>Toyota said in a statement that some replacement 12-volt batteries used in the SUVs have smaller top dimensions than others. If the hold-down clamp is not tightened properly, the battery could move, allowing the positive terminal to contact the clamp and short circuit, the company said. Toyota said it is still preparing a fix. When the remedy is ready, dealers will replace the hold-down clamp, battery tray and positive terminal cover with improved ones.

This seems fishy. The cost to properly torque and mark a bolt in a recall is orders of magnitude less than making and installing all new parts.