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:
Automatic Door Locks
The vehicle is programmed so that when the doors are closed, the ignition is
on, and the shift lever is moved out of P (Park) for automatic transmissions, or
when the vehicle speed is above 13 km/h (8 mph) for manual transmissions, the doors
and the trunk/liftgate will lock.
To unlock the doo ...
Starter Switch Check
Warning
When you are doing this inspection, the vehicle could move suddenly. If the
vehicle moves, you or others could be injured.
1. Before starting this check, be sure there is enough room around the vehicle.
2. Apply both the parking brake and the regular brake.
Do not use the accelerator p ...
Input Speed Sensor Replacement
Removal Procedure
Remove the control solenoid valve and transmission
control module assembly. Refer to Control Solenoid
Valve and Transmission Control Module Assembly Replacement.
Remove the input speed sensor bolt (2) M6 x 23.
Unlock t ...
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