There are 4 stored owner reports matching the powertrain & transmission leading-label group for the 2012 Chevrolet Suburban in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 4 of 4 matching reports.
Open the full vehicle complaint log (all categories)MY AUTO GEAR SHIFT DISINGAGED FROM THE TRANSMISSION THE CAR STARTED MOVING AS I WAS TRYING TO GET INTO THE DRIVER SEAT WITH DRIVER DOOR CATCHING THE TREE LIMBS AND OPENING THE DOOR AND ME HOLDING ONTO THE INSIDE DOOR HANDLE BROOKE AND I FELL ONTO THE GROUND WHEN THE CAR STOPPED BY BACKING OVER THE CURB AND HITTING ANOTHER TREE. THERE IS A BUSHING HOLDING THE CABLE TO TRANSMISSION LEVER AND MY AUTO TRANSMISSION SHOP AND LOCAL CHEVY DEALER HAVE BOTH TOLD ME THE FAULTY CABLE CONNECTOR GETS BRITTLE AND BREAKS. NO WAY TO SAFELY DRIVE AS I CANNOT MOVE.
THE TRANSMISSION STRUGGLES TO SWITCH GEARS PROPERLY. IT IS MORE NOTICEABLE IN THE CITY RATHER THAN THE HIGHWAY. HOWEVER, THE SLIGHT HILLS MAKE IT WORSE.
WHILE DRIVING THE CAR WHEN IT WAS COLD, AND RUNNING FOR ABOUT 10 TO 15 MINUTES, WENT ON THE FREEWAY AND WHILE DE ACCELERATING, THE TRANSMISSION JERKED AND LOCK FOR A BRIEF SECOND, AND FELT LIKE SOMEONE HIT YOU IN THE BACK WITH A BASEBALL BAT. IT ONLY DOES THIS WHEN THE CAR IS STARTED FIRST THING IN THE MORNING OR EVENING. WHEN THE CAR IS COLD. THIS GIVES A FALSE SENSE OF BREAKING WHILE EXITING A FREEWAY AS THE TRANSMISSION LOCKS AND FEELS LIKE IT IS GOING TO LOCK ALL THE GEARS AND THROW YOU INTO THE WINDSHIELD. IT IS LIKE A ROLLER COASTER RIDE AT END AND THROWING YOU FORWARD. OR LIKE SOMEONE HIT YOU WITH A BASEBALL BAT. DEALER UNABLE TO FIX PROBLEM TO THE DEALER AND THEY TRIED TO REPROGRAM THE TRANSMISSION IT DID NOT WORK. STILL HAVING ISSUES AND SUBARU OF AMERICA TOLD ME, THAT THEY HAVE MANY TECHNICAL ISSUES WITH THE POWER TRAIN AND NOT SURE WHICH ISSUE THIS APPLIED TO. *TR
WHEN THE CAR IS COLD AND WENT ON THE FREEWAY AND AFTER ABOUT 20 TO 30 MINUTES OF DRIVING WHEN EXITING THE FREEWAY, THE TRANSMISSION, MAKES A CLUNK SOUND AND DOWNSHIFTS AND JERKS THE WHOLE CAR AND IT FEELS LIKE YOU ARE GOING THROUGH THE WINDSHIELD AND CAUSES WHIPLASH LIKE EFFECTS. LIKE SOMEONE HIT YOU IN THE BACK WITH A BASEBALL BAT. TOOK CAR IN TO SUBARU DEALER THEY TRIED REPROGRAMMING BUT IT DID NOT WORK. THIS IS A VERY SERIOUS SAFETY ISSUE THAT NEEDS TO BE ADDRESSED AND SUBARU DOES NOT HAVE ANY ANSWERS. *TR
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.