GM customer service— am I wrong?

Djmech26 · July 27

Just need to vent a little. 20k miles and 13 months and have symptoms of warped front driver side rotor. However, since I bought the vehicle 10k miles ago, the warranty won’t be honored. I have full service records and it was done at a dealer. What bothers me is if part has a warranty, shouldn’t matter who has the car, the part is defective and it should be replaced, especially if it’s a GM part done by a GM dealer. Maybe I’m wrong, but it would nice if companies would stand by their products.

bobder41 · July 27

I do not know of any manufacturer covering brake rotors after 30 days 5000 miles

rrmccabe · July 27

I agree with Bob. Covering brake parts at 20,000 miles would not be common. Warped brake rotors happen often and not necessarily faulty parts. Driving techniques can warp rotors too.

To be honest the last 10 pairs of rotors I have replaced were not wore out, they were warped and I replaced them because they were annoying.

Jus Cruisin · July 28

Rotors are a wear item just like wiper blades and brake pads. You can warp a rotor with improperly torqued wheels.

PunchT37 · July 29

On 7/27/2024 at 7:01 PM, Jus Cruisin said:

Rotors are a wear item just like wiper blades and brake pads. You can warp a rotor with improperly torqued wheels.

And like driving through water with hot rotors. Wonder how many have done that?

Silverado4x4 · July 29

Or driving through a car wash with hot rotors.

Z45 · July 29

I Agree with others, you are wrong. Rotors are wear parts and not covered under any warranty, oem or extended. Wiper blades, brake pads and rotors, tires etc are considered wear items subject to the conditions under which the vehicle is driven. Believe it or not but some drivers are very hard on brakes, seen it happen on our work trucks. Same drivers always having worn out brakes when compared to other drivers with identical vehicles and no brake problems.

Edited July 29 by elcamino

rrmccabe · July 29

Something else I saw posted on here once that makes sense. You get your disc overheated for whatever reason. Lets say aggressive driving or coming down a big grade. You come to a stop and keep your foot on the brake pedal at a long stoplight of side of road, effectively creating a heat sink in the area of the pad and that area cools at a different rate than rest of rotor which can warp rotors. Cant prove that to be true but have tried to Move the truck a little after a complete stop in situations like that.

When I first started driving we would take rotors and drums to a shop and have them turned when doing a brake job. Now days they are so cheap they don't even want cores back. Can't imagine that materials these days are great anyway.

TrueBlue · August 2

Back in the day rotors were good for at least one turning, most often two. Not today though. They're pretty much disposable items.

Interesting point about the possible heat sink issue. Hadn't thought of it that way, but you're right it does make sense.

newdude · August 3

On 7/27/2024 at 4:02 PM, Djmech26 said:

Just need to vent a little. 20k miles and 13 months and have symptoms of warped front driver side rotor. However, since I bought the vehicle 10k miles ago, the warranty won’t be honored. I have full service records and it was done at a dealer. What bothers me is if part has a warranty, shouldn’t matter who has the car, the part is defective and it should be replaced, especially if it’s a GM part done by a GM dealer. Maybe I’m wrong, but it would nice if companies would stand by their products.

You have a 2019. You have no bumper to bumper left as its only 3/36. Brakes are a consumable. Pads are only under B2B coverage for the first 7500mi within the B2B period from its start date.

If it wasn't sold as certified, then there would be no 1yr GM B2B added onto it, and even then that won't cover brakes.

A 5 year old truck with 20,000mi (or actually I should say 10,000mi in about 4 years prior to your ownership) tells me it sits/sat a lot so the rotors sound like they had a stronger chance of developing corrosion on them or more time to corrode and cause things to stick like the pads in the caliper brackets.

Edited August 3 by newdude

repairman54 · August 3

Plus every time it gets extended parking the rotors rust in a different spot. Rotors rust more when not covered by the pads so uneven rusting occurs.

Dealers even have to replace rotors on brand new vehicles when they sit on the lot for extended periods.

KARNUT · August 3

As humid as it is here just north of Houston if you’re vehicle sits just a few days. You can hear your brakes cleaning the surface rust off the rotor. Our remaining collector car in the garage has a de-humidifier in there because of high humidity.

Edited August 3 by KARNUT