P2646 on CHEVROLET MALIBU
What P2646 Means on Your CHEVROLET MALIBU
Real CHEVROLET MALIBU Owner Reports (Source: NHTSA Complaints Database)
"P2646 diagnostic code - rocker arm control solenoid In June 2020, GM issued "Special Coverage Adjustment N192289160 Rocker Arm Oil Control Valve Inoperative" for the coverage of the repair for rocker arm oil control valve, (OCV) for 10 years after the purchase date, or 120,000 miles for the 2014 Ma"
"The vehicle stops while in motion and in driving gear then wheel lock up. making it unable to proceed to turn or drive. this does not matter if on highway or public street."
"Code P2646 (among others) came up. This impacts driveability, safety and mileage performance. Problem was diagnosed by 2 separate mechanics, including Chevrolet dealer. First mechanic replaced recommended part twice but issue persists. No warning prior to the issue appearing."
"I own a 2015 malibu lt 2.5l, i have not been able to pass the state required inspection due to a faulty oil control solenoid."
"In sept of 2019, my check engine light came on for my 2015 chevy malibu. i took it to the dealership and it ran the code p2646, and the they told me that i needed the gm part 12633613."
Data from NHTSA Vehicle Complaints Database. All reports are filed by vehicle owners directly with the U.S. Department of Transportation.
Common Causes of P2646 on CHEVROLET MALIBU
Percentages based on NHTSA complaint component analysis for this vehicle.
Complaint Trend by Year
What To Do Next
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1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if your vehicle is covered.
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2
Get a proper diagnosis
A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50-$150) pinpoints the root cause before you spend money on parts.
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3
Compare repair quotes
Get 2-3 quotes. Dealer vs independent shop prices often differ 30-50% for the same repair.