2004 GMC Yukon XL Denali Recalls
A damper on the fuel rail may come loose and cause a fuel leak. A fuel leak in the presence of an ignition source may result in a fire.
The hydraulic brake booster may fail and leak fluid. The loss of fluid would cause increased steering and braking effort and a crash could occur without warning.
A problem with the hydro-boost system may reduce braking assist and slightly increase the steering effort while braking.