GMC C2500 Suburban Reduced Power light is on Inspection at your home or office.

Our certified mobile mechanics come to you 7 days a week between 7 AM and 9 PM.

Estimate price near me

Service Location

Customer Ratings

(3,013)

How A Diagnostic Works

Instantly book a certified mobile mechanic to come to you

Mechanic diagnoses the problem and quotes necessary repairs

Your vehicle is ready to go

Fair, upfront & transparent pricing for all services

Our certified mobile mechanics can come to you now.

Customer Ratings

(3,013)

Reduced Power light is on Inspection Service

How much does a Reduced Power light is on Inspection cost?

On average, the cost for a GMC C2500 Suburban Reduced Power light is on Inspection is $95 with $0 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1984 GMC C2500 SuburbanV8-7.4LService typeReduced Power light is on InspectionEstimate$114.99Shop/Dealer Price$124.99 - $132.49
1999 GMC C2500 SuburbanV8-6.5L Turbo DieselService typeReduced Power light is on InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
1983 GMC C2500 SuburbanV8-6.2L DieselService typeReduced Power light is on InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
1982 GMC C2500 SuburbanL6-4.8LService typeReduced Power light is on InspectionEstimate$94.99Shop/Dealer Price$104.99 - $112.48
1979 GMC C2500 SuburbanV8-7.4LService typeReduced Power light is on InspectionEstimate$94.99Shop/Dealer Price$105.02 - $112.55
1996 GMC C2500 SuburbanV8-7.4LService typeReduced Power light is on InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
1986 GMC C2500 SuburbanV8-6.2L DieselService typeReduced Power light is on InspectionEstimate$99.99Shop/Dealer Price$109.87 - $117.28
1995 GMC C2500 SuburbanV8-7.4LService typeReduced Power light is on InspectionEstimate$99.99Shop/Dealer Price$110.24 - $117.94
Show example GMC C2500 Suburban Reduced Power light is on Inspection prices

A Reduced Power light usually indicates a fairly serious problem with the throttle system. When this light illuminates the vehicle will often go into a “safe mode”, which will severely limit the speed of the car and in some cases will render the vehicle un-drivable.

Since the Reduced Power light can trigger for a number of different reasons, tracking down the exact cause is extremely important, if the vehicle is not properly diagnosed and repaired, the Reduced Power light will trigger again, putting the vehicle in safe mode.

How this system works:

When the vehicle’s computer detects a fault in the engine that affects its drivability, performance, transmission or emission system it will trigger the reduced power light. It will also trigger if there is an issue with the electronic throttle, the accelerator pedal or the throttle module.

When a vehicle goes into reduced power mode it will seriously impact its performance. Some vehicle will be restricted to idle speed while others restrict speed to 20-30 miles per hour. The Reduced Power trigger will save Diagnostic Trouble Codes (DTCs), which will indicate where the fault occurred. In most cases, a Restricted Power light is related to a throttle body or the connector.

Common reasons for this to happen:

  • Faulty Throttle Body: A throttle body is part of the of the air intake system which helps control the amount of air going into the engine. If a throttle body is failing the engine will not get the correct mixture of air and fuel. This can trigger the Reduced Power light as well as lead to a poor running engine. It can also trigger the Check Engine light.

  • Failing Throttle Position Sensor: The throttle position sensor tells the vehicle computer the position of the gas pedal. The computer uses this information to calculate the proper amount of air and fuel to send to the engine. The throttle position sensor also controls shifting the gears of a vehicle, which means that a faulty throttle position sensor will prevent a car from changing gears. If this part is failing, the Reduced Power light will trigger.

  • Faulty Engine Control Unit: The engine control unit is an essential component of a vehicles computer. It regulates and controls many systems, including the drive train and parts of the engine. If a fault is detected in this crucial part, it can trigger the Reduced Power light as well as the Check Engine light. This is a major issue that should be investigated as soon as possible.

  • Faulty Wiring: Exposed or damaged wires can cause issues with the any of these components and will possibly trigger the Reduced Power light. A loose wiring crimp can also be the culprit. Wiring issues can be tricky to track down so using a professional mechanic is a necessity.

