Recommended Tire Pressure for Cadillac STS

What should tire pressure be on Cadillac STS?

Check out the recommended Cadillac STS tire pressure in psi depending on the year of production, trim level and original equipment tire size.

Find your Cadillac STS year in the charts below to see the available stock tire sizes and corresponding tire inflation pressures with load index and speed rating.

2008-2011 Cadillac STS Tire Pressure

Monitor tire pressure with the TPMS or gauges. Fix flat tires with tire inflators.

Tire size	Load index	Speed rating	PSI (Front / Rear)
P 235/50 R17	96	V	30 / -
P 235/50 R18	101	W	30 / -
P 235/40 R19	96	Y	32 / 35
P 245/40 R19	94	W	32 / 35

2005-2007 Cadillac STS Tire Pressure

Monitor tire pressure with the TPMS or gauges. Fix flat tires with tire inflators.

Tire size	Load index	Speed rating	PSI (Front / Rear)
P 235/50 R17	95	V	30 / -
P 235/50 R18	101	W	30 / -
P 255/45 R18	101	V	30 / 33
P 235/40 R19	96	Y	32 / 35
P 245/40 R19	94	W	32 / 35
P 255/40 R19	95	Y	32 / 35

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