Chevrolet Sonic Repair Manual: Tire and Wheel Balancing (Road Force Variation (RFV))
- ALL wheel/tire assemblies must have a RFV within spec before being mounted on vehicle.
- RFV is unrelated to tire balance.
- RFV is identifying the stiff portion of the tire and determining if it is within spec.
- If RFV is too high, it will result in a vibration condition.
- Do not attempt to measure RFV on tires that have temporary flat spots. If necessary, drive the vehicle to relieve the flat spots.
- Prior to measuring for RFV, the tires must be inflated to the specification on the label.
- Passenger Cars (including Crossover Vehicles) = 18 lbs.
- Truck Tires: (P) - metric = 24 lbs.
(LT) - metric = 35 lbs.
- It is recommended that RFV measurements are made prior to installation of balance weights. Once adequate road force levels have been achieved, move on to balance the assembly.
Important:
If a wheel/tire assembly is not within the RFV specification after match mounting, the tire must be returned to the tire manufacturer. DO NOT install tire/wheel assembly on a vehicle if it exceeds the RFV specification.
Tire and Wheel Balancing (Collet Cone Selection)
Important: Never use the hub cap bore to center the wheel onto
the balancer. The pilot bore (on the hub side of the wheel) is machined
to be concentric to very tight non - standard tole ...
Tire and Wheel Balancing (Wheel Pilot Bore Greasing)
Beginning with MY 2011 vehicle, pilot bore grease should be applied.
To enable this, grease must be applied to the pilot bore to prevent the
wheel from seizing onto the hub.
Refer to Adhesi ...
Other materials:
Bluetooth Controls
Use the buttons located on the infotainment system and the steering wheel to
operate the Bluetooth system.
Steering Wheel Controls
(Push to Talk): Press to answer
incoming calls, confirm system information, and start voice recognition.
(Mute/End Call): Press to end a
call, reject a call, ...
How to Inspect the Engine Air Cleaner/Filter
To inspect the engine air cleaner/ filter, remove the filter from the vehicle
and lightly shake the filter to release loose dust and dirt. If the filter remains
covered with dirt, a new filter is required.
To inspect or replace the air cleaner/ filter:
1.4L L4 Engine
1.8L L4 Engine
1. Re ...
Instrument Panel Center Molding Replacement (Without U58)
Instrument Panel Center Molding Replacement
Callout
Component Name
1
Instrument Panel Center Molding Assembly
Procedure
Use a flat bladed plastic trim tool in the shown locations, then
rotate the trim tool 90 ...
0.0065