10R80 transmission hard shift and gear drop
POWER TRAIN
94 NHTSA complaints · 2025-04 → 2025-08 (sample of 200 most-recent of 1835 total)
“10r80 Automatic transmission. Randomly hunts for gears, often suddenly switches to Neutral before slamming into gear, sometimes loses gears on the highway, after a stoplight/sign or in the middle of intersections leading to a temporarily stalled vehicle in high traffic areas.…”
“The transmission randomly drops out of gear while driving. Most cases its a 2-3 shift or 3-4 shift. But its almost caused me to be rear ended twice. Its random and shifts normal most of the time. After doing research on the 10r80 I've seen muiltiple complaints on the issue. Its…”
“At or around 85,000 miles, I noticed my vehicle hesitating going into 3rd or 4th gear. Shortly thereafter, the vehicle began hard shifting into that 3rd/4th gear. Occasionally, the vehicle would lunge forward unexpectantly during this gear shift change. There have been several…”

