Guess I hit the limiter on my way home from work today.
Dash indicated 100, GPS said 98
and it just powered down for a couple of seconds then came back.
Are you running stock tires still? The limiter is set to the speed rating of the factory issued tires. If you've put aftermartket tires on, they may not have the same speed rating.
Some good info below, as lifted fron the TireRack.
Beginning in 1991, the speed symbol denoting a fixed maximum speed capability of new tires must be shown only in the speed rating portion of the tire's service description, such as 225/50R16 89S. The most common tire speed rating symbols, maximum speeds and typical applications are shown below:
M 81 mph 130 km/h
N 87 mph 140km/h Temporary Spare Tires
P 93 mph 150 km/h
Q 99 mph 160 km/h Studless & Studdable Winter Tires
R 106 mph 170 km/h H.D. Light Truck Tires
S 112 mph 180 km/h Family Sedans & Vans
T 118 mph 190 km/h Family Sedans & Vans
U 124 mph 200 km/h
H 130 mph 210 km/h Sport Sedans & Coupes
V 149 mph 240 km/h Sport Sedans, Coupes & Sports Cars
BTW, my old SS shut down at 155. What a ride......