Black plate (30,1)Cadillac SRX Owner Manual (Include Mex) - 20129-30 Driving and OperatingDrive SystemsAll-Wheel DriveVehicles with this feature alwayssend engine power to all fourwheels. It is fully automatic, andadjusts itself as needed for roadconditions.When using a compact spare tireon an AWD vehicle, the systemautomatically detects the compactspare and disables AWD.To restore AWD operation andprevent excessive wear on thesystem, replace the compact sparewith a full-size tire as soon aspossible. See Compact Spare Tireon page 10‑87 for more information.BrakesAntilock BrakeSystem (ABS)This vehicle has the Antilock BrakeSystem (ABS), an advancedelectronic braking system that helpsprevent a braking skid.When the engine is started and thevehicle begins to drive away, ABSchecks itself. A momentary motor orclicking noise might be heard whilethis test is going on, and it mighteven be noticed that the brakepedal moves a little. This is normal.If there is a problem with ABS, thiswarning light stays on. See AntilockBrake System (ABS) Warning Lighton page 5‑22.If driving safely on a wet road and itbecomes necessary to slam on thebrakes and continue braking toavoid a sudden obstacle, acomputer senses that the wheelsare slowing down. If one of thewheels is about to stop rolling, thecomputer will separately work thebrakes at each wheel.ABS can change the brake pressureto each wheel, as required, fasterthan any driver could. This can helpthe driver steer around the obstaclewhile braking hard.As the brakes are applied, thecomputer keeps receiving updateson wheel speed and controlsbraking pressure accordingly.Remember: ABS does not changethe time needed to get a foot up tothe brake pedal or always decreasestopping distance. If you get tooclose to the vehicle in front of you,there will not be enough time to