• Dave September 29, 2015 at 8:39 pm

    I have an ’06 that I bought a year ago from my sister in law to help her out of a bind. She claims to never have had a problem and if something came up she was at the dealership to rectify it and her stack of paperwork confirms it. It has 125k, is a 2.4 and Lt trim. My wife uses it as her primary car. I’ve replaced inside door handles….no biggy, they’re plastic, they break. Months ago my wife said the dash lights are going haywire. I drove it, nothing. Later she says it’s happening more and more. The lights go crazy, AC and radio shuts off and it steers hard. Oh, and key stuck but can stop engine. (Did the ignition recall). This week she called from work “it’s dead. No start, no lights, nothing”. I figure since the ‘puter is shutting things down, it’s prolly low voltage. Yes, the battery was shot – new battery (almost $200). Started the car. It ran for five minutes and shut down. Started again, die. Start again, die. Alternator? Another test with volt/ohm meter. I get no charging voltage back to battery so the ‘puter shuts down? Ok, new alterator ($125). What a horrible pain to get at, but today that task is complete. I start the motor and watch the meter. Good juice even with air on. I shift to reverse then into drive. Ok, no drop in voltage, sweet. No crazy light show on the dash. Man, I soo rock. I shift back to park, it dies. Start it back up, die. Start, die. Start, die. The car is still sitting in my wife’s Employer’s parking lot where I did all the “repairs” in between rain showers. Why doesn’t it go bad when it’s near the garage where all the tools are? Now I’m stumped and will have to pay for a tow and shop rates for diag and labor. Can’t wait to hear what they want for parts. Being retired and budgeting has it’s drawbacks. I haven’t even touched on the front end trouble we’re experiencing such as steering wheel wobble when braking hard. I inspected the brakes and it all appears in good shape (recent brake work performed according to sis in law’s receipts). I have replaced all four hub bearings and it still doing it.
    There are so many probs on this thread, has anyone got any solutions? I’ll try to be diligent and follow up with fixes.

    • Dave October 14, 2015 at 9:01 pm

      So far it has been learned that this 06 HHR, and very possibly many other models, have many grounding posts placed throughout the car’s unibody. Since the battery is in the rear under the spare tire, the negative post is no longer tied directly to the engine block like the “old days”. My mechanic researched the wiring schematic for this car and we found that many different functions are bundled and grounded at various locations. GM has replacement bolts you can order because the originals tend to rust and/or oxidize over time. A bad ground will play havoc with an electrical system by not completing a circuit thus not allowing certain functions to operate correctly. And since many of the problems we’re experiencing are bundled to common ground locations it makes sense the we will find the problem. Right? Each location was painstakingly checked and cleaned. All serial connections, wires, modular plugs and relays were inspected and tested. Seriously, we have talked with GM dealers, Buick dealers and they have no idea what do to look for next.
      BCM. Body Control Module.
      Can it be tested? No, not really. We know that the commands are being transmitted but the actions aren’t being carried out. An example would be that there are no injector codes stored and there is no pulse at the injector when there should be to keep the engine running. The ECM (Engine Control Module) gets a lot of commands from the BCM.
      My mechanic doesn’t have the expensive testing equipment that is usually reserved for dealers to plug in and the BCM but being a good mech and running a reputable shop, he knows someone that does. This process does NOT come cheap. The car is now in another shop and I’ve been contacted by the owner and he stated that he thinks we need to order a new BCM. You think? He says it’s getting commands but nothing is happening. Hell, I knew THAT much. I asked where he gets them and he answered “chevy”. His quote is just shy of $600 to acquire it, program it since it is specific to the car’s VIN, and install it. That doesn’t include the use of the “wonder machine” and his time thus far. Wow. Just wow.
      Please order the part and make the car whole, thank you very much I mutter through clenched teeth all the while trying to sound cordial. I doubt that it did.
      More later, I hope it’s good.

      • Dave October 22, 2015 at 11:31 pm

        Got the call to inform me that the car is done and ready to be picked up. With a shaky hand I swipe my credit card and the gal at the counter handed me my key. I have almost $1000 into this damn car so far. My wife and I go outside and she starts the car. It’s running!! Finally, a step in the right direction. I have my wife push all the buttons, turn every knob, operate all the functions she can find. It’s still running. Ok, lets roll. I’ll follow you home.
        This morning while my wife is driving to work the dash board lights went out and came back on and now the key fobs don’t work. Oh no, this feels very familiar.
        Tune in again to the continuing saga. More to come.

  • Alfred Ramos October 7, 2015 at 11:17 pm

    My ac keeps dripping water onto my floor mat. Now my ac doesn’t work.

  • aunjel thomas October 23, 2015 at 7:34 pm

    This is the worst car I’ve ever purchased. Never again will I do .

  • michael moen November 21, 2015 at 4:22 pm

    I had an 06 hhr last december going to christmas smoke came in car up by windshield and dash my daughters and i jump out of the car within seconds car was completely in flames very horrifing i would never buy a chevy hhr or any piece of shit chevy at that thank God we survived.

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