! & headlight level alert

neon8s · 06-18-2008, 10:59 PM

I have a 2005 prius, pkg #6 w/ nav system.
The not to be ignored red ! came on with the nav
system showing the headlight level alert.
A dealer visit was not productive as they
could only reset the alert. It happened again today.
We revisit the dealer tomorrow. They say Toyota
has no info about it. The car works fine.
Nothing I can trace sets the alert off.
I feel I am not alone with this
problem. Any help would be appreciated.
Thanks

Bill Merchant · 06-19-2008, 12:09 AM

Hi neon8s, welcome to PriusChat!

Look at this PDF. Does this seem like your problem?

**efusco** · 06-19-2008, 01:23 AM

Yup, Bill's nailed it. That sensor needs to be replaced...should be a warranty item for an '06.

neon8s · 06-24-2008, 12:21 PM

Thanks!
I went to the dealer, showed him your input, they replaced the sensor.
No problems after ~ 300mi.http://priuschat.com/forums/images/smilies/smile.gif
It's nice having experts around......and I don't mean the dealer!

Bill Merchant · 06-25-2008, 03:18 AM

I'm glad you got the problem fixed. It's amazing how we, focused on one car, can be so much more aware than some dealers with open access to all Toyota knowledge.

darelldd · 07-25-2008, 12:37 AM

it isn't rocket science to make a weatherproof enclosure. Grr. I can't believe this is still happening on the '06's!

landesjoe · 04-03-2009, 11:39 AM

Do you know what the resistance reading on a working module should be?

kenmce · 10-14-2009, 06:18 PM

Quote:

Originally Posted by landesjoe

Do you know what the resistance reading on a working module should be?

My impression is that six volts comes in on one side, an amount which is less than six volts comes out the other side without variation, and the signal coming out the center pin varies with the load in the back. I suspect that if the signal coming out the other side pin drops below a certain level the car assumes the sensor or a wire has failed in the open position, and if it goes up to a full six volts it assumes a short.

ormero8945 · 10-15-2009, 08:14 AM

Neon8s, did they warranty the sensor on your 2005, or did they charge you for it?

06-18-2008, 10:59 PM	#1
neon8s Junior Member Join Date: Jun 2008 Location: Milwaukee, WI Posts: 4 My Car: 2005 Prius Model: Package: #6 Thanks: 0 Thanked 0 Times in 0 Posts Friends: 0	! & headlight level alert I have a 2005 prius, pkg #6 w/ nav system. The not to be ignored red ! came on with the nav system showing the headlight level alert. A dealer visit was not productive as they could only reset the alert. It happened again today. We revisit the dealer tomorrow. They say Toyota has no info about it. The car works fine. Nothing I can trace sets the alert off. I feel I am not alone with this problem. Any help would be appreciated. Thanks

06-19-2008, 12:09 AM	#2
Bill Merchant absit invidia Join Date: May 2005 Location: USA \| Oregon \| Portland area \| 97004 \| Posts: 4,100 My Car: 2007 Prius Model: Package: #5 Thanks: 18 Thanked 10 Times in 8 Posts Friends: 60	Re: ! & headlight level alert Hi neon8s, welcome to PriusChat! Look at this PDF. Does this seem like your problem?

06-19-2008, 01:23 AM	#3
efusco Troll Slayer Join Date: Nov 2003 Location: Nixa, MO Posts: 17,231 My Car: 2004 Prius Model: Package: #9 Thanks: 49 Thanked 249 Times in 148 Posts Friends: 37	Re: ! & headlight level alert Yup, Bill's nailed it. That sensor needs to be replaced...should be a warranty item for an '06.

06-24-2008, 12:21 PM	#4
neon8s Junior Member Join Date: Jun 2008 Location: Milwaukee, WI Posts: 4 My Car: 2005 Prius Model: Package: #6 Thanks: 0 Thanked 0 Times in 0 Posts Friends: 0	Re: ! & headlight level alert Thanks! I went to the dealer, showed him your input, they replaced the sensor. No problems after ~ 300mi.http://priuschat.com/forums/images/smilies/smile.gif It's nice having experts around......and I don't mean the dealer!

06-25-2008, 03:18 AM	#5
Bill Merchant absit invidia Join Date: May 2005 Location: USA \| Oregon \| Portland area \| 97004 \| Posts: 4,100 My Car: 2007 Prius Model: Package: #5 Thanks: 18 Thanked 10 Times in 8 Posts Friends: 60	Re: ! & headlight level alert I'm glad you got the problem fixed. It's amazing how we, focused on one car, can be so much more aware than some dealers with open access to all Toyota knowledge.

07-25-2008, 12:37 AM	#6
darelldd Prius is our Gas Guzzler Join Date: Jan 2006 Location: Northern CA Posts: 5,336 My Car: 2006 Prius Model: Package: #6 Thanks: 18 Thanked 44 Times in 32 Posts Friends: 12	Re: ! & headlight level alert it isn't rocket science to make a weatherproof enclosure. Grr. I can't believe this is still happening on the '06's!

04-03-2009, 11:39 AM	#7
landesjoe Junior Member Join Date: Mar 2009 Location: Oregon Posts: 5 My Car: 2006 Prius Model: Package: #6 Thanks: 0 Thanked 0 Times in 0 Posts Friends: 0	Re: ! & headlight level alert Do you know what the resistance reading on a working module should be?

10-15-2009, 08:14 AM	#9
ormero8945 Junior Member Join Date: Mar 2009 Location: Lancaster, pa Posts: 1 My Car: 2005 Prius Model: V Package: #5 Thanks: 2 Thanked 0 Times in 0 Posts Friends: 0	Re: ! & headlight level alert Neon8s, did they warranty the sensor on your 2005, or did they charge you for it?

LinkBacks (?) LinkBack to this Thread: http://priuschat.com/forums/gen-ii-prius-care-maintenance-troubleshooting/49339-headlight-level-alert.html
Posted By	For	Type	Date
maintenance: Blogs, Photos, Videos and more on Technorati	This thread	Refback	06-20-2008 02:16 PM

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Headlight level sensor corroded?	timg	Gen II Prius Care, Maintenance and Troubleshooting	19	08-13-2009 07:38 PM
Alert Light Help	Tancard	Gen II Prius Care, Maintenance and Troubleshooting	2	01-15-2008 11:02 AM
Smug Alert!	Skywalker	Environmental Discussion	2	01-08-2008 07:45 PM