  • Malfunctioning Oxygen Sensors: Oxygen sensors are responsible for measuring how rich or lean exhaust gases are leaving a vehicles combustion chamber. The vehicle’s computer uses this information to constantly adjust the amount of fuel going into the engine. A failing or dirty sensor can put too much or too little fuel into the engine. While a failing oxygen sensor will usually trigger a Check Engine light it is possible that the Reduced Power light could also trigger.

What to expect:

A top-rated mobile mechanic will come to your home or office to determine the source and cause of the Reduced Power light issue, ​and will then provide a detailed inspection report that includes the scope and cost of the necessary repairs.

How it's done:

The mechanic will inspect your vehicle's air intake system, electrical wiring and sensors, including the throttle body and oxygen sensors, along with other important components. It may be necessary for the mechanic to test drive the car to verify the complaint and provide an accurate diagnosis.

How important is this service?

The Reduced Power light only illuminates if there is a serious issue with the vehicle that must be addressed immediately. In almost all cases, the throttle or the vehicles computer will be malfunctioning which can make driving the vehicle dangerous. While it varies by manufacturer, most vehicles that go into “safe mode” will stay there until the error codes are read by a code scanner.

If the vehicle Reduced Power light illuminates the vehicle should immediately be inspected, diagnosed and repaired.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert GMC mechanics

Real customer reviews from GMC owners like you.

Excellent Rating

(3,013)

Rating Summary
2,853
79
21
10
50
2,853
79
21
10
50

Nathan

21 years of experience
298 reviews
Nathan
21 years of experience
GMC C2500 Suburban V8-7.4L - Car is not starting - Austin, Texas
Nice guy

John

10 years of experience
66 reviews
John
10 years of experience
GMC C2500 Suburban V8-7.4L - Lights (Headlamps/beams/brakes) - Chula Vista, California
John is the man!

Richard

21 years of experience
237 reviews
Richard
21 years of experience
GMC Sierra 1500 V8-6.2L - Reduced Power light is on - Cape Coral, Florida
Excellent service, timely and a big help with diagnosing issues with my vehicle.

Christopher

10 years of experience
117 reviews
Christopher
10 years of experience
GMC Sierra 1500 V8-6.2L - Starter - Tomball, Texas
Christopher was on time and did an excellent job.

Excellent Rating

(3,013)

Rating Summary
2,853
79
21
10
50
2,853
79
21
10
50
Number of GMC services completed
33143+
services done by our mechanics
TOTAL NUMBER OF EXPERT GMC MECHANICS
900+
experts on our platform

Recent articles & questions

How to Buy a Good Quality Speedometer Sensor
Modern Modern vehicles are great: they offer so many advanced features to help keep you safe on the road. The speedometer sensor is one of those great inventions – created to help you keep to a safe speed and not...
Symptoms of a Bad or Failing Coolant Recovery Reservoir
Common signs include constantly having to add coolant, visible coolant leaks, and the engine overheating.
How Long Does a Power Brake Booster Last?
When When you press the brake pedal, your car slows down and eventually stops. Most of us put little more thought into it. We know that our brake pads need to be replaced periodically, and we’ll probably need to have...

How do I program a personal entry code for the Keyless Entry Keypad to the memory feature?

They Keyless Entry Keypad allows you to enter your truck without using your keys. Your code for the keypad can also be programmed to the memory feature and move the seats to your settings. To program a personal Entry Code...

What does the charging system Warning Light mean in a Hyundai Elantra?

The charging system Warning Light is located on the instrument panel. This light illuminates when there is an issue with either the electrical charging system, or the generator. When this light comes on, you should have your vehicle serviced as...

The heater control panel don't work and the radio don't work everything else on the dash lights up all the fuses are good

Hello, thank you for writing in. The power supply needs to run to that area of the dashboard before it is divided up between the different components. Considering that two components are both having a loss of power at the...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (844) 997-3624 · hi@yourmechanic.com