Has anyone experienced lack of power when reversing off road against a steep uphill?
Since the hybrid reverses only on electrical motors(no reverse gear), it seems some times the power is not enough to back up the vehicle in a very steep terrain.
Also when 4x4 is engaged does it affect the power specially when backing up on EC mode ?

A friend of mine's yukon stalled when backing it up in a steep uphill off road, and he had to turn around in order to go uphill forward!!

any feedback on the above is appreciated.

Is the purpose of the back exhaust resionator to reduce noise?:confused:

I have had the drivers outside door trim strip replaced becasue it was peeling back. I noticed today that the same thing is happening on the passengers door. GM replaced the drivers side under warranty. Is anybody else seeing this?:(

Does any have any wax recomendations for a Black Tahoe Hybird?

I have notice that sometimes my Nav Display CD will run off and on several times and then stop. I have no problems with the Nav system now that I know how to use it. Just wondering if other owners have experienced this?

I didn't want to give out my observations till i had driven it a week
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1. it actually does seem to transition between gears more smoothly.

2. it seems to me to be easier to get into 4v mode in town. I have been paying attention to it and if you don't accelerate hard it wil go through the gears and then drop to 4v mode at lower speeds than it used to.

3. hard acceleration seems to have a new optimal throttle position. before the recall it would accelerate very hard if you punched it to 3/4 or so throttle. as a matter o fact it accelerated better than if you floored it. that point is now slightly different and i'm still trying to find the optimal throttle position for stoplight drag racing! (no not really)

I would be interested in others experiences of the above observations.
:zip:

Hello, for all those canadian owners there is a PST tax rebate. This is good from 2007 to 2012. You have four years to apply and you can get back a maximum of $2,000. I just completed the application today. You need to send your sales contract along with your ownership and application. The form is on the Ontario tax revenue web site. I believe that there is something also offered in BC as they are generally more environmentally savy than us.

Good Evening All,
I am completing the following modifications to my Tahoe Hybrid:P:
1.) Pulstar Plugs
2.) New spark plug leads
3.) Volant Air Box System
4.) HID 8000K headlights Low Beam
I will let all know what performance and MPG increase I see. I am looking (Hoping) for 35HP and 4 MPG.
Kind Regards Ken

I have a 2008 Tahoe Hybrid. The brakes failed the first time causing us to rear-ended another vehicle. It was at low speed and there was no damage so no report was written. We thought it was a one-time thing until we started to drive off and the brakes failed again, sending us over a curb and into a nearby parking lot.

I took it to Coggin Chevy in Jacksonville, FL where they looked at it and found nothing wrong. They blamed it on wet roads...although it was not raining when the incident occurred.

A few days later after they found "nothing wrong", I was slowing for a red light and the brakes failed again. I almost hit another vehicle but was able to swerve at the last second...it scared the cr*p out of me. I pulled over, turned the car off and back on again and decided to try and make it home (about 2 miles). As I neared my home, the brakes failed again causing me to take a corner at approximately 40 mph.

Coggin Chevy took my vehicle back in and kept it for a few weeks. They replaced every brake part possible. After the repairs, one of the employees drove it home to test it and the brakes failed on him. I think they had my car in for about 3 - 4 weeks total.

So, here I am a month later and the brakes failed AGAIN! This time exiting from the interstate, slowing on an off-ramp...nearly crashing into another vehicle. This is madness. I will have it at the dealership tomorrow.
Oh, and when the brakes failed the last two times, I took pictures of the dash lights and readout for evidence. "Service Stabilitrak" seems to be the recurring theme. My email is Trock55@hotmail.com if anyone wants to see the pics.

We've had our tahoe for about a year now, and there's really been only one big problem. The brakes let out this horrible screech when it is cold outside and the car hasn't warmed up yet. and it is not just a little squeak, its loud, and it turns heads. it only does it when its cold, and it might be 55 degrees outside when it does it only once or twice. when it gets real cold it can do it for the whole ride. sometimes, you can break hard and it will stop. We've taken it to the dealership, and they said," Your just gonna have to live with it." Which is not acceptable. If you have any ideas why it squeaks when you hit the brake in cold weather, please let me know. you will be greatly appreciated.

