GM Halts Brake Assist Fix for Super Cruise SUVs
General Motors has paused a specific repair step for certain Super Cruise–equipped SUVs. The temporary hold affects 2026 model-year vehicles and stems from a December service update.
What prompted the service action
In December, GM issued Technical Service Bulletin N252521591. The bulletin described a software anomaly. That anomaly could trigger an unwanted, aggressive braking intervention.
GM instructed dealers to retain affected vehicles. Vehicles were not to be delivered, dealer-traded, released to auction, or used for demonstrations until repaired.
Scope of the suspension
A recent dealer bulletin clarified the repair is now suspended for 2026 vehicles equipped with Super Cruise. The bulletin provided no explanation or timeline for the suspension.
Filmogaz.com notes that the update specifically interrupts the corrective procedure for Super Cruise variants while other models continue to receive the fix.
Models mentioned in the original TSB
- Cadillac Escalade and Escalade ESV (Super Cruise standard on all trims)
- Chevrolet Tahoe and Suburban
- GMC Yukon and Yukon XL
- 2026 Cadillac CT5
- 2026 Chevrolet Equinox EV
- 2026 Chevrolet Silverado EV
- 2026 GMC Sierra EV
The latest bulletin narrows the suspension to the full-size SUVs with Super Cruise. Other 2026 models listed earlier will continue to receive the corrective measures.
Repair process and timing
GM estimates the remedy requires about one hour of labor. The fix involves reprogramming the vehicle through a direct connection to GM’s diagnostic system.
Dealers were previously told to hold vehicles until the software update was applied. That hold remains for units affected by the Super Cruise suspension.
Super Cruise availability by trim
- Tahoe and Suburban: Super Cruise optional on LT, RST, Premier, High Country
- Yukon and Yukon XL: Super Cruise optional on Elevation, AT4, Denali
- Yukon and Yukon XL: Super Cruise standard on AT4 Ultimate and Denali Ultimate
- Escalade and Escalade ESV: Super Cruise standard across all trims
The situation prompted headlines such as GM Halts Brake Assist Fix for Super Cruise SUVs. Owners of affected Escalade, Tahoe, Suburban, and Yukon models may face delays for the repair.
Manufacturing note
These full-size SUVs share GM’s T1 platform. They are built at GM’s Arlington plant in Texas.
GM announced last summer that Escalade production will move to the Orion plant in Michigan in the future.
Filmogaz.com will monitor developments and report updates as they become available.
