I found it! Do a search on "How does one disable the DRL daylight running lights option on the 2001 Toyota Sienna?" The 2001 is the same (as far as I know) as the 2003. They changed Toyota Sienna in 2004. http://wiki.answers.com/Q/How_does_one_disable_the_DRL_daylight_running_lights_option_on_the_2001_Toyota_Sienna&updated=1&waNoAnsSet=2 Anyway, look up "How does one disable the DRL daylight running lights option on the 2001 Toyota Sienna?" and that will answer your question. I did it on mine and it works! Here are some website's I found that have the procedures for disabling the DRL on 1999 - 2003 headlights: http://www.pnw4runners.net/fj/tsb/2000_disable_drl.pdf http://www.c7performance.com/techinfo/tsb/TSB_DRL_REMOVE.pdf http://www.yotatech.com/~corey/tech/ducky_drl/ducky.htm http://www.geocities.com/mistertwo@sbcglobal.net/tsb/El011-00/El011-00.htm http://vamp.darkravers.net/cpg/displayimage.php?album=107&pos=6
The 2003 Toyota Sienna has 24 valves.
The 2003 Toyota Sienna has a V6 engine.
The 2003 Toyota Sienna is a gas-powered vehicle.
The 2003 Toyota Sienna has a 4-speed automatic.
The 2003 Toyota Sienna has double overhead cam (DOHC).
The height of the 2003 Toyota Sienna is 5 ft. 7.3 in. (67.3 in.).
The 2003 Toyota Sienna is 16 ft. 2.2 in. (194.2 in.) long.
The maximum payload of the 2003 Toyota Sienna is 1327 lbs..
The 2003 Toyota Sienna runs on regular unleaded.
The curb weight of the 2003 Toyota Sienna is 3919 lbs..
The 2003 Toyota Sienna's turning circle is 40 ft..
The 2003 Toyota Sienna has a drag coefficient of .32 Cd.