As a side note, surprised you got a low air warning on the spare. My KK was built 6/2008 (two years ago) and I'm guessing that's when the spare was filled. Checked it a few days ago and seems to still be holding near original PSI. I didn't use a gauge, but would doubt that it's lower than 25PSI just from pushing against the sidewall -- seemed very firm.
2008 Jeep Liberty Limited 4x4
Inferno Red | Pastel Pebble Beige
uConnect GPS • Power Sunroof • Skid Plate Group • Trailer Tow Class III Group
Pirelli Scorpion ATR 235/65R17 • WeatherTech Floor Liners • Mopar Cargo Tray