SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2018SONIC PREMIER, 4D SEDAN, STANDARD TRANSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 11 (PROGRAMMING AND SETUP - ALL SYSTEMS)REPAIR INSTRUCTIONSINSTRUMENT CLUSTER PROGRAMMING AND SETUPUNSUCCESSFUL PROGRAMMING RECOVERY
2018 Chevrolet Sonic Premier, 4D Sedan, Standard Trans

Unsuccessful Programming Recovery

2018 Chevrolet Sonic Premier, 4D Sedan, Standard TransSECTION Unsuccessful Programming Recovery
WARNING: This page is about a different car, the 2017 GMC Canyon and 2017 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.

In the event of an interrupted or unsuccessful programming event, perform the following steps:

  1. DO NOT turn the ignition OFF. Ensure that all ECU, DLC and programming tool connections are secure and the TIS terminal operating software is up to date.
  2. Attempt to reprogram the ECU.
  3. If the ECU can still not be programmed, turn the ignition OFF for at least one minute.
  4. Turn the ignition ON and attempt to reprogram the ECU. The ECU should program.
    • If the ECU still cannot be programmed, replace the ECU.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.