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OEM Main Engine Control Module (ECM) for 2011, 2012, 2013, 2014, 2015, 2016 Buick, Cadillac, Chevrolet, & GMC
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OEM Main Engine Control Module (ECM) for 2011-2016 Buick, Cadillac, Chevrolet, & GMC

Out of Stock
$ 73 .95

Product Notes

This is a used engine control module for vehicles with a 3.5L engine. The module must be programmed at a dealership to ensure driveability and emission standards.
Condition: Excellent (A)
Like new, minimal to no wear

1 Other Matching Unit Available

Same part, different stock options.

See All Other Engine Control Module (ECM)s

Why Buy Used OEM Parts?

  • ✓ Quality-Verified: Every used OEM part we sell has been professionally inspected and tested. While it may show some cosmetic wear, it's fully functional and ready to install.
  • ✓ Original Equipment: This is a genuine OEM part — the exact part that came with your vehicle from the factory. Perfect fitment and performance.
  • ✓ Works Like New: Despite visual wear, internal components and functionality are intact. Same reliability you'd expect from OEM quality.
  • ✓ Significant Savings: Save 50–80% vs. new. Factory quality at a fraction of the cost — the smart choice for budget-conscious owners.
30-dayreturns 6-monthwarranty 100%money-back
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Vehicle Fitment Guide

This part fits the following vehicles:

