A dealer was just telling me that because my car has been tuned that it voids out my warranty?? This can't be right is it?

I just called into a dealer and the service rep was saying all this???

Is it possible that they could void it? Yes.

Should you find a different dealership that is mod friendly? Yes definitely!!!

Here's a good read on the HP Tuners forum (http://www.hptuners.com/forum/showthread.php?t=13504)about just that issue.

A dealer was just telling me that because my car has been tuned that it voids out my warranty?? This can't be right is it?

I just called into a dealer and the service rep was saying all this???

Anyone telling you tuning does not void the warranty is not being honest. If the dealer is doing what is right to prevent GM paying out for bogus warranty work then switching dealers should get the same answer.

For one due to all the smog functions EPA controls a lot of the code in PCM and federal law says only GM can make code changes.
Since the car was fed tested before being sold to the public any changes to the tune is not what the car was tested to and is void just from that standpoint.

GM makes this clear with several TSB such as :

ID# 2005633

Subject: Warranty Admin. - Use of Parts and Components (Including Control Module Calibrations) Not Issued Through General Motors #07-00-89-043 - (08/23/2007)

Models: 2008 and Prior GM Passenger Cars and Light/Medium Duty Trucks

General Motors tests and validates the genuine GM parts originally installed on it's vehicles, including the control module calibrations GM issues for use in it's vehicles.
Among the many factors GM considers when validating parts and calibrations for it's vehicles are reliability, durability, safety, emissions, fuel economy, and the effect on other components in the vehicle.

Warranty Coverage

General Motors does not warranty non-GM parts and/or calibrations.
The use of Parts and/or Control Module Calibrations not issued through General Motors will void the warranty coverage for those components that are damaged or otherwise affected by the installation of the non-GM part and/or control module calibration.
The only exception is that non-GM parts labeled "Certified to EPA Standards" are covered by the Federal Emissions Performance Warranty.

Or this One :

Document ID: 1886836

#04-06-04-054A: Info - Non-GM Parts and Accessories (Aftermarket) - (Jan 11, 2007)


Subject: Non-GM Parts and Accessories (Aftermarket)


Models: 2007 and Prior Passenger Cars and Trucks

This bulletin is being updated to add models and model years. Please discard Corporate Bulletin Number 04-06-04-054 (Section 06 - Engine).

The recent rise and expansion of companies selling non-GM parts and accessories has made it necessary to issue this reminder to dealers regarding GM's policy on the use and installation of these components.

When a dealer is performing a repair under the New Vehicle Limited Warranty, they are required to use only genuine GM or GM-approved parts and accessories.
This applies to all warranty repairs, special policy repairs or any repairs paid for by GM. Parts and accessories advertised as being "the same" as parts manufactured by GM, but not sold through GM, do not qualify for use in warranty repairs, special policy repairs or any repairs paid for by GM.

During a warranty repair, if a GM original equipment part is not available through GMSPO, ACDelco® distributors, other GM dealers or approved sources, the dealer is to obtain comparable, non-GM parts and clearly indicate, in detail, on the repair order the circumstances surrounding why non-GM parts were used.

The dealer must give customers written notice, prior to the sale or service, that such parts or accessories are not marketed or warranted by General Motors.

It should also be noted that dealers modifying new vehicles and installing equipment, parts and accessories obtained from sources not authorized by GM are responsible for complying with the National Traffic and Motor Vehicle Safety Act.
Certain non-approved parts or assemblies, installed by the dealer or its agent not authorized by GM, may result in a change to the vehicle's design characteristics and may affect the vehicle's ability to conform to federal law.

Dealers must fully understand that non-GM approved parts may not have been validated, tested or certified for use. This puts the dealer at risk for potential liability in the event of a part or vehicle failure. If a GM part failure occurs as the result of the installation or use on a non-GM approved part, the warranty will not be honored.

