![]() You might get lucky and find a TSB that outlines a common reason why the Engine Power Reduced mode has come on, as well as a detailed repair guide. It’ll have every TSB that Pontiac produced for that model year. Once you do, you’ll want to click on manufacturer communications. You need to input your Vibe’s model year or use a VIN search. You can head over to the NHTSA website (it’ll open in a new tab) and look up the TSBs yourself. Once you pull the code(s), you’ll want to focus on what causes that specific code, as “Engine Power Reduced” will be a symptom of that code. As you’ll see below, many potential causes can put a vehicle into Engine Power Reduced mode. Use a scanner to pull up the diagnostic codes stored in your Pontiac Vibe’s PCM. There are many potential reasons why the Engine Power Reduced message can come on. Pontiac Vibe Engine Power Reduced: Diagnosis Strategy The owner’s manual will detail exactly how your vehicle will behave with the engine power reduced. The fuel pump will shut off, and your Vibe won’t run at all.Depending on the engine and model year, as well as what system actually failed, here’s what the Engine Power Reduced mode can do: Your Vibe’s Powertrain Control Module (PCM) has reduced the available engine power due to a system failure. The most common causes are usually an issue with the TAC system or the Throttle Position Sensor.įollowing the codes is the best way to fix the Engine Power Reduced warning in the Pontiac Vibe Many components can cause the engine power to be reduced. Reduced engine power has been known to come on at very inopportune times (such as while driving on the highway). Many late model GM-made vehicles, such as the Pontiac Vibe use an “Engine Power Reduced” mode when they detect a potentially catastrophic problem. ![]()
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