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.
Lap-Shoulder Belt
Safety Belt ExtenderReporting Safety Defects to General Motors
In addition to notifying NHTSA (or Transport Canada) in a situation like this,
notify General Motors.
Call 1-800-222-1020, or write:
Chevrolet Motor Division
Chevrolet Customer Assistance
Center
P.O. Box 33170
Detroit, MI 48232-5170
In Canada, call 1-800-263-3777
(English) or 1-800-263-785 ...
Inflatable Restraint Side Impact Sensor Replacement
Warning: Refer to SIR Warning in the Preface section.
Warning: Refer to SIR Inflator Module Handling and Storage Warning in the
Preface section.
Warning: Following the deployment of a side impact air bag, inspect the
following parts for damage. Replace these parts if
necessary:
Th ...
Steering Column Replacement (Right Hand Drive)
Caution: With wheels of the vehicle facing straight ahead, secure
the steering wheel utilizing steering column anti-rotation pin, steering
column lock, or a strap to prevent rotation. Locking of the steering column will
prevent damage and a possible malfunction of the SIR
system. The steering ...