20 Most Recent 2003 Toyota Prius Questions & Answers


Firs step replace the spark plugs & check the air cleaner if continue the vibration check the Engine soport

2003 Toyota... | Answered on Sep 30, 2017


There's a known problem with the early Toyota Prius (2001 - 2003), when running the engine for a long period of time without moving or when the car is driven only for short trips (short city driving), the Prius might not start.

You have to change the original battery with a 356 CCA which is bigger because the battery is bigger you also have to change what is holding it into place.

2003 Toyota... | Answered on Mar 13, 2017


code p 3016 refers to hybrid battery pack --weak===causes --hybrid battery pack---hybrid battery pack control module
take it in to a service center and have it properly diagnosed

2003 Toyota... | Answered on Aug 20, 2016


well, a hard firm pedal, usually indicates a bad brake booster or a vacuum leak to booster or the vacuum check valve, on booster. TO TEST BRAKE BOOSTER; pump brakes several times with engine off to deplete stored vacuum. turn on engine with pushing slightly on pedal. you should feel the pedal fade away a bit and then become firm, but not hard. if you feel nothing at the pedal when engine starts the booster is at fault. good-luck !!

2003 Toyota... | Answered on Jun 26, 2016


it seems no one has loaded a map of your city into its memory before ,so its looking for a cell system hook up to get one , you could connect it to your cell phone via Bluetooth and then it could get a map that way

2003 Toyota... | Answered on Feb 26, 2016


Check your brake pads first,as they have a wear warning clip on them.so if you hear a loud screaming noise.Then its quite possible they have worn causing ur warning lights to come on.And i would get anouther quote as that is quite dear for a pump replacement.If it is the pump.good luck pippall!!

2003 Toyota... | Answered on Aug 09, 2015


One of the most common reasons for then the Ac compressor to shut off/down is a low freon level. Does it blow cold air while it is in operation? If the freon level is ok, you could also have a cycling switch failure. It would be uncommon for the compressor to operarte normally for a while and then not work properly if the freon level is adequate

2003 Toyota... | Answered on Jul 25, 2015


Repair or replace.

2003 Toyota... | Answered on Dec 03, 2014


Sounds like a sensor malfunction. If it's a recent model, it may be under warranty. Take it to the dealer.

2003 Toyota... | Answered on Jul 22, 2014


Sounds like your starting battery is going dead. You may want to either go onto Prius Chat's website and search for this: 1NZ-FXE Charging - for self install directions. Good luck!

2003 Toyota... | Answered on Mar 12, 2014


have a wheel alignment done after a complete front suspension check as what you describe is castor wobble from bad wheel alignment. Have the tyres check for side wall bulge and steel belt separation as well.

2003 Toyota... | Answered on Jan 03, 2014


My Toyota Prius hybrid warning light has come on three times in eight years. If I turn the car off for 20 minutes, the hybrid light is off but the check engine light is on. After a while, the check engine light goes off. I think this problem is related to moisture somehow entering the hybrid vent on the driver's side. All three times this has happened, the weather was wet. Kevin Cardiff

2003 Toyota... | Answered on Dec 30, 2013

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