- intermittent error like this does seem to be battery related... TPM in one or more of the wheels are going out. I replaced all 4 with new as it's going to happen anyway, at the same time I got new rubber. Better than having to break the bead again to replace another TPM.

- Our X (at least the '08s) did not indicate which specific tire.

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'08 X5 3.0si - Alpine White / Saddle Brown interior
Specs: Sport Pkg, Premium Pkg, Tech Pkg, Comfort Access, Aero Kit, Style 433 staggered 20s on Conti DWS
Mods: Carbon 35 tint, LED angel eyes, GP Thunder 7500k fogs, H&R 20mm/25mm spacers, clear reflectors, gunsmoke-tinted taillights
Coded: Digital speedo, windows/sunroof/tailgate close via keyfob

X5 pics at Flickr