Has anyone had this problem?

My Tahoe Hybrid was one year old in October. I bought one of the last 08 models available.

The first time I brought it in for service, the technician told me that the wiring harness had been chewed through, presumably by rodents, and that I really should replace it. This is the big, high voltage wiring loom in the engine compartment that goes from a voltage regulating unit down to the electric motors in the transmission. The work would not be covered by warranty, and would be expensive.

I have postponed the work. I really don't want to spend the money. So far, the car works fine. But, copper is exposed on some of the wires, and I really should do something about it before there are real problems.

I have several cars, have lived in the same house for years, drove and parked the Tahoe in the same places as the other cars. I have never had a nibble in any other vehicle, let alone needed to replace the whole wiring harness. Also, there is a large bag of dog food stored in the garage right next to the Tahoe's parking space. The bag is closed, but not sealed. I would think that a rodent would crawl in there or chew through the bag long before devouring wiring insulation ...

Is there something about these large tasty cables that rats like? Has this happened to anyone?

I have another theory, but I don't know if I can prove it. When I bought the car, the dealer and I negotiated a price based on current incentives. We were talking about a specific car in his inventory. When he went to process the deal, he realized that the car was an 09, and some of the incentives were not available. I was going to walk away from the deal. He found an 08 with the right equipment combination (delete sunroof and entertainment system) at another dealer and did a dealer trade. I came back a couple of days later to take delivery, and had to wait. The car was late. They hurried to prep the car. Did they inspect the car thoroughly? Was the wiring already damaged while sitting at the other dealership? I never even opened the hood. Lesson learned!

Any insight or information will be appreciated!

Has anyone completed the newly received recall notice "Your GM dealer will reprogram the transmission controller to reduce the clutch pressure"?:omg:

Now with 30,000 miles, I got a "Check Hybrid System" Warning on DIC.

Dealer said code was "Hybrid battery overtemp". Supposition was that the cooling fan for the rear battery pack had failed or malfunctioned.

However rear battery pack cooling system checked out OK. On further inspection technician found that my wife's "neck pillow" which she uses on long trips had found it's way underneath the rear seat and was blocking the air intake to the cooling fan which is on the floor under the rear seat (2nd row).

Apparantly, while attending a funeral recently and giving 3 other family members a ride to the cemetery, they moved the pillow to the floor off the rear seat where it normally resides. It ended up blocking the cooling fan inlet.

So...... the rear seat area, and especially the floor, needs to be kept clear of other possible junk like snow brushes, snow scrapers, neck pillows and blankets, which, over time, could migrate and block the cooling fan intake port.

BTW, on long trips we place a small cooler between the rear seat and the front center console and this presents NO problem, and will continue to do so.

Being somewhat embarrased by the neck pillow incident I was relieved by the embarrasment of the Service Writer when he automatically suggested that it might be time to do the 30,000 mile service proceedures....like changing the Tranny fluid....probably after seeing an automatic prompt on his computer screen. When I queried him on what type of ATF the Electric Hybrid Tranny uses he got a blank look on his face. "Ohhh....I'll have to check on that," he said. I told him to go ahead and change it but they needed to show me proof of the correct type recommended for the Hybrid.

When settling the bill he told me that they deferred changing the Tranny fluid because they decided it would take too long to get at the fill port on the Tranny. What a lame excuse !!

I just spent the month in Europe. i rented a BMW something or other diesel 4 door. not a bad car at all but the BMW NAV system makes my Yukon system look like it came from toys are us. The BMW system was so user friendly and the remote (center console) rotary input knob is (after you get used to it) easy enough to use while driving through Paris. Buy a BMW and copy the system, it is VERY GOOD!
:zip:

I have a 2009 Yukon Hybrid and I also agree the headlights are wimpy. I hit my second deer in 6 weeks. Thinking about upgrading to the DDM 55Watt HID Hi/Low set up, but also would like some wider lights to see the horny creatures while they are on the shoulder. My dealer says no way, no add on's no accessories, they refuse to install some PIAA units (I bought from them!) Has anyone installed a set? Zone office tells me APM is not sized for accessories and the "sophisticated" architecture is a problem. Seems the new Denali Hybrid and the Escalade can have them. Any thoughts?