Most of those are in the common part number thread, thanks for adding the others!
https://www.chevyhhr.net/forums/comm...-part-i-48833/

Is the headlamp one Assembly or is there a bulb, sorry new owner

Free Owner Manual via link in my sig.

It’s a bulb , H13 bulb. Welcome to the site.

Thank you for the reply. Different subject, but thing seems like it needs shocks and struts. I read the steering being loose on these, but before I plop down a grand.

Look at the lower control arms rear bushings first.
adjust the rear drum brakes
inspect the ball joints and tie rods
struts and shocks are commonly replaced if they are leaking fluid

AWESOME COMPREHENSIVE HHR BULB part number LIST!
 

Jay Thanks so much for that list! Perfect for ordering through AutoZone and sending them a list.
Wrote title/subject that way to make it easier for others to follow in our footsteps.

Not sure if this thread is still active but would anyone know what the bulb numbers are for the gauge cluster/dash board lights are?

As far as I know they are surface mount LEDs.

X2 ^^^^^ the instrument panel is illuminated by soldered in bulbs.

Here’s a few photos of the dash cluster circuit board

https://www.chevyhhr.net/forums/appe...revised-11116/