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Old 12-10-2021, 05:40 AM   #1
AVANTI R5
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Default GM Issues Technical Warning that Radar Detectors Can Damage C8’s Side Mirror Glass


Quote:

While it looks like something has infected this C8 Corvette’s driver-side door mirror, the damage was actually caused by an aftermarket radar detector.

General Motors recently issued a Technical Bulletin over the mirror issue which they say was caused by the installation of an aftermarket radar detector in the vehicle. The Techlink article says the mirror damage is caused by a higher than acceptable voltage which damages the door mirror’s defrosting system.

The Techlink article shows an illustration of the rearview mirror and they suggest if the side mirror is looking like the one above, the technician should look for the installation of a jumper harness that was added to the interior rearview mirror’s X1 connector to power the radar detector. The X1 connector is located behind the front cover on the rearview mirror.

The fix is to disconnect the jumper harness and replace the damaged outside mirror, however, this must be authorized by the owner as vehicle damage resulting from aftermarket devices is not covered under warranty.
Quote:
Driver’s Outside Rearview Mirror Appearance

The driver’s outside rearview mirror on some 2020-2022 Corvettes may have poor operation and appearance, including numerous lines shown in the mirror and a dim reflection at all times.

The poor appearance may be caused by the installation of an aftermarket radar detector in the vehicle. Depending on the installation location, the aftermarket electrical device may cause higher voltage to the mirror.

If the damaged mirror appearance is shown, check for the installation of a jumper harness to power the radar detector added to the mirror’s X1 connector. The connector is located behind the front cover of the inside rearview mirror. (Fig. 15)



Disconnecting the jumper harness, and replacing the damaged outside rearview mirror due to the jumper harness, must be authorized by the customer. Vehicle damage resulting from aftermarket devices is not covered under warranty.

For additional information, refer to Bulletin #21-NA-251.
https://gm-techlink.com/?p=15563
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Old 12-10-2021, 06:43 PM   #2
Dex
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Poor GM just can't win with techy mirrors. Remember the auto tinting side mirrors from that would die after a few years and look like a 24/7 sunset?
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Old 12-11-2021, 12:30 AM   #3
White out
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Lolol
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Old 12-13-2021, 05:19 PM   #4
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I'm torn on this one. On one hand, they produce a car to work with OEM components. Imagine having to test every aftermarket device like radar detectors, etc to make sure it doesn't **** something over.

On the flip side. I think GM only had this problem and it seems silly.

Realistic fix. Buy a C7 corvette
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Old 12-13-2021, 05:26 PM   #5
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Didn't know the C8 had some fancy defrosting side mirrors. Good for the 2 people who drive their vette in a snow storm I guess.
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Old 12-13-2021, 05:28 PM   #6
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Quote:
Originally Posted by bemani View Post
Didn't know the C8 had some fancy defrosting side mirrors. Good for the 2 people who drive their vette in a snow storm I guess.
It doesn’t need to be snowing to freeze over a side view mirror. Also, you’d be surprised at the stupidity of people who overspend on a vehicle they can’t afford that shouldn’t be a year around driver given the conditions they live in.
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Old 12-13-2021, 08:11 PM   #7
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Quote:
Originally Posted by godfather2112 View Post
I'm torn on this one. On one hand, they produce a car to work with OEM components. Imagine having to test every aftermarket device like radar detectors, etc to make sure it doesn't **** something over.

On the flip side. I think GM only had this problem and it seems silly.

Realistic fix. Buy a C7 corvette
What’s funny is this would be the 2nd trip I’d make (if it was 6MT). The first would be to get PPF. The 2nd would be to hardwire a V1 in. Sorry but a lot of mafk Vette drivers use radar detectors. F’ GM
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Old 12-13-2021, 09:16 PM   #8
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Quote:
Originally Posted by bemani View Post
Didn't know the C8 had some fancy defrosting side mirrors. Good for the 2 people who drive their vette in a snow storm I guess.
Corvettes are and have always been daily drivers. This is nothing new.
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Old 12-14-2021, 01:09 PM   #9
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I was out on the road today and saw two C7's and a C6 - ambient was low 30's this morning, and now it's up to about 45; it's mid-December in New England and this isn't a strange site (still seeing Mustang, Camaros etc. as well). They will drive them until the snow really flies, as would I.
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Old 12-14-2021, 11:09 PM   #10
subyski
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Heated mirrors are great for any condensation.

I guess an alternative is to wire to the fuse panel to avoid tying into any existing systems.
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Old 12-15-2021, 11:58 AM   #11
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Yeah I use mine all the time in the morning fog. The mirrors on the Focus condense water almost instantly when the humidity is high.
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Old 12-16-2021, 03:19 PM   #12
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Quote:
Originally Posted by godfather2112 View Post
Also, you’d be surprised at the stupidity of people who overspend on a vehicle they can’t afford that shouldn’t be a year around driver given the conditions they live in.
What makes the C8 Vette unsuitable for year round driving? Does it not have a heater?
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Old 12-16-2021, 03:32 PM   #13
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Quote:
Originally Posted by Doobie Scoo View Post
What makes the C8 Vette unsuitable for year round driving? Does it not have a heater?
There are snow tires available for them, I don't see the issue if someone wants to drive one in the winter "you do you/to each their own" is my mentality.
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