Chrysler has taken steps to rectify a handling problem we identified late last year with the new Jeep Grand Cherokee. Rest assured, Grand Cherokee owners and potential shoppers: The fix works.
When we tested the 2011 Jeep Grand Cherokee V6 last fall, we were quite impressed overall, but found its on-limit handling performance disconcerting. In our double-lane-change avoidance maneuver, it skidded and hopped sideways on several runs (see video above). A V8 version we tested later didn't exhibit that problem.
Chrysler engineers asked to come to our track and review our findings. In early December we were informed that Chrysler had developed a fix. It's a software update focused on the stability control system. Chrysler started incorporating the update as of December production. All dealers have been performing that repair free for customers since early January and the fix has been applied to all vehicles in stock. It involves a "reflash" of the vehicle software. (Download Chrysler service bulletin pdf.)