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2014 Chevrolet Cruze - “reduced engine power” message

car very often says “reduced engine power, idle engine” It has 48,000 miles and is a 2014 Chevy Cruze

This article is a good explanation of the message.

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If the car has a moonroof, water may be leaking down the A pillar and getting into one of the wiring connectors in the instrument panel.

Ask your shop to check for diagnostic codes in the computer memory. Beyond that make sure the engine and transmission oil level is good, the coolant level is good, and monitor the dashboard gauges as you drive for reasons why this message might be displayed, such as overheating, low oil pressure, transmission problems, alternator problems etc.

My wild educated guess is a faulty APP sensor. The vehicle accelerator input is drive-by-wire technology. Because of the importance of engine speed control, the accelerator position sensor is actually 2 redundant sensors that are components of the accelerator pedal assembly. If just one of the 2 sensors glitches then the car’s computer displays that message and limits speed and defaults to some other limitations. Sometimes just unplugging and plugging the harness to the pedal assembly will correct the situation.

Having the DTCs read will prove or disprove this guess.
CSA
:palm_tree: :sunglasses: :palm_tree:

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thank you, I’ll do that!

Welcome! Please let us know what you learn. We appreciate the feedback and can offer some more advice and suggestions.
CSA
:palm_tree: :sunglasses::palm_tree: