Or the dolt alarm. 
Another Hidden Feature...
Racer
Joined: Apr 2004
Posts: 378
Likes: 1
From: Fremont NH
My 89 has the light..
I closed my doors after pulling in the garage and shut the garage light off and noticed a rather bright glow under the rear of the car.. cool option. I goes off when the interior lights go off..
Not sure if it's a year specific option or a 'light group' option..
I closed my doors after pulling in the garage and shut the garage light off and noticed a rather bright glow under the rear of the car.. cool option. I goes off when the interior lights go off..
Not sure if it's a year specific option or a 'light group' option..
Team Owner
Joined: Dec 1999
Posts: 34,873
Likes: 487
From: Lacey WA RVN 68-69
NCM Sinkhole Donor
What's interesting is that the light housing under the back of the C4 is the same housing used for the license plate lamp on the C5. The bulb is a 194 so if the light doesn't work , try a replacement bulb.
I believe that all C4's had the rear lamp by the spare tire as standard equipment. There was no specific lighting group or other option that got the light. The only possible difference would be 1994-96 C4's that got the run flat tires as an option (RPO WY5) as they didn't get a spare tire or carrier.
I believe that all C4's had the rear lamp by the spare tire as standard equipment. There was no specific lighting group or other option that got the light. The only possible difference would be 1994-96 C4's that got the run flat tires as an option (RPO WY5) as they didn't get a spare tire or carrier.
Safety Car
Joined: Jun 2006
Posts: 3,629
Likes: 28
From: FL
What's interesting is that the light housing under the back of the C4 is the same housing used for the license plate lamp on the C5. The bulb is a 194 so if the light doesn't work , try a replacement bulb.
I believe that all C4's had the rear lamp by the spare tire as standard equipment. There was no specific lighting group or other option that got the light. The only possible difference would be 1994-96 C4's that got the run flat tires as an option (RPO WY5) as they didn't get a spare tire or carrier.
I believe that all C4's had the rear lamp by the spare tire as standard equipment. There was no specific lighting group or other option that got the light. The only possible difference would be 1994-96 C4's that got the run flat tires as an option (RPO WY5) as they didn't get a spare tire or carrier.
Race Director
Joined: Oct 2005
Posts: 11,776
Likes: 182
From: Rolla Missouri
2021 C4 of the Year - Unmodified Finalist
St. Jude Donor '10 thru '25
Originally Posted by c4cruiser;
The only possible difference would be 1994-96 C4's that got the run flat tires as an option (RPO WY5) as they didn't get a spare tire or carrier.
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Instructor
Joined: Apr 2007
Posts: 105
Likes: 0
From: FL
My 92 DOES have one. It's lower and has a different bracket, about a 1/2" higher than the lowest part of the bumper a hair to the right of center. I didn't know it was there either! Doesn't work, but soon will. Here's a pic.
Melting Slicks
Joined: Jun 2005
Posts: 3,077
Likes: 85
From: Everyone needs something to believe in, I believe I'll have another beer. Wisconsin
Safety Car
Joined: Jun 2006
Posts: 3,629
Likes: 28
From: FL
The picture helped verify my 93 does not have it, the bracket is there but no lamp. So far it seems like 92 may have been the last year, I'll ask my son-in-law to look at his 92 and report his finding.
Safety Car
Joined: Jun 2006
Posts: 3,629
Likes: 28
From: FL
I looked it up on the parts CD and see two lamps listed, PN 16519986 fits early cars through 1990, PN16509351 fits 91 & 92, no lamp is listed for 93 and newer.
The lamp is still available from GMPD and is only $8, if I can find a pigtail connector in the harness I may try adding it to my 93.
The lamp is still available from GMPD and is only $8, if I can find a pigtail connector in the harness I may try adding it to my 93.
Team Owner
Joined: Jun 2005
Posts: 46,295
Likes: 2,596
From: Northern, VA
St. Jude Donor '15
"In honor of jpee"
You're right Larry! First time I noticed that was in the Corvette! Drove me nuts thinking something was wrong, too.
So, NOW are you impressed with your great car?
So, NOW are you impressed with your great car?
Race Director
Joined: Oct 2005
Posts: 11,776
Likes: 182
From: Rolla Missouri
2021 C4 of the Year - Unmodified Finalist
St. Jude Donor '10 thru '25
