Hi I have Prius 2001 has warning light on and Engine check lihgt, and Hybrid lihgt on engine runing stop plese advice, Fred Moon E-mail:[email protected]

The problem may be the check engine light only, whenever it turns on the master warning light may also turn on, if there is an autozone or similar autoparts place close by you can go there and they can diagnose the check engine light using their scantool, then you can reply here to me with the code numbers and I can help, the code numbers are important so please write them down.

YOU EITHER REPLACE HYBRID BATTERY OR HYBRID BATTERY
COMPUTER

CHECK CAR WITH CODE SCANNER FOR FAULT CODE

I don't know about hybrids, but on most vechiles, you check power steering fluid with engine running.

Seems to be alot of this problem mentioned on this forum regarding prius warning lights.
Don't worry yet might just be a service reminder.
Google " 2005 prius warning light " the first page will show a link to toyotapartsandservice.com where you can find the owners manual that covers all the warning lights.

Acording the online manual , that is the Hybrid system warning light. I havn't tracked down exactly what it means , but is is grouped in with other service reminders. Will add more info when i find it " Google 2005 prius warning light " one of the first listings has a link to toyotapartsandservice.com

your owners manual should show all of the symbols and what they mean.I tried to get one to look at it but no luck...they should be in the manual though

I had the same problem. I unplugged the relays from the fuse/relay box under the bonnet. (Top left side) and replaced them. The problem disappeared. (2001 Prius 109,000 miles)

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