GM Service Manual Online
For 1990-2009 cars only

Inflation Pressure Conversion (Kilopascals to Psi)

Refer to the Vehicle Certification-Label for the correct tire inflation pressure and load for the factory installed tires. The tire pressures may be printed in both kilopascal (kPa) and psi. The correct tire inflation pressures for the factory installed tires is when the tires are cold. "Cold" means the vehicle has been sitting for at least 3 hours or driven no more than 1.6 km (1 mi). Inspect the tires inflation pressure when the tires are cold. One psi equals 6.9 kPa.

kPa

psi

kPa

psi

140

20

215

31

145

21

220

32

155

22

230

33

160

23

235

34

165

24

240

35

170

25

250

36

180

26

275

40

185

27

310

45

190

28

345

50

200

29

380

55

205

30

415

60

Conversion: 6.9 kPa=1 psi