Chevrolet Sonic Owner's Manual: Tire Pressure Light
For vehicles with the Tire Pressure Monitor System (TPMS), this light comes on briefly when the engine is started. It provides information about tire pressures and the TPMS.
When the Light Is On Steady
This indicates that one or more of the tires are significantly underinflated.
Stop as soon as possible, and inflate the tires to the pressure value shown on the Tire and Loading Information label. See Tire Pressure.
When the Light Flashes First and Then Is On Steady
If the light flashes for about a minute and then stays on, there may be a problem with the TPMS. If the problem is not corrected, the light will come on at every ignition cycle. See Tire Pressure Monitor Operation.
Engine Coolant Temperature Warning Light
This light comes on briefly while starting the vehicle.
If it does not, have the vehicle serviced by the dealer. If the system is working
normally the indicator light goes off.
Caution
The engi ...
Engine Oil Pressure Light
Caution
Lack of proper engine oil maintenance can damage the engine. Driving with
the engine oil low can also damage the engine. The repairs would not be covered
by the vehicle warranty. Check th ...
Other materials:
What to Use
Warning
Adding only plain water or some other liquid to the cooling system can be
dangerous. Plain water and other liquids, can boil before the proper coolant mixture
will. The coolant warning system is set for the proper coolant mixture. With plain
water or the wrong mixture, the engine coul ...
Driver or Passenger Seat Removal and Installation
Driver or Passenger Seat Removal and Installation
Callout
Component Name
Warning: Refer to SIR Warning.
Preliminary Procedures
Disable the SIR system. Refer to SIR Disabling and Enabling.
Disconnect the fr ...
Secondary Air Injection System Description
The Secondary Air Injection System aids in the reduction of hydrocarbon exhaust
emissions during a cold start. This occurs when the start-up engine coolant temperature
(ECT) is between −10 to +56?C (14?33?F), the intake air temperature (IAT) is greater
than −10?C (14?F) and it has ...
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