Chevrolet Equinox 2026 — technical service bulletin
Bulletin 661.20 · NHTSA communication 11031788 · issued Apr 14, 2026
Technical service bulletin
communication type
Unknown OR Other
component
2026
model years
2
vehicle entries
Official summary
• This update contains a required software change to help improve the overall software update and diagnostics process. Be sure to install this update to be able to receive future software updates. • Improves traction and stability control when accelerating or on uneven terrain. • Improves braking and stopping performance on low-traction surfaces. • Improves the performance of assisted braking features.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.