Brand: Foot on brake essential to shift out of Park - Minneapolis Star Tribune
Here’s how the system is designed to operate: With the ignition switch in the on position and the shift lever in Park, voltage is supplied through the transmission control switch to the transmission lock solenoid, energizing the solenoid and... When the brake pedal is then applied, the transmission control switch is de-energized, releasing the lock solenoid and allowing the shift lever to be moved out of the Park position. While driving at highway speeds and going over large horizontal cracks or seams in the pavement, it feels that the car slides to the side a little. Can tire pressure cause this. She tends to keep the tire pressures up higher in the winter months so the tire pressure sensors won’t yell at her for being too low in the cold weather. Now that it’s summer, I just lowered the pressure in each tire to 34 psi. A: Tire pressure plays more than one role in vehicle performance. The tire is part of the suspension and acts like a spring in absorbing some percentage of the bumps generated by road irregularities. The higher the tire pressure, the stiffer the spring rate. Thus, an overinflated tire may well contribute to the skipping or sliding characteristic you’ve described. Best I can tell, the recommended tire pressures for this vehicle are 32 psi in all four tires. Adjust the tires to this pressure and drive the car for several days. Source: www.startribune.com
