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Buick Rainier, Chevy TrailBlazer, GMC Envoy



  • 01_hoe01_hoe Posts: 273
    With the recall, GM only replaced the sockets and the board the sockets were attached to, as that was the problem.
  • ross1962ross1962 Posts: 229
    Even though this is a 2004, it does sound like the same problem I had on my '02. They replaced the circuit boards and bulb. It may help te dealership to know that the service bulliten came out before the recall did. I had mine fixed before the recall under warranty.
  • immoeimmoe Posts: 15
    to kagz71: After three dayswith the Denali the brakes are fixed. The dealership with the help of GM tech support used a procedure to bleed the brakes that was computer assisted. What a difference! The Denali stop almost as well as mu 05 Z- 51 Vette. My thanks to the Paul Masse dealership here in RI. I'm leaving for vacation in the morning but if you call 401-762-2300 and ask for Chris the service advisor I know he will tell the repair procedure, Good luck, Moe
  • kagz71kagz71 Posts: 12
    Hey, I took the wife's Envoy to the Chevy dealer where I go and they hooked me up with woking brakes in no time, just as you said they had to bleed the brakes and whatnot, thanks for the info!

  • Yes, this has happened to me 3 times. Took to dealer and they can not seem to find out what's causing it. Not only do my seats lose memory, the clock and preset radio stations also lose their power. The service repair light also comes on. I'm not sure what the problem is but please let me know if you find out.
  • notfairnotfair Posts: 1
    where are you finding the TSB I have to have copies in order to prove that I am having to do alot of homework and searching for solutions that either the dealership or GMC should have access to - I have a hearing with the bbb on monday.
  • wxman4wxman4 Posts: 53
    I finally broke down and subscribed to infotraxx.
  • steverstever YooperlandPosts: 39,984
    You can get the summaries here (Edmunds Maintenance Guide), the NHTSA and at Summaries are free, but don't say much.

    Alldata will sell you the full text of the TSBs too. Looks like Infotraxx is cheaper.

    Steve, Host

    Need help navigating? - or send a private message by clicking on my name.

  • sarkelsarkel Posts: 2
    I know someone on here has to know this. OK, I freely admit i know nothing about changing a tire, that 's why i have AAA. WEll, Last week, i got a flat tire in the middle of nowhere (between West VA and PA ) and called my trusty AAA. Well, the person that they sent spent at least 2 hours (at Nite) trying to find the jack. Not only did he not find it (we did find the bars under the back seat) but he also failed to release the spare from under the vehicle.

    NOw tha I know that I cannot count on intelligent help from AAA, I really need to know this information for myself (and admittedly should have before).

    I read in the manual that perhaps the jack is need to release the secondary latch from the tire? is this true also? do you always need to release the secondary latch with the jack??? I probably sound stupid but please help me anyway as i'm going on another long drive tomorrow and need the info before i go . thanks
  • 01_hoe01_hoe Posts: 273
    You didn't say which year or model, but on my '03 and presently on my '05 GMC Envoy (both short wheelbase) the jack was / is under the right rear passenger seat. Did you buy used? If so, the jack may be missing when you bought it.
  • n7donn7don Posts: 188
    They are slow in sending out recall reminders. In fact I only got an inquiry as a result of my asking another question. What you have to do is actually log onto mygmlink and browse around. That's where I found the info, not from them sending me a notice.
    On the other hand, tblazed was having a heck of a time, they were sending multiple notices of recalls he had previoulsy had done.
  • tblazedtblazed Posts: 945
    A "bottle" jack, wheel wrench, handle and extension parts that lower down the spare, along with the instructions, should all be clipped in their holders under the back seat. The instructions are printed on a plastic sheet and attached to the vehicle with a cord. With the wheel wrench, handle and extension parts that attach together, insert through a hole in the rear bumper fascia (you have to open the lift gate) and engage the "hoist shaft", turn ccw and let down the spare. Unclip the retainer from center of spare tire [non-permissible content removed]'y by hand. A 5 minute job.

    If those tools and instructions are not with yours you need to get them from the seller or another source, maybe a salvage yard.
  • blink3blink3 Posts: 74
    Glad to see someone stepped up and got the Envoy Denali. Could you give any impressions so far? I like my SLT but wish it had the V-8. Could you tell a big difference and what kind of mileage did you get on your trip? I am avg. now 21+. Just put in a K&N today. Obviously I do lots of Hwy miles. Travel 1000+ miles per week. Been quite happy with my Envoy with almost 50k on it with only the battery problem to mention.

  • kman609kman609 Posts: 4
    First of all, a big thank you to the folks here who spent the time to figure out the Trailblazer's fan clutch woes and fixes. As I found out, the dealers in my area have not.

    I have an out-of-warranty (46K total miles) '02 Trailblazer LTZ that I brought to the dealer for some recalls--including the PCM upgrade. The car ran perfectly when it went in, then began to overheat in low speed regimes immediately afterward. The AC--which ran perfectly before--also exhibited the same non-function problems after a heat soak you all are having. All this because of the new PCM program.

