Intermittent 1-2 shift problem began at 130,000km, apparently common on this transmission (4t65e). Changed tranny fluid & filter, problem was solved before it got worse. Upgrading tranny fluid to DEXRON VI is a good idea anyway. Tip: change the tranny fluid/filter early, I'd say at around 90-100k. My driving was also mainly highway, manual said it should have been good until 160k.
Driver side heated seat stopped working at 120,000km.
Fuel filter partially clogged and replaced at 125,000km.
Various backlights on the temperature control console and radio became intermittent, then stopped working.
Outstanding reliability on the 3800 series II engine as could be expected. Original Delco plugs and cables are great, and still going strong at over 135k.
Amazing ride quality and comfort inside the cabin. Plan on keeping it until it rusts out from underneath me.
Would you buy another car from this manufacturer? Yes
Review Date: 10th May, 2010