General Motors has recalled about 56,000 midsize trucks because their automatic emergency braking systems can trigger for no reason. The company says it is aware of “234 field complaints in the U.S.” over the issue. Four caused accidents and three involved minor injuries.

Recalled models include the:

The company tells the National Highway Traffic Safety Administration that miscalibrated software can cause the trucks’ front cameras to trigger the automatic emergency braking system when there is no obstacle in front of the vehicle.

Because it’s a software issue, GM can fix it with a software update. But the trucks cannot download updates remotely, so owners will need to bring them to dealerships for the patch.

There is never a charge for recall repairs. Check out other Chevrolet and GMC recalls.

Many cars face at least one recall at some point in their useful lives. Some face more than one — this is the seventh recall affecting the 2015 Colorado. Manufacturers try to notify owners, but don’t always reach everyone. Find out if your car has ever been recalled at our recall center.