Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSBUICK2016ENCORE BASE, AWDREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSDTC INDEXIMMOBILIZER SYSTEM - DIAGNOSTIC TROUBLE CODES
2016 Buick Encore Base, AWD
Immobilizer System - Diagnostic Trouble Codes
2016 Buick Encore Base, AWDSECTION Immobilizer System - Diagnostic Trouble Codes
IMMOBILIZER SYSTEM - DIAGNOSTIC TROUBLE CODES
| DTC | Description |
|---|---|
| DTC B2955 | Security Sensor |
| DTC B302A | Mobile Telephone Communications Interface Requested Immobilization |
| DTC B3031 | Security Controller In Learn Mode |
| DTC B3055 | No Transponder Modulation or No Transponder |
| DTC B305C | Immobilizer Transponder of Wrong Type Programmed |
| DTC B3060 | Unprogrammed Transponder Identification Code Received |
| DTC B389A | Environment Identification |
| DTC B3902 | Incorrect Immobilizer Identifier Received |
| DTC B3924-B3928 | Incorrect Environmental Identifier Received |
| DTC B3935 | Transponder Authentication |
| DTC B3976 | Unconfigured Transponder |
| DTC B3978-B3982 | Incorrect Environmental Identifier Received |
| DTC B3984 | Device 1 Environment Identifier Not Programmable |
| DTC P0513 | Immobilizer Key Incorrect |
| DTC P0633 | Immobilizer Key Not Programmed |
| DTC P162B | Remote Vehicle Speed Limiting Signal Message Counter |
| DTC P1630 | Immobilizer Learn Mode Active |
| DTC P1631 | Immobilizer Fuel Enable Signal Not Correct |
| DTC P1649 | Immobilizer Security Code Not Programmed |
| DTC P1677 | Immobilizer System Disabled |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.