One Fog light failure , TPMS error and key remote not working

[William Papadopoulos]

Help! Does anyone know why a fog light will go out at the same time as the TPMS error message will appear on the dash? Accompanied by the lack of an ability to open and close the doors with the key fob

remote?

 

Dealer  cannot figure it out . Could it be a relay? How are these all related to each other ? Fog light will come back on once the error clears somehow. This issue happens two or three times a week randomly. 2013 Tahoe Z71 4 WD. Thank you !

[Jsdirt]

The BCM (body control module) is the one common denominator between all those systems.

 

Find a local garage to repair it, preferably one that's good at electrical troubleshooting - NOT the dealer. You'll save yourself thousands of dollars and one gigantic headache.

[William Papadopoulos]

Thank you!

[SILVER SLED]

I believe the remote door lock receiver and tire pressure monitor receiver are the same module.  If it goes bad you will loose key fob operation and tire pressure monitoring.  Not sure about one fog light.  
 

What code occurs when this happens?

[William Papadopoulos]

I don’t have a code reader to tell but the dash says “service tire monitor system” When the fog light goes out and the key fob fails 

 

the fog light will come back on and all will work fine later on for no apparent reason

[SILVER SLED]

Maybe take it to an autozone and have the code read.  
 

Leaning toward a chaffed wire, but....