Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.


pretty bad
Typical Repair Cost:
No data
Average Mileage:
297,015 miles
Total Complaints:
1 complaints

Most Common Solutions:

  1. not sure (1 reports)
2003 Toyota Highlander AC / heater problems

AC / heater problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 2003 Toyota Highlander:

Unsubscribe any time. We don't sell/share your email.

2003 Toyota Highlander Owner Comments

problem #1

Nov 032015

Highlander Limited 3.0L

  • Automatic transmission
  • 297,015 miles


My 03 highlander awd has been the most reliable vehichle ive ever owned and ive been around. Its never left me dtrsnded on the road and has travelled hundreds of thousands of kilometers with a hitch. I attest this longevity to oil changes and maintenance. I changed the transmission fluid every year since its like changing the engine oil all i need is a wrench and no jack. I just slide under and do my thing. Every 2 years i change the antifreeze.

NOW the temperature control is another story i have tightened the control with a socket wrench and i still need to wedge paper around perimeter of knob to apply stress on one side.Its a lot of fiddling trying to get hot air when its freezing out. Its been doing this for 250,000km and gotten worse. It costs 800.00 for a new one and i cannot judtofy it. Ive had thd drive shaft give me a 900.00 issue and the powerr steeting lines rusted out over the fender area. Hard to get to but i replaced it myself. No one in this forum who owns a newer toyota will be as happy as md owning one and ill tell you why.

My old friend is a 37 year toyota tech and he said thst the Japanese models are moslty bullet proof when it comes to reliability. The Japanese work to live and live to work which is shown in their product. The newer ones from other countries are much more problematic unfortunantly.

P.S.My friend doesnt work on my car since the only work required is brakes and tires and struts and belts. My radiator hoses are still factory original though. Thats the most amazing part and the air is freezing cold! When controller works.

- , Toronto, ON, Canada

Not what you are looking for?