Speed Limiting Description: Notes

A message will be displayed when the vehicle top speed has been limited to the speed indicated. The message will no longerdisplay when the speed decreases below 5 kph (3 mph) of the indicated limited speed. The limited speed is a protection forvarious propulsion and vehicle systems, such as lubrication, thermal, suspension, Teen Driver, or tires.

The ECM takes the lowest value from the following list to determine the final vehicle speed limit. The vehicle speed is notlimited when the vehicle is in Park or Neutral.

Functions that will limit the vehicle speed 

• Tire Rating
• Prop-shaft/Transfer case speed rating
• Protection from reduced lubrication
• Electric motor speed rating
• Powertrain Thermal Protection
• Diesel Exhaust Fluid legislated limits
• Valet or Teen Driver Modes
• OnStar Stolen Vehicle Feature
• Commercial Truck / Rental Vehicle Speed Limits
• Powertrain control system faults
• Braking system faults
• Damping system faults
• Leveling system faults