Are you sure it is the switch? The 2009s went through 3 different steering
wheel tilt/telescope controller boxes if I remember correctly. Early production 2009s used a controller that required two "at end of travel" detection limit switches; later 2009s used a different controller that didn't need the limit switches. A TSB was released to convert early 2009s to this updated controller.
As a quick test: move the steering
wheel all the way down... and then HOLD the tilt switch in the down position for another 20 seconds or so. On the 2nd controller modules, the controller tries to "remember" where the tilt and telescope motion is relative to the physical stops. When that memory does not match the actual tilt/telescope positions, the steering
wheel travel is incorrectly limited. Holding the switch for a long while gets the controller memory and physical tilt/telescope mechanism back in sync.
Still not working? Is your car an early 2009 production model? Then you have the limit switches. They're known to get jammed with dirt/dust/hair/whatever. In fact, that's why the revised controller (and the TSB update) exists: to remove those problematic switches. With a Phillips screwdriver, remove the "knee panel" (bottom panel of dash assembly) and use a small flashlight to peer into the innards. If you have an early 2009 model you will see two black plastic bumps - one for each switch - surrounded by small metal pieces with rectangular holes in them. Those plates move back and forth with the tilt and telescope; when the tilt up or down limit is reached, one plate moves the switch to tell the computer "at the limit. Cut power to the motor." Same for the telescope plate and switch. If the switch sticks/jams in that position...then you can't tilt/telescope in that direction. Use a small wood or plastic stick (a chopstick works) to wiggle the switch bumps to free them up. See if that cures your bug.
The switches on my early-production 2009 tended to stick every couple months. I finally got sick of the issue and unscrewed the two plates. That way the switches never moved away from their center "tilt & telescope are not not at the limits" position and I never had issues again. Just remember to not hold the tilt/telescope switch too long against a stop when the motors are trying to run to avoid burning them out. This fix works on the early production 2009s with the limit switches. The later controllers are smart enough to remove power to the motor when at a limit.
Note for others reading this post: the power seats have similar limit switches. The ones that monitor forward/aft motion can get jammed from crud collecting underneath the seats. From the back seat area, shine a flashlight under the front seats and you'll see the limit switches. Clean out any obvious debris, wiggle them with the chopsticks, and restore your seat motion.
fedit: the factory service manual does not have good pictures of the tilt/telescope control switch. The upper and lower steering column covers have a few screws accessed from below, then the covers snap apart to get to the switch. At least that's how I remember it...
mike c.