Chevrolet Sonic Repair Manual: Battery Disconnect Warning

Warning:

Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

For Vehicles equipped with OnStar® (UE1) with Back Up Battery:

The Back Up Battery is a redundant power supply to allow limited OnStar® functionality in the event of a main vehicle battery power disruption to the VCIM (OnStar®module). Do not disconnect the main vehicle battery or remove the OnStar® fuse with the ignition key in any position other than OFF. Retained accessory power should be allowed to time out or be disabled (simply opening the driver door should disable retained accessory power) before disconnecting power. Disconnecting power to the OnStar® module in any way while the ignition is On or with retained accessory power activated may cause activation of the OnStar® Back-Up Battery system and will discharge and permanently damage the back-up battery. Once the Back-Up Battery is activated it will stay on until it has completely discharged. The back-up battery is not rechargeable and once activated the back-up battery must be replaced.

Battery Description and Operation

Warning: Batteries produce explosive gases, contain corrosive acid, and supply levels of electrical current high enough to cause burns. Therefore, to reduce the risk of personal injury when w ...

Battery Inspection/Test

Diagnostic Instructions Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic a ...

Other materials:

Radio
Radio Controls without Touchscreen : Press to turn the system on or off. Turn to increase or decrease the volume. When the system is on, press and release to mute the system. Press and release again to turn the sound back on. RADIO/BAND: Press to choose FM, AM, or SiriusXM® (if equipped). ...

Headlining Trim Panel Replacement (Hatchback without Sunroof)
Headlining Trim Panel Replacement Callout Component Name Warning: Do not attempt to repair or alter the head impact energy-absorbing material glued to the headliner or to the garnish trims. If the material is damaged ...

Rear Seat Outboard Seat Back Airbag Replacement
Rear Seat Outboard Seat Back Airbag Replacement Callout Component Name Warning: Following the deployment of a rear seat side air bag, inspect the following parts for damage. Replace these parts if necessary: ...