#Pirelli, @OnStarConnect, @Cadillac Roadside Assistance, @FrankKent & STS-V

On the way home from Fort Worth to Plano this morning in my 2008 Cadillac STS-V I began to hear a loud “wap-wap-wap” sound.  I looked for a safe spot to exit the highway, then pulled into a parking lot to investigate.

Pirelli Eufori tire tread problem left front tire from the back looking front

Now, I am not a tire expert but I am certain the tire should not have part of the tread hanging off.

The STS-V is a performance sedan and uses Pirelli Eufori extended mobility runflat performance tires, in sizes 255/45-18 on front and 275/40-19 in back.  There is no spare, since the run flats can get you to the next place without going flat, and the wheel/tire sizes are different front to back (so no one size fits all).

I used the OnStar button to discuss with OnStar and to get Roadside Assistance.  Roadside Assistance arranged for a tow truck to come and take the STS-V to the nearest Cadillac Dealer, in this case Frank Kent Cadillac in Fort Worth.

STS-V loaded on flatbed tow truck

The Tow truck arrived in about an hour from the first call to OnStar, which is good service for a Sunday.  Unfortunately, Frank Kent is not open this morning, but the advantage of having the Cadillac taken to a Cadillac dealer is that they have a secure lockup for delivery after hours.

So, my son came and picked me up from the stopped spot.  If I were further afield I would have had to take a taxi to a rental car place and get a rental car setup for the duration.  I believe the Cadillac coverage would cover the rental car fee.

Tread on the front tires didn’t look bad except for the ripped part.

Right Front Tire from the Front looking back

Left Front Tire from the Front looking back

So I am not sure what caused the tire to have this sort of failure.  The tires had 18K miles on them when I purchased the car, and have 19.2xx on them now.  I assume they are the original equipment tires that came with the STS-V.

Next will be to talk to Frank Kent to determine the correct replacements.  The Pirelli’s run $377 each for the fronts, and $488 ea for the rears at discounttire.com

The trade off on run-flats is they have somewhat worse performance, but they don’t leave you stuck beside the road.  This morning I felt stuck beside the road, so I am not sure I want to put run-flats on again for the new tires.  With the V at the Dealer though I’ll have to see what the choices are.

My experience with OnStar was good.   They were helpful, polite, and got me connected to who I needed to talk to.

Cadillac Roadside assistance was helpful and got the car to the right place to be serviced. We discussed various options — such as which Cadillac dealer to tow to, or whether to tow to a tire store instead.

The Towing company sent the right kind of truck for the V, and the Driver took appropriate care to get the V up on the truck without scraping the front spoiler.

OnStar, Cadillac Roadside service, and the Towing Company all communicated clearly back to me.

I wish roadside assistance worked where a van pulled up with a new rare tire, and ready to mount it on the wheel.  Unfortunately, that’s not happening.  But I am glad that I was able to get the car lined up for repair and I got back home safely.

4 thoughts on “#Pirelli, @OnStarConnect, @Cadillac Roadside Assistance, @FrankKent & STS-V

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