Engine Power Messages
ENGINE POWER IS REDUCED
This message displays when the engine power is being reduced to protect the engine from damage.
There could be several malfunctions that might cause this message.
Reduced engine power can affect the vehicle's ability to accelerate.
If this message is on, but there is no reduction in performance, proceed to your destination.
The performance may be reduced the next time the vehicle is driven.
The vehicle may be driven at a reduced speed while this message is on, but acceleration and speed may be reduced. Anytime this message stays on, take the vehicle to your dealer for service as soon as possible.
See also:
Shocks and Struts
Shocks and struts help aid in control
for a smoother ride.
- Signs of wear may include
steering wheel vibration,
bounce/sway while braking,
longer stopping distance,
or uneven tire wear.
- ...
Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will
check the engine, transmission, antilock brakes, and major vehicle systems.
It also checks the tire pressures, if the v ...
Security
OnStar provides services like Stolen Vehicle Assistance, Remote Ignition Block,
and Roadside Assistance, if the vehicle is equipped with these services. OnStar
can unlock the vehicle doors remotel ...






