There may be a GCW Overweight message displayed on the Driver Information Center of some 2022-2025 Silverado 1500, Sierra 1500; and 2024-2025 Silverado 2500HD/3500HD and Sierra 2500HD/3500HD trucks equipped with the In-Vehicle Trailering App (RPO UET). The message appears only when towing a trailer. (Fig. 11)
Fig. 11
With the Gross Combined Weight (GCW) Alert feature turned on using the trailering application on the infotainment screen, the GCW is determined once the customer has driven the vehicle long enough to acquire data to calculate the total mass of the vehicle and trailer. The feature does not actually measure the loaded weight of the vehicle or trailer. It uses vehicle data to estimate these weights.
If it’s estimated that the combined weight of the vehicle and the trailer may exceed the vehicle’s Gross Combined Weight Rating (GCWR), it will trigger the alert. However, it does not mean the vehicle is overloaded. The message is just a reminder that the GCW should be checked on an actual scale.
The GCWR for the vehicle is on the Trailering Information Label. (Fig. 12) The weight of the loaded vehicle and trailer, including passengers and cargo, cannot exceed the GCWR.
Note: Always verify that the weight of the vehicle, vehicle contents, trailer, trailer contents and trailer tongue are below all of the maximum weight ratings.
Fig. 12
Trailering App
The GCW feature as well as a number of other trailer settings can be adjusted using the trailering app. (Fig. 13) The Status View shows the status information for the active trailer profile. Each section provides high-level information. Select a section to open up a new screen with additional information or options. Open the Weight screen to turn the GCW feature on/off.
Fig. 13
For more details, refer to #PIC6572.
Thanks to Ted Luczak
