View Full Version : Performance mods & warranty

03-06-13, 09:37 PM
What mods are acceptable and what isn't and would void the warranty?

03-07-13, 09:58 AM
I'm not CCC - they will be here fairly soon - but based on past experience my guess is that fuzzy dice are about the only thing you can do without jeopardizing the warranty.

03-07-13, 10:06 AM
I'm not CadCustCare either and I may be wrong here but to the best of my knowledge the following is true:

any mod that causes a failure won't be covered
if it doesn't cause a failure then great

some mods are more likely to cause problems than others
some are probably never going to cause a problem

some dealers know the ins-and-outs of the Mag.Moss Warr.Act
some dealers don't and will give you a hard time

know the law, know your rights, and the facts
and don't be an a-hole when dealing with someone who is ignorant to these facts
know and accept the risk that you're taking and be willing to pay the price if something goes wrong

Cadillac Cust Svc
03-07-13, 10:44 AM
Hi johnnyrako! I'm glad to see Submariner & Ripper have jumped in to help in the meantime! Making modifications to the vehicle can affect vehicle performance and safety, including such things as airbags, braking, stability, ride and handling, emissions systems, aerodynamics, durability, and electronic systems like antilock brakes, traction control, and stability control. These accessories or mods could even cause malfunction or damage not covered by the vehicle warranty. As Rippy mentioned above -- typically, a dealership diagnosis would have to show that the modification caused the concern in order to void its warranty.

You may also want to consult page 17 of the 2012 Cadillac Warranty Manual for further performance modification details. I'll copy/paste that text for you below, which falls under the manual's "Aftermarket Engine Performance Enhancement Products and Modifications" section.

"Some aftermarket engine
performance products and
modifications promise a way to
increase the horsepower and torque
levels of your vehicle’s powertrain.

You should be aware that these
products may have detrimental
effects on the performance and life
of the engine, exhaust emission
system, transmission, and
drivetrain. The Duramax Diesel
Engine, Allison Automatic
Transmission®, and drivetrain have
been designed and built to offer
industry leading durability and
performance in the most demanding

Engine power
enhancement products may enable
the engine to operate at horsepower
and torque levels that could
damage, create failure, or reduce
the life of the engine, engine
emission system, transmission, and

Damage, failure,
or reduced life of the engine,
transmission, emission system,
drivetrain or other vehicle
components caused by aftermarket
engine performance enhancement
products or modifications may not
be covered under your vehicle

If you would like any further assistance, don't hesitate to email me at Katie_Lucille@gmexpert.com!


Cadillac Customer Service