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U0100 on CHEVROLET MALIBU

Severity
Medium
NHTSA Reports
2
Most Affected
2008, 2020

What U0100 Means on Your CHEVROLET MALIBU

Real CHEVROLET MALIBU Owner Reports (Source: NHTSA Complaints Database)

"I have had the car for almost 2 years the computer crashed (code u0100 ecm pcma) unfortunately the car doesn't start at all so now i may have to get a new car because the car lot doesn't want to pay for it."

— 2008 CHEVROLET MALIBU owner • ELECTRICAL SYSTEM • Filed 06/02/2020

"The problems listed in my vehicle are the following • U0073: Control Module Communication Bus A Off • U0100: Lost Communication With Engine Control Module • U0121: Lost Communication with Electronic Brake Control Module • U0140: Lost Communication With Body Control Module • P0700: Transmission Con"

— 2020 CHEVROLET MALIBU owner • ELECTRICAL SYSTEM,SERVICE BRAKES • Filed 07/25/2024

Data from NHTSA Vehicle Complaints Database. All reports are filed by vehicle owners directly with the U.S. Department of Transportation.

Common Causes of U0100 on CHEVROLET MALIBU

50%
50%

Percentages based on NHTSA complaint component analysis for this vehicle.

Complaint Trend by Year

2008
1
2020
1

What To Do Next

  1. 1
    Check for recalls on YOUR VIN

    Go to nhtsa.gov/recalls and enter your VIN. Free repairs if your vehicle is covered.

  2. 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.

  3. 3
    Compare repair quotes

    Get 2-3 quotes. Dealer vs independent shop prices often differ 30-50% for the same repair.

U0100 on Other Vehicles

Data sourced from the National Highway Traffic Safety Administration (U.S. Department of Transportation) and the SAE J2012 OBD-II standard. Code definitions follow the SAE J2012 / ISO 15031-6 standard. Owner reports are filed directly with NHTSA by vehicle owners. This information is provided for educational purposes only and should not replace professional automotive diagnosis. Always consult a qualified mechanic for vehicle repair decisions.

Last updated: March 2026