Cadillac BLS Owner's Manual page 214

460_OM_MY09.book Page 214 Wednesday, April 2, 2008 10:32 AM
214 Car care
Valve without sensor
If the tyre pressure decreases
If the tyre pressure decreases to 0.4 bar
(6 psi) below the recommended pressure
then a warning is shown on the DIC as to
which tyres are affected.
Tyre pressure low,
front left. Check tyres.
Adjust the pressure as soon as possible.
If the tyre pressure continues to decrease
then an alarm is shown on the DIC when the
pressure has decreased below the lowest
permitted pressure which is 1.6 bar
(23.2 psi).
An alarm is also received when leakage is
greater than 0.2 bar/min. (3 psi/min.).
Flat tyre front left.
Make a safe stop.
Reduce speed (avoid heavy braking and
significant steering wheel movement) and
stop the car as soon as possible at a suit-
able location. Replace the defective wheel.
The fault message can remain for up to
10 minutes after restarting the car. Then it
disappears if the tyre pressure is correct.
Check/adjust the pressure in the other tyres
when a fault message is shown.
Note that tyre pressure can decrease
without a puncture. The pressure can
decrease approximately 0.2 bar (3 psi) over
a period of three months.
The temperature in the tyre also affects the
tyre pressure.
For further information on tyre air pres-
sure, see page 210.
Allow 10 minutes for the system to recog-
nize the wheel/sensors positions after fitting
a new set of tyres. During this period no low
pressure warning or alarm can be triggered.