Question - Tune and Warranty

[63SWC06Z06]

From so many posts, it looks like a tune really wakes the beast up. But will it void my factory warranty?

I kinda know a little about the Magnuson-Moss Act stuff (upgrading brake pads doesn't void warranty on the A/C; burden is on factory to establish denial is within terms of warranty; etc.) But since so many people are getting a tune (and with such great results) I thought maybe this has already been addressed.

Thanks.

[SMFCPACFP]

Seems to me that your best bet would be to call GM customer service, rather than ask someone here.

Wasn't your car beastly enough right out of the box?

[k4site]

I would not touch the car until the warranty is gone. First if the dealership detects mods of the emc I am postive they will void the engine and transmission warranty. You can beat 99.9 % of the cars on the street now. Just my 2cents

[marshall]

Default Dealers and Warranties
Hey all,
This was copied and pasted from another forum

I thought i'd share my recent dealership/warranty experience with you all.

I have a 2000 C5 Coupe (original owner) and purchased GMPP Major Guard a few years ago before the factory warranty expired.
Last week when i was leaving work, my car wouldn't start. First I thought my after market alarm was screwed up but after some troubleshooting I came to the conclusion it was my transmission. It seemed to be stuck between gears and not in Park, hence it wouldn't start.

So i have it towed to a local dealership and got a call from them today to confirm my "shift cable" was indeed broke. I said ok great, my warranty should cover that. I was shocked when the they told me it wasn't covered under the warranty because I had after market modifications on my car and it was going to cost me $546.

I proceeded to ask them which modification they were refering to. I have a K&N Intake, Corsa cat backs, alarm and stereo system. The guy on the other end of the phone said he was referring to my aftermarket intake.

I was floored and asked him politely, how did my aftermarket intake system break my shift cable? His response was he wasn't sure but the service manager ran the "codes" and checked and it wasn't covered because of that.

I quoted him some information from the Magnusson-Moss Warranty act and asked that his service manager call me directly to discuss this.

20 minutes later I get a phone call from the same guy saying, oops they checked again and they made a mistake. Sure enough it was covered under the warranty. I'd like to think this was an honest mistake but i really find it hard to believe and think they were trying to pull one over on me.

Anyhow, the point of this post is to hopefully enlighten some of you that may not be aware that just because you have an aftermarket part it does not automatically void your warranty. The dealer has to prove to you that your aftermarket part caused the damage hence voiding the warranty.

The Magnusson-Moss Warranty - Federal Trade Commission Improvement Act of 1975 protects consumers from such fradulent activity by new car dealers. Under this Act, aftermarket equipment that improves performance does not void a vehicle manufacturer's orginial warranty, unless the warranty clearly states the addition of aftermarket equipment automatically voids your vehicle's warrany or if it can be proven that the aftermarket device is the direct cause of the failure. The easiest way to check this is to look in your owner's manual under, "what is not covered". Under Magnusson-Moss Act a dealer must prove, not just vocalize, that aftermarket equipment caused the need for repairs before they can deny warranty coverage. If they cannot prove such claim-or offer an explanation- it is your legal right to demand compliance with the warranty. The Federal Trade Commission (202.326.3128) administers the Magnusson-Moss Act and monitors compliance with warranty law.

For more info if you're really interested - http://www.ftc.gov/bcp/conline/pubs/...s/warranty.htm


Marshall

[jjwvette]

Great info