Chevrolet Sonic Repair Manual: Indicator/Warning Message Description and Operation
- Indicator LIGHT ON
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Refer to the owner's manual for the descriptions and explanations of all indicator lights.
For diagnosis and repair information related to an indicator light, refer to the System Diagnosis and the Description of Operation that the message relates to.
- Message Displayed
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Refer to the owner's manual for descriptions and explanations of all messages displayed.
For diagnosis and repair information related to a displayed message, refer to the System Diagnosis and the Description of Operation that the message relates to.
- CHANGE TIMING BELT MESSAGE
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The Instrument Cluster monitors the odometer mileage to determine when timing belt (if equipped) replacement may be necessary. After the vehicle has accumulated approximately 100,000 miles (160,000 kilometers), the Instrument Cluster may display the CHANGE TIMING BELT message. After the engine timing belt has been replaced, reset the CHANGE TIMING BELT message by locating and removing the fuses that supply power to the Instrument Cluster for two minutes.
Hood Ajar Indicator Description and Operation
Hood Ajar Switch
The body control module (BCM) applies B+ to the hood ajar signal circuit
and monitors the voltage to determine the position of the hood. When the hood
is closed, the sw ...
Parking Brake Indicator Switch Replacement
Removal Procedure
Remove the front floor console. Refer to
Front Floor Console Replacement.
Ensure that the park brake lever is in the fully released
position.
Disconnect t ...
Other materials:
Hill Start Assist (HSA)
This vehicle has an HSA feature, which may be useful when the vehicle is stopped
on a grade. This feature is designed to prevent the vehicle from rolling, either
forward or rearward, during vehicle drive off. After the driver completely stops
and holds the vehicle in a complete standstill on a ...
Tire Terminology and Definitions
Air Pressure: The amount of air inside the tire pressing outward on each square
inch of the tire. Air pressure is expressed in kPa (kilopascal) or psi (pounds per
square inch).
Accessory Weight: The combined weight of optional accessories. Some examples
of optional accessories are automatic t ...
Drive Range, Fifth Gear (Gen 1)
As vehicle speed increases, the transmission control module (TCM) processes input
signals from the automatic transmission input and output speed sensors, the throttle
position sensor and other vehicle sensors to determine the precise moment to command
ON the normally-high 35R pressure control ...
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