Towing Equipment - GMC Sierra Hybrid 2011 Owner's Manual

9-10 Driving and Operating
Use the following charts to determine how much the vehicle can weigh, based upon the vehicle model and options.
Vehicle
2WD 6.0 L V8
4WD 6.0 L V8
*The Gross Combination Weight Rating (GCWR) is the total allowable weight of the completely loaded vehicle and
trailer including any passengers, cargo, equipment and conversions. The GCWR for the vehicle should not be
exceeded.

Towing Equipment

Trailer Brakes
If a trailer is being towed that has
trailer brakes and the trailer brakes
are manually applied while driving
slower than 40 km/h (25 mph), the
vehicle may go into auto stop mode
Axle Ratio Maximum Trailer Weight
3.08 2 767 kg (6,100 lbs)
3.08 2 676 kg (5,900 lbs)
even if the brakes are not being
pressed. Using the trailer brake
system manually can make the
hybrid vehicle perform as if the
brake pedal in the vehicle is being
pressed. The trailer brake operation
check will still work. If the trailer
brakes are manually applied for
an extended period of time, the
GCWR*
5 443 kg (12,000 lbs)
5 443 kg (12,000 lbs)
SERVICE BRAKE SYSTEM
message comes on in the Driver
Information Center. The message
goes off after the trailer brakes have
been released. No other action is
necessary. For more information,
see Towing Equipment in the
owner manual.