What's the 2010 Chevy Impala power steering fluid type?

The 2010 Chevrolet Impala is not very picky when it comes to power steering fluid. Users report fluids running the gamut, from Prestone universal power steering fluid to ATF+4 to DEXRON-ViAutomatic transmission fluid. I should note that GM recommends against DEXRON-VI, but instead recommends their own proprietary blend; with that said, You can safely use either. The manufacturer's recommend power steering fluid is P/N 89021184. This can be found for as little as $3 per bottle, so if You're worried about staying with the precise manufacturer's specifications, it won't hit You in the wallet too hard. However, if You're looking for a cheaper alternative, many do exist and very likely won't cause any harm to Your PS system.