Buick 1 model(tapclick to expand)(tapclick to hide)
Encore 2013-2016 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base SUV 2013 - 2016 L4 1.4L Turbo AWD/FWD | Automatic
Convenience SUV 2013 - 2016 L4 1.4L Turbo AWD/FWD | Automatic
Leather SUV 2013 - 2016 L4 1.4L Turbo AWD/FWD | Automatic
Premium SUV 2013 - 2016 L4 1.4L Turbo AWD/FWD | Automatic
CX SUV 2015 - 2016 L4 1.4L Turbo FWD | Automatic
CXL SUV 2015 - 2016 L4 1.4L Turbo FWD | Automatic
Sport Touring SUV 2016 L4 1.4L Turbo AWD/FWD | Automatic
2014
Cadillac 1 model(tapclick to expand)(tapclick to hide)
ELR 2014-2016 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base Coupe 2014 - 2016 L4 1.4L PLUG-IN HYBRID EV-GAS (PHEV) FWD | Automatic
2015
Chevrolet 10 models(tapclick to expand)(tapclick to hide)
Cruze 2012-2016 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base Sedan 2012 L4 1.8L FWD | Automatic & Manual
Eco Sedan 2012 - 2015 L4 1.4L Turbo FWD | Automatic & Manual
LS Sedan 2012 - 2016 L4 1.8L FWD | Automatic
LT Sedan 2012 - 2016 L4 1.4L Turbo FWD | Automatic & Manual
LT Sedan 2012 - 2016 L4 1.8L FWD | Automatic
LTZ Sedan 2012 - 2016 L4 1.4L Turbo FWD | Automatic
LS Sedan 2013 - 2016 L4 1.8L FWD | Manual
L Sedan 2015 L4 1.8L FWD | Automatic & Manual
LT Sedan 2015 - 2016 L4 1.8L FWD | Manual
L Sedan 2016 L4 1.4L Turbo FWD | Automatic & Manual
LS Sedan 2016 L4 1.4L Turbo FWD | Automatic & Manual
Premier Sedan 2016 L4 1.4L Turbo FWD | Automatic
Express 2500 2016 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base Extended Cargo Van 2016 V8 6.0L RWD | Automatic
Base Standard Cargo Van 2016 V8 6.0L RWD | Automatic
LS Standard Passenger Van 2016 V8 6.0L RWD | Automatic
LT Standard Passenger Van 2016 V8 6.0L RWD | Automatic
Express 3500 2016 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base Cutaway Van 2016 V8 6.0L RWD | Automatic
Base Extended Cargo Van 2016 V8 6.0L RWD | Automatic
Base Standard Cargo Van 2016 V8 6.0L RWD | Automatic
LS Extended Passenger Van 2016 V8 6.0L RWD | Automatic
LS Standard Passenger Van 2016 V8 6.0L RWD | Automatic
LT Extended Passenger Van 2016 V8 6.0L RWD | Automatic
LT Standard Passenger Van 2016 V8 6.0L RWD | Automatic
Silverado 2500 2014-2016 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base Crew Cab Pickup 2014, 2016 V8 5.3L RWD/4WD | Automatic
Base Extended Cab Pickup 2014 V8 5.3L RWD/4WD | Automatic
Base Standard Cab Pickup 2014, 2016 V8 5.3L RWD/4WD | Automatic
LS Crew Cab Pickup 2015 V8 5.3L RWD/4WD | Automatic
LS Extended Cab Pickup 2015 V8 5.3L RWD/4WD | Automatic
LS Standard Cab Pickup 2015 V8 5.3L RWD/4WD | Automatic
Silverado 3500 2012-2016 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base Cab & Chassis 2012 - 2013, 2016 V8 6.0L RWD | Manual
WT Cab & Chassis 2015 V8 6.0L RWD | Manual
2014
Sonic 2012-2016 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
LS Sedan 2012 L4 1.6L FWD | Automatic
LS Sedan 2012 - 2016 L4 1.6L FWD | Manual
LT Hatchback 2012 - 2016 L4 1.4L Turbo FWD | Automatic & Manual
LT Sedan 2012 - 2016 L4 1.4L Turbo FWD | Automatic & Manual
LT Sedan 2012 - 2016 L4 1.6L FWD | Automatic
LTZ Hatchback 2012 - 2016 L4 1.4L Turbo FWD | Automatic
LTZ Hatchback 2012 - 2015 L4 1.4L Turbo FWD | Manual
LTZ Sedan 2012 - 2016 L4 1.4L Turbo FWD | Automatic
LTZ Sedan 2012 - 2015 L4 1.4L Turbo FWD | Manual
LTZ Sedan 2012 - 2016 L4 1.6L FWD | Automatic
LS Hatchback 2013 - 2016 L4 1.8L FWD | Automatic & Manual
LS Sedan 2013 - 2016 L4 1.8L FWD | Automatic & Manual
LT Sedan 2013 - 2016 L4 1.6L FWD | Manual
LT Hatchback 2013 - 2016 L4 1.8L FWD | Automatic & Manual
LT Sedan 2013 - 2016 L4 1.8L FWD | Automatic & Manual
LTZ Hatchback 2013 - 2014 L4 1.8L FWD | Automatic & Manual
LTZ Sedan 2013 - 2014 L4 1.8L FWD | Automatic & Manual
RS Hatchback 2013 - 2016 L4 1.4L Turbo FWD | Automatic & Manual
ZMX Sedan 2014 L4 1.6L FWD | Manual
RS Sedan 2015 - 2016 L4 1.4L Turbo FWD | Automatic & Manual
LT Hatchback 2016 L4 1.6L FWD | Automatic & Manual
Spark 2014-2015 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Byte Hatchback 2014 - 2015 L4 1.2L FWD | Manual
