Q: Q: Reduced Power Light

asked by on

Reduced Power light symbol. The truck is shutting down while driving, steering wheel locks up, and all power goes off for about five minutes and then is able to restart. Check engine remains on and begins to idle rough. This has occurred 5 times took to shop and they said needed a new battery, so replaced it has happened three more times since. Chevy forums suggest throttle body but I've also been told alternator. Is this even worth the repair? Thank you!

My car has 107000 miles.
My car has an automatic transmission.

Hello, thank you for writing in. The Reduced Power Warning Light will illuminate for several reasons. If the engine’s computer detects an issue that can be detrimental to the engine, it will automatically reduce the power to make sure no damage is done (also known as "limp mode"). The reduced power light will also illuminate if the engine is suffering from an actual loss in power. This issue may be alternator, fuel, spark, or electrical in nature. Luckily the alternator can be tested before you spend money on a new one. As well as the throttle body can be cleaned relatively easily at home. Only further testing will tell. With the age and the mileage on your vehicle, the repairs should be well worth having done. Contact our service department for more diagnostic help and to schedule an appointment.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Q: Reduced Power Light

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Q: White smoke from tailpipe

Your engine is getting coolant into it and producing the white smoke out the tail pipe. The coolant could be getting into the motor from the intake, head gaskets, or head crack. The system would need to be checked to...

Q: reduced power and a question with the throttle body.

You got a loss of power due to a fault with the system closing the throttle as a built in safety factor. The reduced power indicator is telling you that it went in to a failure mode and caused the...

Q: Error message of reduced engine power is on and truck won't start.

Hi there. The reduced power light is on for one or many things that could be wrong with engine, transmission, or fuel system. First check the computer for any possible codes that could be shown up for the light to...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.