That's correct. The top speed of the vehicle is limited by the computer (PCM). HTH. - Jim
It just started happening so does the computer need to be reset because the top speed on the dash is 140 I believe
I don't believe there's anything wrong. But you can check with your local Cadillac Dealer to be sure. The speedometer on my '08 Grand Marquis reads to 120 MPH but I know that the computer won't allow the car to go that fast. My '02 Impala had a 140 MPH speedometer but the computer would only allow it to go 125 MPH. These speed controls are in place for both safety and law enforcement. My Impala was a retired police car so it would go to 125 MPH. Regular Impalas are speed limited to 112 MPH. Please let us know what you find out from the Cadillac Dealer. HTH. -Jim
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