A good example of non-authorized modification of vehicles is the result of an ever increasing supply of after market devices available to the customer, which claim to increase the horsepower and torque of the Duramax™ Diesel Engines. These include the addition of, but are not limited to one or more of the following modifications:

• Propane injection

• Nitrous oxide injection

• Additional modules (black boxes) that connect to the vehicle wiring systems

• Revised engine calibrations downloaded for the engine control module

• Calibration modules which connect to the vehicle diagnostic connector

• Modification to the engine turbocharger waste gate

Although the installation of these devices, or modification of vehicle components, can increase engine horsepower and torque, they may also negatively affect the engine emissions, reliability and/or durability.
In addition, other powertrain components, such as transmissions, universal joints, drive shafts, and front/rear axle components, can be stressed beyond design safety limits by the installation of these devices.

General Motors does not support or endorse the use of devices or modifications that, when installed, increase the engine horsepower and torque.

These same policies apply as they relate to the use of non-GM accessories. Damage or failure from the use or installation of a non-GM accessory will not be covered under warranty.

Failure resulting from the alteration or modification of the vehicle, including the cutting, welding or disconnecting of the vehicle's original equipment parts and components will void the warranty.

Additionally, dealers will NOT be reimbursed or compensated by GM in the event of any legal inquiry at either the local, state or federal level that results from the alteration or modification of a vehicle using non-GM approved parts or accessories.

Dealers should be especially cautious of accessory companies that claim the installation of their product will not void the factory warranty.
Many times these companies have even given direction on how to quickly disassemble the accessory in an attempt to preclude the manufacturer from finding out that is has been installed.

Any suspect repairs should be reviewed by the Area Service Manager (District Service Manager in Canada) for appropriate repair direction.
If it is decided that a goodwill repair is to be made on the vehicle, even with the installation of such non-GM approved components, the customer is to be made aware of General Motors position on this issue and is to sign the appropriate goodwill documentation required by General Motors.

It is imperative for dealers to understand that by installing such devices, they are jeopardizing not only the warranty coverage, but also the performance and reliability of the customer's vehicle.

Or this One :
Non-GM Parts and Accessories (Aftermarket)
Models: 2008 and Prior Passenger Cars and Trucks

Recent reviews at the Warranty Parts Center indicate the effects of Non-GM Parts usage, charged to GM Warranty. Please refer to Information Bulletin 04-06-04-054A (Service Information Document 1886836).
This Dealer Messenger message is to highlight one matter included in this vital bulletin: unauthorized modification of GM products.

As noted in the bulletin: " Certain non-approved parts or assemblies, installed by the dealer or its agent not authorized by GM, may result in a change to the vehicle's design characteristics and may affect the vehicle's ability to conform to federal law.

Dealers must fully understand that non-GM approved parts may not have been validated, tested or certified for use. This puts the dealer at risk for potential liability in the event of a part or vehicle failure. If a GM part failure occurs as the result of the installation or use of a non-GM approved part, the warranty will not be honored."

Most recently, this involved suspension modification, however, the bulletin applies to the entire vehicle and all systems within.
To prevent unwarranted claims and other unwanted effects described in Information Bulletin 04-06-04-054A, please review the bulletin with Service Department staff and technicians, as well as the Sales and Parts Departments.

And GM has gone so far as to come up with a process to inform dealers how to check if a tune was done like this in part:

PIP4386: Identifying Aftermarket Engine Calibrations (Apr 8, 2008)

Subject: Identifying Aftermarket Engine Calibrations

Models: 2005-2009 GM Passenger Cars

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern:

A dealer may have the need to verify engine calibrations. If a dealer feels an aftermarket power-up calibration has induced engine and/or drive train damage, there is now a way to verify what calibration is currently in the vehicle.

If a suspicious hard part failure is observed in the engine, transmission, transfer case, or driveline, perform the calibration verification described to determine if a non GM issued engine calibration is installed.
Non GM issued engine calibrations subject driveline components to stresses different than those that these components were validated to.
Repairs to transmission, transfer case and / or other driveline components where a non GM engine calibration has been verified, are not covered under the terms of the New Vehicle Warranty.

:eek: :iagree: :iagree: :eek: That might be the most information that I have seen about one subject!! Now I agree that you need to find a "mod" friendly dealership!