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Resources for the Repair and Maintenance of your 2003 Toyota Highlander

2003 Toyota Highlander

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2003 Toyota Highlander Problems

Engine -- Verified

When changing the air filter, it is easy to knock off a hose on the air filter housing, which is part of the emission control system. If the vehicle is driven with this hose disconnected, the Check Engine Light will illuminate.

Electrical & Lights -- Verified

A problematic center airbag sensor can cause the airbag malfunction light to illuminate.

Engine -- Verified

When changing the air filter, it is easy to knock off a hose on the air filter housing, which is part of the emission control system. If the vehicle is driven with this hose disconnected, the Check Engine Light will illuminate.

Electrical & Lights -- Verified

On higher mileage vehicles, an engine misfire may develop and/or the Check Engine Light may illuminate due to a failed ignition coil. It is not uncommon to replace all the coils when the first one fails in order to prevent return trips to the repair shop.

Exhaust & Emissions -- Verified

Intermittent failure of a purge control valve in the evaporative emission system can cause the Check Engine Light to illuminate. A failed valve should be replaced to correct this problem.

2003 Toyota Highlander Recalls (Recent)

Body, Interior & Misc., May 7, 2004

Summary: CERTAIN SPORT UTILITY VEHICLES HAVE A CHILD PROTECTION LOCK (CPL) SYSTEM ON BOTH OF THE REAR SIDE DOORS. WHEN AN OPERATOR OF THE VEHICLE CLOSES THE DOOR VERY HARD WITH THE CPL LEVER SET TO THE LOCK POSITION, THERE IS A POSSIBILITY THAT THE LEVER MAY CONTACT THE BODY PANEL, CAUSING THE CPL LEVER TO MOVE INTO THE UNLOCK POSITION.

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Drive Train, January 2, 2004

RepairPal Expert Overview:

Toyota has recalled certain 2003 4Runner and Highlander trucks because the lug nuts used for upgraded alloy wheels are not suitable for the spare tire and wheel. If the existing lugs are used, the spare tire may loosen and come off. Dealers will provide owners with newly designed lug nuts, a warning label for the spare wheel, and an owner's manual addendum.

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2003 Toyota Highlander Questions and Answers

Stett, 2003 Toyota Highlander, 3.0L V6, Ann Arbor, MI

What should be used to clean the idle control valve? Does the valve need to be taken apart or just taken off and soaked? Is there an additive that can be used to clean it? I have P0505 DTC set on m...

pacificocean, 2003 Toyota Highlander, 2.4L 4 Cylinder, Beaverton, OR

I was told to remove the grill to pull the entire light fixture out, but I haven't figured out how to remove the grill

Stett, 2003 Toyota Highlander, 3.0L V6, Ann Arbor, MI

Just out of curiosity, how (if at all) does the throttle body motor tie into this? I recently had it replaced when the car did not want to stay running at all. That did the trick, but now that I am...

lingil, 2003 Toyota Highlander, Gorham, NH

I AM TOLD THAT I NEED TO REPLACE THE CANISTER #77740-48080. WHAT IS THE CAUSE

WorthFlorida, 2003 Toyota Highlander, 3.0L V6, Lake Worth, FL

Just started this past week, my wife tells me that the AC light on the AC switch was blinking. She cycled it and it seemed OK. But this morning it stalled when putting it in drive and the AC was on...

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2003 Toyota Highlander Reviews

Sweet ride, reliable. Handles well, regardless of weather. Only has 56,000 miles on it but it looks and acts nearly brand new!

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