Chevrolet 2010 HHR Owner's Manual page 143

This is the shift pattern for SS models.
Here is how to operate the manual transmission:
This is the shift pattern for standard models.
Press the clutch pedal and shift into 1 (First).
Then, slowly let up on the clutch pedal as you press the
accelerator pedal.
You can shift into 1 (First) when the vehicle is traveling
less than 20 mph (32 km/h). If you have come to a
complete stop and it is hard to shift into 1 (First), put the
shift lever in N (Neutral) and let up on the clutch pedal.
Press the clutch pedal back down. Then shift into
1 (First).
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