Buick Regal Sportback 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

(2,521)

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

(2,521)

Reduced Power light is on Inspection Service

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

On average, the cost for a Buick Regal Sportback Reduced Power light is on Inspection is $105 with $0 for parts and $105 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2020 Buick Regal SportbackV6-3.6LService typeReduced Power light is on InspectionEstimate$124.99Shop/Dealer Price$133.39 - $139.69
2020 Buick Regal SportbackL4-2.0L TurboService typeReduced Power light is on InspectionEstimate$104.99Shop/Dealer Price$113.41 - $119.72
2018 Buick Regal SportbackL4-2.0L TurboService typeReduced Power light is on InspectionEstimate$104.99Shop/Dealer Price$113.41 - $119.72
2019 Buick Regal SportbackL4-2.0L TurboService typeReduced Power light is on InspectionEstimate$104.99Shop/Dealer Price$113.39 - $119.68
2018 Buick Regal SportbackV6-3.6LService typeReduced Power light is on InspectionEstimate$104.99Shop/Dealer Price$113.42 - $119.75
2019 Buick Regal SportbackV6-3.6LService typeReduced Power light is on InspectionEstimate$104.99Shop/Dealer Price$113.41 - $119.72
Show example Buick Regal Sportback 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 Buick mechanics

Real customer reviews from Buick owners like you.

Excellent Rating

(2,521)

Rating Summary
2,353
98
16
14
40
2,353
98
16
14
40

Torrieanto

13 years of experience
632 reviews
Torrieanto
13 years of experience
Buick Enclave V6-3.6L - Reduced Power light is on - Riverview, Florida
He was very polite and he explained to me so I could understand why I was having the problem I was having.

Edmar

23 years of experience
246 reviews
Edmar
23 years of experience
Buick Verano L4-2.4L - Reduced Power light is on - Dallas, Texas
Edmar was very informative and explained in detail what was wrong with my vehicle.

Omar

13 years of experience
287 reviews
Omar
13 years of experience
Buick Rendezvous V6-3.4L - Tune-up - Pompano Beach, Florida
Loved him

William

19 years of experience
90 reviews
William
19 years of experience
Buick Rendezvous V6-3.5L - Brake Rotor/Disc Replacement (Rear) - Tinley Park, Illinois
William did a great job installing the brake pads and rotors. He is very knowledgeable and efficient. I highly recommend William.

Excellent Rating

(2,521)

Rating Summary
2,353
98
16
14
40
2,353
98
16
14
40
Number of Buick services completed
27731+
services done by our mechanics
TOTAL NUMBER OF EXPERT Buick MECHANICS
800+
experts on our platform

Recent articles & questions

The Best Used Cars to Buy If You’re a Plumber
Plumbers Plumbers need to carry around all manner of tools and supplies. If you’re plumbing a large building, or even a decent sized home, you’re going to need a vehicle that has quite a bit of cargo capacity. A car...
How Long Does a Headlight Bulb Last?
With With all of the different relays that are on a car, it can feel like a full-time job keeping up with them all. One of the most important safety features that a car has is properly working headlights. In...
How to Get a Wisconsin Driver's Permit
The The state of Wisconsin requires all new drivers under 18 to begin driving with an instruction permit, in order to practice safe driving under supervision before getting their full driver’s license. To receive the initial learner’s permit, you must...

How do I turn off the panic alarm?

There are two different ways to turn off the panic alarm: 1. Use the remote keyless entry (RKE) transmitter. The panic alarm button on the RKE transmitter turns on the panic alarm, and it also turns the alarm off. Press...

Using fuel and oil additives in high-mileage vehicles

People have been selling fuel and oil additives for years. If you drive a normal car, you take care of it and use high-quality fuel, and you change your oil a lot, you really don’t need to do anything except...

Car Starts And It Shifts Gears , But Won't Reverse , And In Drive It Barley Goes And When It Does It Jumps And Jolts. Transmisson?

Hello there, the transmission being unable to shift into reverse is a common issue for vehicles as they age and increase in mileage. There are a few common causes for this malfunction. The most likely would be low transmission fluid...

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