This is the third J.D. Power Asia Pacific 2005 Malaysia Initial Quality Study (IQS) conducted so far. The study measures new-vehicle quality in the first two to six months of ownership.

The study focuses on 135 problem symptoms affecting quality across nine IQS problem categories: ride, handling and braking, features and controls, seats, heating, ventilation and cooling, sound system, vehicle exterior, vehicle interior, transmission, and engine.

We can see that the Proton Wira managed to get into the Top 3 for the entry-level mid-sized car segment, with 171 problems per 100 cars, above the segment average of 241 problems per car. This also means the Proton Waja and Proton Gen2 are probably below industry standard.

The study included data from over 2600 vehicle owners of 37 models. These owners purchased their vehicles between August 2004 and February 2005.