Assuming that you have a steering lock at all, it is likely a Rev D. Those cars that came with Rev D are not on the recall list because Nissan has decided that after four revisions they finally got it right (I don't think so...). If it fails you might have to fight to get a dealer or Nissan Corporate to cover the costs of the repair.
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2011 370Z 6MT Sport Gun Metallic | ARC | CJM | Ecutek | FI | Fujimura | R2C | SPL | Stillen | TWM | Z1 | ZSpeed | |