Safety belts work for everyone, including pregnant women. Like all occupants, they are more likely to be seriously injured if they do not wear safety belts.

A pregnant woman should wear a lap-shoulder belt, and the lap portion should be worn as low as possible, below the rounding, throughout the pregnancy.
The best way to protect the fetus is to protect the mother. When a safety belt is worn properly, it is more likely that the fetus will not be hurt in a crash. For pregnant women, as for anyone, the key to making safety belts effective is wearing them properly.
Rear Safety Belt Comfort Guides
Safety Belt ExtenderReporting Safety Defects to the United States Government
If you believe that your vehicle has a defect which could cause a crash or could
cause injury or death, you should immediately inform the National Highway Traffic
Safety Administration (NHTSA) in addition to notifying General Motors.
If NHTSA receives similar complaints, it may open an investig ...
Drive Belt Installation
Special Tools
EN-955 Locking Pins
EN-48488 Holding Wrench
For equivalent regional tools, refer to Special Tools.
Note: Ensure that the drive belt tensioner is held with EN-955?E
locking pin.
Install the drive belt.
Move the drive belt tensioner clockwise until EN- ...
Transmission Adaptive Functions
The 6T30/40/45/50 transmission utilizes a line pressure control system during
upshifts to compensate for the normal wear of transmission components. As the apply
components within the transmission wear or change over time, shift time (the time
required to apply a clutch) increase or decreases. ...