2008
<P><B>Body Integrity</B> <I>(Squeaks or rattles, seals and/or weather-stripping, air or water leaks, loose interior trim and moldings, wind noise)</I>
Better than Average for 2006, 2008 & 2009
Average for 2007
Better than Average for 2006
<P><B>Body Hardware</B> <I>(Windows, locks and latches, tailgate, hatch or trunk, doors or sliding doors, mirrors, seat controls and mechanism, seat belts, sunroof, convertible top, glass defects)</I>
Much Better than Average for 2006 & 2008
Better than Average for 2007
<P><B>Power Equipment and Accessories</B> <I>(Cruise control, clock, warning lights, body control module, keyless entry, wiper motor or washer, tire pressure monitor, interior or exterior lights, horn, gauges, 12V power plug, alarm or security system)</I>
Much Better than Average for 2008
Better than Average for 2006 & 2007
Average for 2009
<P><B>Audio system</B> <I>(Audio systems, entertainment systems, navigation system, backup camera/sensors, communication system)</I>
Better than Average for 2008
Average for 2007
Worse than Average for 2009
Much Worse than Average for 2006
<P><B>OVERALL USED CAR VERDICT</B>
Much Better than Average for 2008
Average for 2006, 2007 & 2009
<P><B>NEW CAR PREDICTION</B>
Better than Average
 

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Is there a similar breakdown that would include the first-gen? I'd like to see how my '05 stacks-up.
 

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Discussion Starter #3
Is there a similar breakdown that would include the first-gen? I'd like to see how my '05 stacks-up.
A search of the Media News section will reveal that I do these Consumer Reports write-ups once or twice a year. The April ones include info on the 1st-gen IS 300. Unfortunately, so few 2005 IS 300s were sold that there was never a large enough database for them to publish results. Every April Annual Auto Issue I've seen says "Insufficient Data" under the 2005 model year column.

Looking at the 2004 model year info in this article: http://my.is/forums/f42/consumer-reports-lexus-april-2009-a-386201/ is the closest you can get to the current picture of what you can expect from your 2005.
 

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^^^^^ I do vaguely recall coming across that post in April, shortly after I had purchased my '05, and being encouraged by the findings. I'll be on the lookout for any updates in April's posting. Thanks so much for these write-ups!
 
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