Chevrolet Sonic Repair Manual: Tires and Wheels Description and Operation (Tire Identification)
- Identification
-
- Accessory and warranty replacement must use TPC spec tires.
- An outboard orientation stripe is added to the tread surface, with an offset toward the outboard tire face.
- All GM approved tires (Production, Service and Accessory) have a TPC (Tire Performance Criteria) code.
- A replacement tire that lacks the original TPC code will not meet the performance characteristics of the original tire, even if it is the same brand, model and size.
- Force and Moment
- Residual Aligning Torque (RAT)
- Rolling Resistance
- Braking Traction
- Driving Traction
- Uniformity
- Noise
- Dimensions
- Mass
- Rev/KM
- High Speed
- Air Retention
- Electrical Resistance
- Automatic Mounting
- Endurance (ATE)
- Treadwear
- Chip/tear
- Groove Wander
- Ride and Handling
- Wet/Snow Handling
The TPC system facilitates tire replacement for GM customers on GM vehicle, meeting the same critical performance specifications of GM vehicle original equipment tires.
Tires and Wheels Description and Operation (Equipment)
GM Recommended Tire Balancer
Hunter RF33 Road Force balancer or equivalent with the following options:
Auto Clamp – allows for centering repeatability and prevent damage to
the ...
Toe Description
Toe is a measurement of how much the front and/or rear wheels are turned in or
out from a straight-ahead position. When the wheels are turned in, toe is positive (+).
When the wheels are ...
Other materials:
Battery Replacement
Removal Procedure
Open the hood.
Disconnect the negative battery cable. Refer to Battery Negative Cable
Disconnection and Connection.
Remove the battery retainer bolt (1) and the battery retainer (2).
Loosen the battery positive cable ju ...
Engine Replacement (Automatic Transmission)
Special Tools
J-45859 Wheel Drive Shaft Remover
CH-807 Closure Plugs
For equivalent regional tools, refer to Special Tools.
Removal Procedure
Remove the battery and battery tray. Refer to
Battery Tray Replacement.
Relieve the fuel system pressure. Refer to
Fuel Pre ...
Clutch System Description and Operation
Clutch Spin Down Time
Inspect the clutch spin down time as follows:
Apply the parking brake and block the vehicle wheels.
Shift the manual transmission into NEUTRAL.
Start the engine. Run the engine at idle speed.
Engage the clutch.
Disengage the clutch. Wait 9 seconds.
...
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