The 2012 Cadillac SRX is equipped with the StabiliTrak system that helps prevent crashes. But there’s also a lesser known benefit. It removes water from brake components during wet highway driving conditions. This offers extra control in soggy conditions since Auto Dry Brakes can help enhance overall brake effectiveness during rainy conditions on the highway.
Auto Dry Brakes function with the SRX RainSense automatic windshield wiper system, or when the standard windshield wipers are operating and the SRX had been continuously moving at more than 20 mph for more than four miles without using the cruise control.
The StabiliTrak hardware generates a minimal amount of hydraulic pressure, pulsing pressure to its brake calipers at intervals to wipe water from the brake rotors while the car is running. GM said that when the rotors are drier, the brake system becomes more effective and provides a “more-assured stopping feel and better brake effectiveness in wet conditions.
Auto Dry Brakes apply pressure to all four of the SRX’s disc brakes at intervals of every six kilometer while the accelerator is applied.
Randy Leek, a General Motors brake development engineer, said that it’s very important that before the driver steps on the brake pedal, the brakes have to be very dry. He explained that this feature was designed to be sure that the brakes offer optimal braking performance during “inclement weather.”
The 2012 SRX has a starting price of $36,060 (including $875 destination charge). It is powered by a 308hp 3.6L direct-injected V6 engine that has a driver-selectable ECO Mode for optimal fuel economy.
Along with a four-wheel independent suspension system, the new Cadillac SRX features a rack-and-pinion hydraulic steering system. This steering system was particularly tuned for sport sedan-style driving with dynamic on-center feel.
A variable-effort and speed-sensitive rack-and-pinion hydraulic steering system is also offered. Moreover, the new Cadillac SRX is blessed, as standard, StabiliTrak electronic stability control that perfectly complements four-wheel-disc/four-channel-ABS braking system, which comes as standard. Also featured as standard on the 2012 version of the Cadillac SRX is an independent MacPherson strut suspension system on the front and an independent “H-arm” suspension on the rear.
The MacPherson strut suspension is fitted with a direct-acting stabilizer bar and hydraulic ride bushings while the “H-arm” suspension comes with a lightweight hollow aluminum lower control arm as well as a hollow stabilizer bar. Base and the Luxury Collections models, as standard, are equipped with power-assisted rack-and-pinion steering, while Performance and Premium Collections are fitted with power-assisted variable-effort and speed-sensitive rack-and-pinion steering system.
All SRX models feature a rear axle ratio of 3.39. Luxury, Performance and Premium Collections could be optionally availed with a trailering package that hikes their towing capacity to 3,500 pounds (1,587 kg). The suspension system for the Base version is specified with new upper front strut mounts, new bonded bushings for the front stabilizer bar and improved shock valve tuning, as well as new twin-tube rear shocks for a higher level of road isolation.
This means that the Base model could provide better ride quality with outstanding handling attributes. On the other hand, the Sport active suspension – a continuously variable real-time damping suspension system fitted as standard on Performance and Premium Collections -- now features new front upper strut mounts, bonded stabilizer bar bushings and new shock valving, as well as new calibrations. Installed on each corner are electronically controlled dampers that continuously “read” the road to allow for real-time adjustments within milliseconds.
These dampers provide the exact damper rate in any road conditions, thereby resulting to a high level of control and comfort. Also as important is an increase in damping during aggressive handling maneuvers, which thereby reduces the SRX’s roll velocity and pitch velocity.
For the 2012 version of the SRX, Cadillac is also offering an all-wheel-drive system that features an electronic limited-slip (eLSD) rear differential that does not enhance traction in slippery road conditions, but also enables side-to-side torque transfer along the rear axle for better control while cornering. Developed along with Haldex, the eLSD allows the AWD system to allocate torque from front-to-rear, side-to-side, across the rear axle.