NHTSA Complaint #11223017 — 2015 CHEVROLET SUBURBAN

1) INTERMITTENTLY WHEN TURNING VEHICLE AT SLOW SPEEDS, THERE IS SUDDEN LOSS OF STEERING AND ELECTRIC POWER STEERING VIOLENTLY BOUNCING THE WHEEL BACK TO NEUTRAL POSITION WHEN ATTEMPTING TO STEER LEFT OR RIGHT. THERE IS ALSO SUDDEN LOSS OF ELECTRICITY, ENGINE TURNS OFF, REQUIRING TO SHIFT TO PARK AND RESTART ENGINE. THIS ISSUE USUALLY OCCURS AFTER RAIN OR AFTER CAR WASH (WATER ENTERING SHARK FIN ANTENNA) 2) INTERMITTENT COMPLETE POWER LOSS THROUGHOUT THE VEHICLE (OCCURS ESPECIALLY AFTER RAIN - WHEN SHARK FIN ANTENNA GETS FILLED WITH WATER) AND FEELS LIKE BATTERY IS SUDDENLY COMPLETELY DEAD. SOMETIMES IT CAN NOT BE JUMP STARTED IMMEDIATELY, AND AFTER MORE THAN AN HOUR, IT MAY BE JUMP STARTED. 3) WATER LEAKING INTO THE FRONT LEFT CORNER OF ROOF (DRIVER SIDE) AFTER RAIN - AGAIN DUE TO SHARK FIN ANTERNNA LEAK. THERE ARE MANY OWNERS OF CHEVY SUBURBAN/TAHOE, SILVERADO, GM TRUCK REPORTING EXACTLY SAME PROBLEMS ALL OVER INTERNET AND ON YOUTUBE. THIS PROBLEM STILL EXISTS AFTER THE RECENT 09/07/2018 RECALL 18V586000 FIX. THIS RECALL DID NOT HELP SOLVE THIS PROBLEM. IN MANY YOUTUBE VIDEOS PEOPLE REPORT HAVING FIXED THIS ISSUE BY REPLACING BATTERY POSITIVE AND GROUND CABLES, AS WELL AS BY REMOVING THE SOUND DAMPENING MATERIAL TRAPPED UNDER G218 GROUND ON THE DRIVER SIDE OF DASH (PEOPLE HAVE MENTIONED ABOUT INCREASED RESISTANCE ACROSS G218 GROUND). EXAMPLE VIDEO: HTTPS://WWW.YOUTUBE.COM/WATCH?V=CWAMOPHNXG8