<span class="ev_code_BLUE">I found a posting that details info on GMS & GM Supplier & GMID Certificates.
BTW: Super information written by 5fstop.
</span>
There does seem to be some confusion about GM Supplier Discount, GM In the Driveway (GMID) and GM employee discount (GMS). Probably due to the "S" after GM.
GM Supplier Vehicle Purchase Program (SVPP) allows active employees of an eligible GM supplier to receive a discount that is approximately 2% above invoice.
GMID or GM In the Driveway, is a program GM started a year ago that allows any GM employee (salary or hourly) to obtain two authorization numbers per month for anyone to purchase a GM vehicle. The authorization number cannot be given to anyone who is eligible for the actual GM employee discount.
Either of these two discounts can be used on the vehicles excluded from the employee pricing offer that GM is currently running. These excluded vehicles are:
2005 Corvettes
2005 GTOs
All Medium Trucks
Any vehicle other than a 2005 (that is why the H3 is excluded, it is a 2006 model year).
GM employees are eligible for two different types of discounts:
GM New Vehicle & Company-Owned Vehicle Purchase Programs (NVPP & COVPP)
The COVPP (Company Owned Vehicle Purchase Program) allows active, retired, employees on disability or approved absence (for a period of 12 months) to purchase a new GM driven company car at a large discount that depends on the mileage of the vehicle. (Good example is a few years ago, I purchased a 2001 Corvette with 2900 miles for 35K, and it had a sticker of about 49K.) Spouses and surviving spouses are also eligible for this program.
NVPP (New Vehicle Purchase Program...AKA GMS) allows GM employees, and the following sponsored family members: spouses, surviving spouses, children, siblings (including full/half and step), in-laws (father/mother/brother/sister) and grandchildren; to obtain a GM vehicle at approximately 2% below invoice.
One reason this is called GMS is years ago, GM offered GMO and GMS to their employees. GMO had a greater discount, but it had to be ordered; therefore, it was called GMO, "O" for ordered. The other program at that time was GMS, and it allowed GM employees to purchase a vehicle that was in dealer stock, but the discount was not as good as GMO. The "S" stood for Stock.
A few years ago, GM did away with the GMO and consolidated it what was called GMS.
Dealers and employees still refer to it as GMS, even though it is really known as NVPP.
Some people also started referring to the GM supplier discount as GMS, but that is really incorrect.
SVPP (supplier discount), GMID, and GMS are up to the dealer to accept. They can refuse to sell to anyone on these discounts since the do not make as big of a profit on these vehicles, and in some cases they have been paying floor plan interest on a vehicle a supplier or employee wants to purchase.
Some dealers will accept GMID or supplier discounts but not employee discounts since the dealer makes more money on the supplier and GMID than they do on the employee discount.
The company owned vehicle purchase program can be refused by a dealer too; however, a dealer is foolish to do so, since the dealer is never charged for the vehicle, and the dealer makes 5% of the MSRP for handling the transaction. All the dealer is required to do is pick the car up (if out of state, the employee has to pay the shipping charges), wash the vehicle, and hopefully, change the oil.
Now, are we all confused?