Display/FOB issues
Thread Starter
Pro
Joined: Mar 2011
Posts: 701
Likes: 79
From: 40 miles N. of the Everglades
Display/FOB issues
I've had service twice on display issues, first was flash and replace module a year ago due to a blank screen at start, subsequently came on. Second was a month ago, both screens were our after a three hour trip, came back later, again another reprogram. Now the system won't recognize the FOB more than a foot away, even displaying a message to insert it into the column. Other GM cars works with the FOB in my pocket? Something new with programing?
16 base 7M
16 base 7M
Thread Starter
Pro
Joined: Mar 2011
Posts: 701
Likes: 79
From: 40 miles N. of the Everglades
Safety Car
Joined: Dec 2012
Posts: 3,839
Likes: 1,856
From: St. Louis Metro East IL
Bad "new" fob batteries seem to be fairly common. Maybe try another battery? Have not seen any threads related to bad fobs - except for one chewed up by a dog. All apparently resolved by a good battery.
Safety Car
Joined: Dec 2012
Posts: 3,839
Likes: 1,856
From: St. Louis Metro East IL
All I'm suggesting is that sometimes a new battery has been on the shelf for a while or is just plain defective. Test the battery with a volt meter, try another battery, or swap batteries between your fobs. I bought 12 brand name batteries online and a couple were dead. I change all fob batteries whenever one gives problems like decreased range. 4 cars / 9 fobs.
It has been suggested to avoid the brand with cross hatched back surface.
If it does turn out to be a bad fob they are available. At least you won't have to get a key laser cut. You'll need to delete all fobs from the car's memory so they can be assigned as #1 and #2. Just adding a 3rd fob makes it #3 which won't have seat memory functions.
Good luck.
It has been suggested to avoid the brand with cross hatched back surface.
If it does turn out to be a bad fob they are available. At least you won't have to get a key laser cut. You'll need to delete all fobs from the car's memory so they can be assigned as #1 and #2. Just adding a 3rd fob makes it #3 which won't have seat memory functions.
Good luck.
Last edited by RonC7; Aug 16, 2018 at 09:27 PM. Reason: .
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Joined: Jun 2001
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From: Jacksonville Florida BWO Dayton, Cincinnati, Bloomsbury NJ, Cincinnati
2015 C7 of the Year Finalist
All I'm suggesting is that sometimes a new battery has been on the shelf for a while or is just plain defective. Test the battery with a volt meter, try another battery, or swap batteries between your fobs. I bought 12 brand name batteries online and a couple were dead. I change all fob batteries whenever one gives problems like decreased range. 4 cars / 9 fobs.
It has been suggested to avoid the brand with cross hatched back surface.
If it does turn out to be a bad fob they are available. At least you won't have to get a key laser cut. You'll need to delete all fobs from the car's memory so they can be assigned as #1 and #2. Just adding a 3rd fob makes it #3 which won't have seat memory functions.
Good luck.
It has been suggested to avoid the brand with cross hatched back surface.
If it does turn out to be a bad fob they are available. At least you won't have to get a key laser cut. You'll need to delete all fobs from the car's memory so they can be assigned as #1 and #2. Just adding a 3rd fob makes it #3 which won't have seat memory functions.
Good luck.
Elmer
Thread Starter
Pro
Joined: Mar 2011
Posts: 701
Likes: 79
From: 40 miles N. of the Everglades
Busy Woodward Dream Cruise last week.... New battery checked 3+ volts, gently cleaned contacts and and increased the tension.. back to normal operation. The display after 2 service visits initially took a couple seconds to appear, now back to normal. I was thinking this might be related. Thanks for the advice! and
Last edited by 40flier; Aug 19, 2018 at 08:14 AM.
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