2020 Buick Encore GX Problems: 1 Issues Every Owner Should Know
2020 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated May 2026
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2020 Buick Encore GX has 1 documented known issues, with 1 rated critical. The most serious is Encore GX CVT / 9-Speed Hesitation and Shudder ($0-$3,500 repair). Across all issues, repair costs range from $ to $3,500. DIY maintenance guides at au7o.io.
All 1 Known Issues
On the 2020-2024 Buick Encore GX, the 2020+ Encore GX uses either the VT40 CVT (FWD 1.2L) or the GM 9T50 9-speed (AWD 1.3L). Both have reported issues: CVT hesitates from a stop, jerks on tip-in, and growls. 9-speed has been the subject of multiple TSBs covering harsh shifts, flares, and torque converter shudder.
Common Symptoms
- hesitation from stop
- jerk on tip-in
- shudder at light throttle
- harsh shifts
How to Fix
CVT: software update via dealer (TSB 21-NA-141 and successors). 9-speed: ATF flush + reprogramming if persistent shudder; valve body or torque converter if not resolved. Many fixes were under GM's "PI" (Product Investigation) bulletins — check for active campaigns on your VIN.