Chevrolet Sonic Repair Manual: Ignition Transmission Lock Check
While parked, and with the parking brake set, try to turn the ignition to LOCK/OFF in each shift lever position.
- For automatic transmission vehicles, the ignition should turn to LOCK/OFF only when the shift lever is in P (Park).
- For manual transmission vehicles, the ignition should turn to LOCK/OFF only when the shift lever is in neutral.
On all vehicles, the ignition key should come out only in LOCK/OFF.
Contact your dealer if service is required.
Transmission Adaptive Functions
The 6T30/40/45/50 transmission utilizes a line pressure control system during
upshifts to compensate for the normal wear of transmission components. As the apply
components within the transmission ...
Other materials:
Master Cylinder Replacement
Removal Procedure
Warning: Refer to Brake Fluid Irritant Warning.
Caution: Refer to Brake Fluid Effects on Paint and Electrical
Components Caution.
Place the ignition switch in the OFF position.
Remove the battery. Refer to Battery Replacement.
Disconnect ...
Rear Disc Brake Pads Replacement
Removal Procedure
Warning: Refer to Brake Dust Warning.
Note: Always replace disc brake pads in axle sets.
Inspect the fluid level in the brake master cylinder reservoir.
If the brake fluid level is midway between the maximum-full point and
the minimum allowab ...
Control Solenoid Valve and Transmission Control Module Assembly Inspection
Verify the conditions listed below do not exist. Carefully
inspect the control solenoid valve assembly connectors and pins (1, 2, 4, 6)
for the condition. Repair or replace as necessary.
Damage
Bent pins
Debris
Broken retaining tab
Contamination
Verify there is ...
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