Cargo Hatchback 2014 - 2015 L4 1.2L FWD | Manual
DOT Hatchback 2014 - 2015 L4 1.2L FWD | Manual
LS Hatchback 2014 - 2015 L4 1.2L FWD | Automatic CVT & Manual
LT Hatchback 2014 - 2015 L4 1.2L FWD | Automatic CVT & Manual
LTZ Hatchback 2014 - 2015 L4 1.2L FWD | Manual
ZMX Hatchback 2014 L4 1.2L FWD | Manual
Suburban 3500 HD 2016 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
LS SUV 2016 V8 6.0L 4WD | Automatic
LT SUV 2016 V8 6.0L 4WD | Automatic
Trax 2013-2016 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
LS SUV 2013 - 2016 L4 1.4L Turbo FWD | Automatic & Manual
LS SUV 2013 L4 1.8L FWD | Automatic
LS SUV 2013 - 2016 L4 1.8L FWD | Manual
LT SUV 2013 - 2016 L4 1.4L Turbo AWD/FWD | Automatic
LT SUV 2013 - 2016 L4 1.8L FWD | Automatic
LTZ SUV 2013 - 2016 L4 1.4L Turbo AWD/FWD | Automatic
LTZ SUV 2013 - 2016 L4 1.8L FWD | Automatic
LS SUV 2015 - 2016 L4 1.4L Turbo AWD | Automatic
LS SUV 2016 L4 1.4L Turbo AWD | Manual
2014
Volt 2011-2015 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base Hatchback 2011 - 2015 L4 1.4L PLUG-IN HYBRID EV-GAS (PHEV) FWD | Automatic
2012 - 2014
GMC 4 models(tapclick to expand)(tapclick to hide)
Savana 2500 2016 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base Extended Cargo Van 2016 V8 6.0L RWD | Automatic
Base Standard Cargo Van 2016 V8 6.0L RWD | Automatic
LS Standard Passenger Van 2016 V8 6.0L RWD | Automatic
LT Standard Passenger Van 2016 V8 6.0L RWD | Automatic
Savana 3500 2016 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base Cutaway Van 2016 V8 6.0L RWD | Automatic
Base Extended Cargo Van 2016 V8 6.0L RWD | Automatic
Base Standard Cargo Van 2016 V8 6.0L RWD | Automatic
LS Extended Passenger Van 2016 V8 6.0L RWD | Automatic
LS Standard Passenger Van 2016 V8 6.0L RWD | Automatic
LT Extended Passenger Van 2016 V8 6.0L RWD | Automatic
LT Standard Passenger Van 2016 V8 6.0L RWD | Automatic
Sierra 2500 HD 2012-2016 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
SLE Crew Cab Pickup 2012 - 2016 V8 6.0L RWD/4WD | Automatic
SLE Extended Cab Pickup 2012 - 2013, 2015 - 2016 V8 6.0L RWD/4WD | Automatic
SLE Standard Cab Pickup 2012 - 2016 V8 6.0L RWD/4WD | Automatic
SLT Crew Cab Pickup 2012 - 2016 V8 6.0L RWD/4WD | Automatic
SLT Extended Cab Pickup 2012 - 2013, 2015 - 2016 V8 6.0L RWD/4WD | Automatic
WT Crew Cab Pickup 2012 - 2014 V8 6.0L RWD/4WD | Automatic
WT Extended Cab Pickup 2012 - 2013 V8 6.0L RWD/4WD | Automatic
WT Standard Cab Pickup 2012 - 2014 V8 6.0L RWD/4WD | Automatic
Denali Crew Cab Pickup 2014 - 2016 V8 6.0L RWD/4WD | Automatic
Base Crew Cab Pickup 2015 - 2016 V8 6.0L RWD/4WD | Automatic
Base Extended Cab Pickup 2015 - 2016 V8 6.0L RWD/4WD | Automatic
Base Standard Cab Pickup 2015 - 2016 V8 6.0L RWD/4WD | Automatic
Sierra 3500 HD 2012-2016 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
SLE Cab & Chassis 2012 - 2016 V8 6.0L RWD/4WD | Automatic
SLE Crew Cab Pickup 2012 - 2016 V8 6.0L RWD/4WD | Automatic
SLE Extended Cab Pickup 2012 - 2013, 2015 - 2016 V8 6.0L RWD/4WD | Automatic
SLE Standard Cab Pickup 2012 - 2016 V8 6.0L RWD/4WD | Automatic
SLT Cab & Chassis 2012, 2015 V8 6.0L RWD/4WD | Automatic
SLT Crew Cab Pickup 2012 - 2016 V8 6.0L RWD/4WD | Automatic
SLT Extended Cab Pickup 2012 - 2013, 2015 - 2016 V8 6.0L RWD/4WD | Automatic
WT Cab & Chassis 2012 - 2014 V8 6.0L RWD/4WD | Automatic
WT Crew Cab Pickup 2012 - 2014 V8 6.0L RWD/4WD | Automatic
WT Extended Cab Pickup 2012 - 2013 V8 6.0L RWD/4WD | Automatic
WT Standard Cab Pickup 2012 - 2014 V8 6.0L RWD/4WD | Automatic
Denali Crew Cab Pickup 2014 - 2016 V8 6.0L RWD/4WD | Automatic
Base Cab & Chassis 2015 - 2016 V8 6.0L RWD/4WD | Automatic
Base Crew Cab Pickup 2015 - 2016 V8 6.0L RWD/4WD | Automatic
Base Extended Cab Pickup 2015 - 2016 V8 6.0L RWD/4WD | Automatic
Base Standard Cab Pickup 2015 - 2016 V8 6.0L RWD/4WD | Automatic
Verify before ordering — please confirm your vehicle's year, make, model and sub-model specifications before placing your order. If anything is unclear, our customer service team is available to help.

