One problem related to visibility has been reported for the 2006 Jeep Wrangler. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Jeep Wrangler based on all problems reported for the 2006 Wrangler.
Jeep Wrangler fan speed selector switch is a known issue from the "tj" years. They typically burn out the first 2 speeds and the last 2 will work for a while, and also fail leaving no method to defrost or clear your window.