Owners of early model years in the 9th generation Malibu and 1st generation Cruze have been seeing a lot of warning messages telling them their car's "Engine Power is Reduced" which can quickly result in a loss of power and limited acceleration while driving.
It's downright dangerous as this 2016 Malibu owner can attest:
I can be in the freeway and full speed traffic and suddenly my car loses power almost causing me to be hit from behind. It’s awful and it’s dangerous and I have asked the Chevy dealerships about recalls. They want to charge me almost $500 just to check it out.
What's Triggering the Warning Message? ∞
The issue appears to be related to defects within the electronic throttle control and accelerator pedal sensors. The accelerator pedal and throttle are no longer physically connected by a cable like they were in old drive-by-cable systems. In their place is a complicated web of sensors and electronic control units (ECU) known as a drive-by-wire system.
These newer systems have their advantages but are known to cause delayed acceleration and are more prone to complicated electrical failures.
Warning is usually accompanied by these error codes ∞
A few common error codes for the pedal position sensors:
- Code P0122 indicates the Switch A Circuit is Low in the throttle position sensor
- Code P0223 indicates the Switch B Circuit is High in the throttle position sensor
- Code P2138 indicates a defect within the D and/or E circuits of the throttle position sensor
Malibu Accelerator Sensor Lawsuits ∞
The accelerator pedal position sensor and electronic throttle controls are meant to last the lifetime of the vehicles. But so far GM's response has been terrible. Owners are usually left to pick up any repair bills even if error codes are triggered and point to a specific defect.
The automaker is facing multiple lawsuits as the plaintiffs say their cars are dangerous to drive for themselves and others on the road.
An investigation for another potential class-action lawsuit ∞
The law firm of Migliaccio & Rathod is currently investigating the 2016-2019 Chevy Malibu, the 2017-2018 Buick LaCrosse, and the 2018 Buick Regal for engine power reduction issues that results in unexpected deceleration, often at highway speeds. The problem appears attributable to a defective accelerator pedal sensor.
If your Chevy vehicle has experienced reduced engine power problems, please contact the lawyers at Migliaccio & Rathod by clicking here to fill out a short contact form.
Snail image courtesy on Marian Beck on Unsplash.com
Chevrolet Generations Where This Problem Happens
This problem has been reported by owners of the following generations. While there's no guarantee it affects all the listed model years, most years within a generation share the same parts, manufacturing processes, and problems.
- 2011, 2012, 2013, 2014, 2015
- 2016, 2017, 2018