Two problems related to ignition switch have been reported for the 2007 Toyota Camry. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 Toyota Camry based on all problems reported for the 2007 Camry.
My 2007 Toyota Camry le on July 15, 2012 12:15 pm, driving back from church about 3 miles from home, we noticed a horrible rubber burning smell. As we continue driving no more than a mile, the vehicle driver window power switch started smoking; upon trying to roll down the windows to avoid the shocking smell, the windows would not roll down. Infant and adults started coughing profusely. Air conditioning was on and we turned it off with no change. Windows were stuck and not able to roll down, the smell and cough got stronger. We had to pull over to get air and had the toddler and young adults walk home due to the smell. We turned the car off for about half hour to cool down without any success. As soon as the car's ignition switch was turned on it started smoking again, per the Toyota car dealer where I bought the car brand new 5 years ago; the car is unsafe to drive and a health hazard. I reported the incident to Toyota corporation on Monday July 16, 2012 and as of today Thursday, July 20, 2012 after several attempts to contact Toyota; they returned my call just to inform me that my case was escalated to a supervisor and that I will get a call back tomorrow. Per the Toyota dealer that inspected my vehicle, the issue is the master power switch. The dealer was nice enough to waive the inspection fee due to the severity of the issue. Prior to this incident, I noticed that sometimes the passenger front door did not lock upon setting the alarm. As time went by it stopped working all together. Then the same door, front passenger window would not roll down on occasions and the day of the incident it rolled down by itself. I rolled the window up and after the incident all 4 windows are nonfunctional.
2007 Toyota Camry xle with Smart key , keyless ignition. Page 320 of the owners manual states caution "do not touch the engine start stop switch while driving", in bracketed yellow background. Next paragraph states in regular bw print; "if you have to make an emergency stop,press and hold the engine start switch for more than three seconds. The fallacy of this is the vehicle speed must be under 3 mph. If you apply the emergency brake/parking brake the engine will quit at below 40 mph. I went thru several tests to determine this flaw. This is poor design. I have heard via tv that the Lexus 350 ,almost same vehicle as Camry xle except for nicer interior and seats, has an uncommanded acceleration problem. Probably all 2007 Lexus vehicles have keyless ( Smart key) ignition. If you were traveling at 70 mph and got uncommanded acceleration with Smart key you would be in a bad situation. I have not had an uncommanded acceleration and do not want one at interstate speeds.