    I took it back to the dealer today asking them to put the old software back in the PCM, cause the car now overheats like crazy during low speed driving with the AC on. He couldn’t do that because it was a recall item. I knew that, but it seemed like a good beginning strategy.

    I was armed with some printouts from posts here. At first, the Service Manager blew off the printouts, but after some discussion, he agreed to diagnose the problem w/o charging me. I asked him if the clutch is bad (or incompatible with the new PCM programming) if he would call GM and see if they would cover the replacement cost. I again pointed to all the problems people in the printouts were having, and mentioned GM has reimbursed some of them. I don’t recall if that was true, but lying seemed like the thing to do—Hey, it’s CARS.

    Amazingly, he called back a couple hours later saying the clutch tested OK, but the technician recommended it be replaced AND GM AGREED TO PICK UP THE TAB! Woo hoo!

    Here's where it gets interesting: I told the Service Manager I had called a couple dealers' Parts Departments (including his), inquiring about the correct part number for the replacement clutch, and they gave me the old-style (10383029) number. I told the parts guys about the TSB and the new part #. They both said that part number (for the new style) was a clutch all right, but it didn’t show what car it was for and that they didn’t stock them. I asked the Service manager to look up the TSB I showed him this morning (the one he blew off) and sure enough, it says to use the new clutch, #15293048, that is now standard on vehicles made after June, 2005.

    They had to order the updated clutch (it’ll be here tomorrow), but I'd rather wait than have an old style (what they stock and are still installing :surprise: ) put on. Pretty scary that two out of two dealers I called would have put the OLD style clutch back on.

    Anyways, thanks for doing the heavy lifting on this issue, and thank you GM for stepping up.

    Will let you know how the new fan works out.

  • 01_hoe01_hoe Posts: 273
    I can't speak for immoe, btw I think he said he was leaving for vacation. I am very pleased with my '05 Envoy Denali (SWB) I had an '03 Envoy SLT previously, and I can say the '05 is truly an upgrade. The seats are better, truck is quieter and the 5.3L engine is something I think GMC should have offered as an option for the SWB since day one. Every time I hit the accelerator a bit, I tell myself that the '03 would not perform this well. Since I only have 900 miles on truck, and most in town driving so far, I am getting 15 mpg. When this engine loosens up a bit, it will be awesome. :D
  • goodstargoodstar Posts: 27
    Does anyone know if the warranty for Onstar is different than the rest of the vehicle? Found out after paying for service for 3 years for the safety features I thought were there are not because of a problem on board my vehicle...probably never has worked? TB is 4 years old with 51K miles, dealer tells me warranty is probably only good for 3 years 36K miles.

    Not real happy with Onstar service now... anyone have any ideas?

  • hammen2hammen2 Posts: 1,313
    Made an appointment to get the wife's Envoy SLT in to have the "fan clutch" TSB done (because her Envoy doesn't blow any cool air for at least the first 2-3 minutes of A/C operation). Faxed them the TSB description from this board, and asked them to order the part, so that they could apply the fix once I demonstrate the problem.

    They refused, insisting that I needed to demonstrate the problem for them, then they would order the part, and I'd have to bring it back in.

    I think I'm finding a new dealer... when the vehicle was new, I complained to the service manager (who I was dealing with on my GTO problems, since resolved by a new car) about the rough idle of my wife's Envoy... without seeing the truck, he tells me "my wife has one, they all do that". Less than a week later, the Envoy was on a flatbed to the dealership (SES light flashing)... cracked spark plug from the factory.


    Wish I knew why dealerships played these games,

  • dmathews3dmathews3 Posts: 1,739
    I doubt any dealer will just order a part without first seeing the vehicle as if they did they would be swamped with parts they will never use. If you are so sure this is the fix than you order the part so it is on hand and if that is what is needed they can install it under warranty. If they can fix it without that part then you won't mind paying for it. :shades:
  • 01_hoe01_hoe Posts: 273
    The fan clutch is a common part. Strange why they wouldn't order for you. Dealerships have no concerns about customers time. They think nothing of having a vehicle come in, then find they have to order parts and customer has to return to have installed. Often have to go back again, as repair was not completed to customer satisfaction.
    Also seems a lot of dealers don't like a TSB put in their face. They would rather a technician fumble around with diagnostics (that they charge for) and maybe come up with the correct fix. Service depts should listen more to their customers, afterall it is the customers vehicle being repaired.
  • gmfangmfan Posts: 188
    01_hoe - you are right on. If a dealer puts their financial interests above their customers, then the dealer should be subject to a fine. Some professionals, including myself, take an oath and we are to abide by "reasonable man" ethical conduct, and we would be subject to fines or loose our license if we ever put our financial interest above our clients. The whole dealership service experience is a scam and a racket. I wish I could review some statistics that show the income breakdown for dealers between cars sold and service departmental income. I would imagine the later contributes to 85% of their income, if not more. I have great respect for the certified mechanic, but the service rep at my dealership is now a joke...they used to be good, but of course, employee turnover became a problem. The evasive service repUnfortunately for GM or any car manufacturers, if the dealership is poor, then the OVERALL experience is poor.
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