Policies

Shipping & Handling

  • Standard shipping: 3-7 business days via UPS Ground
  • Parts are carefully packaged to prevent damage during transit

Returns (30 Days)

We accept returns within 30 days of delivery for this part.

  • Defective parts: We will replace the part or issue a refund at our discretion
  • Electronic parts: Must be returned with the sealed inspection bag unopened. The clear bag allows full visual inspection before opening. Once opened, electronic parts can only be exchanged for a replacement if defective — no refunds
  • Programming: "Needs to be programmed to my vehicle" is not a valid return reason. Many modules require dealer programming — we're happy to help connect you with resources if your dealer says it's not programmable
  • Return shipping: We cover return shipping as part of our 100% money-back guarantee
  • Parts must be returned in original packaging and unmodified condition
  • Poorly packaged returns that arrive damaged will not be credited

6-Month Warranty

All used parts include a 6-month warranty from the date of purchase.

  • If your part fails within 6 months, we will send a replacement
  • Refunds are only issued if we cannot provide a suitable replacement
  • Warranty covers defects — not installation errors, misuse, or damage after installation

Note: Warranty is for replacement, not refund. A part failing on day 80? We'll replace it. But the return window for refunds is 30 days.

Damaged in Shipping?

If your part arrives damaged:

  • Stop immediately — do not install the part
  • Keep all original packaging and boxes
  • Take clear photos of the damage and packaging
  • Contact us within 48 hours of delivery

We will handle the carrier claim. You are not responsible for shipping damage — we just need your help documenting it.

Order Cancellation

Orders can be cancelled before shipment for a full refund. Once shipped, cancellations follow our return policy.

Go-Parts Garage · Featured Guide

2016 GM Truck & Van ECM: Programming, Issues & Replacement Guide (6.0L Gas & 6.6L Diesel)

This in-depth guide covers the common failure symptoms, replacement costs, and critical programming requirements for the Engine Control Module (ECM) in 2016 GM HD trucks and vans.

Read Full Guide →

⚠️ Related Trouble Codes (OBD-II)

50 matching guides

If your scan tool is showing one of these trouble codes, this part is a common fix. Each guide explains the code, how to diagnose it, and exactly what to replace.

P0089
Causes and Fixes for Fuel Pressure Performance
2015-2016 Chevrolet SILVERADO 2500
P0191
Fuel Rail Pressure Sensor Causes and Fixes
2016-2018 Gmc SIERRA 3500
P0191
Fuel Rail Pressure Sensor Causes and Fixes
2010-2014 Chevrolet SILVERADO
P0333
Knock Sensor Circuit Causes and Fixes
2014-2018 Gmc SIERRA 2500
P0601
ECM/TCM Failure Causes and Fixes
2011-2016 Chevrolet Cruze
P0601
Internal ECM Failure Causes and Fixes
2015-2018 Chevrolet SUBURBAN
P0601
Control Module Memory Error Fixes
2008-2015 Chevrolet SILVERADO 3500
P0601
Internal Memory Error Causes and Fixes
2011-2015 Chevrolet CRUZE
P0601
Internal Memory Fault Causes and Fixes
2013-2015 Buick ENCORE
P0601
Internal Memory Error Causes and Fixes
2011-2015 Chevrolet VOLT
P0602
Control Module Programming Error Causes and Fixes
2003-2014 GMC Sierra
P0602
Control Module Programming Error Explained
2009-2016 Chevrolet Cruze
↑ A single part can trigger multiple related trouble codes. Each guide is vehicle- and code-specific.

Miscellaneous Information

OEM Part Numbers:
Other: 12643636, 12668866, 12668991, 12669749, 12692200

Fits Years: 2011 2012 2013 2014 2015 2016

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Warranty

Backed For The Long Haul

This part ships with a 6-month warranty. If it doesn't fit or stops working, we replace or refund — no hassle.

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★★★★★ 4.9 1,451 verified reviews

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