maybe dumb question...but the little heat icon in the lower right (inside) corner of the driver's mirror...is that an indicator that is suppose to light up when the heater is on?

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2003 Pontiac Bonneville SSEI
3.8L V6 SC, 180*T (Drilled),
Custom PCM w/Perf Shift,
SLP Ceramic Coated Headers,
Thrasher Cold Air Intake,
GXP Tails, Interior Door handles, Trim pieces etc.
40th Aniv Grand Prix GTP Wheels (Very Shiny & Very Annoying )

No. It's just and etched symbol to indicate the glass is heated. Not all Bonneville mirrors have this option.

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Bose Luxury Sound System w/Touch Screen Navigation, Addition of Factory XM, 2005 MY Antenna, OnStar Upgrade (3G),
RainSense Wipers, Backup Camera, '00 Style Door Panel Courtesy Lights, Heated Washer Solvent, 2X Remote Trunk Release,
Turn Signal Mirrors, Center Console Courtesy Lamp, Rear Outboard Heated Seats, PVD Chrome 18" Factory Rims, Upgraded
Carbon Fibre Appearance Interior Trim, Highly Modified Main Body Harness, Instrument Panel, Door, Door Panel & Headliner
Wiring Harnesses, Custom Fuse Box & Tire and Loading Information Decals, Additional Acoustic Insulation

Cool, thanks, mine for some reason has heated mirrors but not heated seats.

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2003 Pontiac Bonneville SSEI
3.8L V6 SC, 180*T (Drilled),
Custom PCM w/Perf Shift,
SLP Ceramic Coated Headers,
Thrasher Cold Air Intake,
GXP Tails, Interior Door handles, Trim pieces etc.
40th Aniv Grand Prix GTP Wheels (Very Shiny & Very Annoying )

Yes, it kind of doesn't make sense. The SE did have a leather, heated seat option but did not ever come with heated mirrors (that I'm aware of). I believe the SLE came with heated mirrors but did not necessarily have heated and/or leather seats. Trying to figure out how manufacturers come up with options and option packages sometimes gives me a headache.

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Bose Luxury Sound System w/Touch Screen Navigation, Addition of Factory XM, 2005 MY Antenna, OnStar Upgrade (3G),
RainSense Wipers, Backup Camera, '00 Style Door Panel Courtesy Lights, Heated Washer Solvent, 2X Remote Trunk Release,
Turn Signal Mirrors, Center Console Courtesy Lamp, Rear Outboard Heated Seats, PVD Chrome 18" Factory Rims, Upgraded
Carbon Fibre Appearance Interior Trim, Highly Modified Main Body Harness, Instrument Panel, Door, Door Panel & Headliner
Wiring Harnesses, Custom Fuse Box & Tire and Loading Information Decals, Additional Acoustic Insulation

I agree. If you're already heating the mirrors why not the seats? My SLE has both luckily.

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-Car Guy Carl
"Penelope" - 2003 SLE - 247k Miles
"Sydney" - 2000 Honda S2000 - 98k miles

Maybe it just shows the dysfunctionality of GM at the time?? Mine is a weird SE with heated cloth seats but no heated mirrors. Not a problem for me (even though the driver's heated seat doesn't work). Options lists can be stupid to comprehend

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'02 Pontiac Bonneville SE 108,539 miles, N/A, SSEi exhaust system, boat roller mount. Gone, but not forgotten.
'13 Buick Regal GS 102k miles, 270 hp, 295 lb/ft, ZZP intake.
(yes, there is a story behind my avatar.)

GM was in tatters when these cars was in production. My '03 Yukon has been one of the biggest disappointments I have ever owned... Engine runs great now after having $1500 of engine wiring reworked.... then hard brake lines had to be replaced front to back... then the fuel pump went aand found the steel ring holding in the assembly was rotted away... My 93 GMC Suburban was rock solid... They cut so many corners in the early to mid 2000's... The only reason I bought another Bonneville is it is hands down my favorite family friendly body style from GM and my 02 I took apart and put it back together twice so I know the layout very well. So far this one is much better than the 02... but I am just a month into it :D

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2002 SLE "Frankenbonnie" 02 engine, 04 transmission, and a 03 PCM to make everything talk. Sadly I know longer own
1993 Suburban Zombie Apocalypse Assault Vehicle (GMC Edition)
2003 Yukon Black/Charcoal cloth 4x4 POW/MIA
2003 SLE Silver/Charcoal (New Acquisition)

I was under the impression that the mirrors turned on with the when the defroster button was turned on. I don't have heated seats in my SLE, but I'm pretty sure the mirrors are heated...

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A temporary fix does not exist. It becomes a solution until it needs to be fixed again.

https://photos.google.com/album/AF1QipOYkkevV0gKTHc_8Cstuy8yS1Qyx6SiIKeTzuHy

Yes, they do. However, it does seem to make sense that if you have heated seats, you may live in a cooler climate and heated mirrors are also a good idea. GM didn't see fit to put heated mirrors in everything that got heated seats.

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Bose Luxury Sound System w/Touch Screen Navigation, Addition of Factory XM, 2005 MY Antenna, OnStar Upgrade (3G),
RainSense Wipers, Backup Camera, '00 Style Door Panel Courtesy Lights, Heated Washer Solvent, 2X Remote Trunk Release,
Turn Signal Mirrors, Center Console Courtesy Lamp, Rear Outboard Heated Seats, PVD Chrome 18" Factory Rims, Upgraded
Carbon Fibre Appearance Interior Trim, Highly Modified Main Body Harness, Instrument Panel, Door, Door Panel & Headliner
Wiring Harnesses, Custom Fuse Box & Tire and Loading Information Decals, Additional Acoustic Insulation