THIS BULLETIN CANCELS AND SUPERSEDES CAMPAIGN BULLETIN 90C22 AND SUPPLEMENT 90C22(a) ISSUED JUNE, 1990 AS WELL AS SUPPLEMENT 90C22(b) ISSUED JULY, 1990. THE DEFECT INVOLVED, PARTS INFORMATION, SERVICE PROCEDURE AND CLAIM INFORMATION SECTIONS HAVE BEEN REVISED. ADDITIONALLY, A SPECIAL TOOLS SECTION HAS BEEN ADDED. ALL COPIES OF THE ORIGINAL BULLETIN AND ITS SUPPLEMENTS. SHOULD BE DESTROYED. REVISED INFORMATION IS SHOWN IN BOLD TYPE AND DENOTED BY A # SIGN. The National Traffic and Motor Vehicle Safety Act, as amended, provides that each vehicle which is subject to a recall campaign of this type must be adequately repaired within a reasonable time after the owner has tendered it for repair. A failure to repair within sixty (60) days after tender of a vehicle is prima facie evidence of failure to repair within a reasonable time. If the condition is not adequately repaired within a reasonable time, the owner may be entitled to an identical or reasonably equivalent vehicle at no charge or to a refund of the purchase price less a reasonable allowance for depreciation. To avoid having to provide these burdensome solutions, every effort must be made to promptly schedule an appointment with each owner and to repair their vehicle as soon as possible. As you will see in reading the copy of the letter that is being sent to owners, the owners are being instructed to contact the Chevrolet Customer Assistance Center if their dealer does not remedy the condition within five (5) days of the mutually agreed upon service date. If the condition is not remedied within a reasonable time, they are instructed on how to contact the National Highway Traffic Safety Administration.

Defect Involved
General Motors has determined that a defect which relates to motor vehicle safety exists in some 1984-90 Chevrolet Camaro model vehicles. Some seat belt buckle assemblies in affected vehicles may not latch, or may not release, due to fracture of the red push button which can occur during seat belt connection or disconnection. These buckle malfunctions would prevent a person from using his seat belt system, and the risk of injury to an unbelted person in an accident would be increased. To correct this condition, all involved vehicles vill have the pushbutton assemblies replaced and have a protector shield added (except for certain 1989 and all 1990 vehicles which have revised lower cover ramps and as a result do not need protectors). Also, any buckle assemblies. which are found not to function correctly, or which have fractured pushbuttons, will be replaced.

Vehicles Involved
Involved are 1984-90 Chevrolet Camaro model vehicles built within the following VIN breakpoints:

YEAR	MODEL	PLANT	CODE	FROM	THROUGH
1984	F-Car	Van Nuys	"L"	EL100001	EL260862
1984	"	Norwood	"N"	EN100001	EN200729
1985	"	Van Nuys	"L"	FL100001	FL503767
1985	"	Norwood	"N"	FN100001	FN176251
1986	"	Van Nuys	"L"	GL100001	GL203446
1986	"	Norwood	"N"	GN100001	GN188773
1987	"	Van Nuys	"L"	HL100001	HL151936
1987	"	Norwood	"N"	HN100001	HN185824
1988	"	Van Nuys	"L"	JL100001	JL196275
1989	"	Van Nuys	"L"	KL100001	KL210470
1990	"	Van Nuys	"L"	LL100001	LL134987

Involved vehicles have been identified by Vehicle Identification Number Computer Listings. Computer listings contain the complete Vehicle Identification Number, owner name and address data, and will be furnished to involved dealers as owner notification (by model year) of this revised recall action begins. Owner name and address data furnished will enable dealers to follow-up with owners involved in this campaign. These listings may contain owner names and addresses obtained from State Motor Vehicle Registration Records. The use of such motor vehicle registration data for any other purpose is a violation of law in several states. Accordingly, you are urged to limit the use of this listing to the follow-up necessary to complete this campaign. Any dealer not receiving a computer listing with the campaign bulletin has no involved vehicles currently assigned.

Owner Notification and Dealer Responsibility
Owners will be notified of this campaign on their vehicles by Chevrolet Motor Division (see copy of example owner letter in this bulletin). This second mailing to owners will be scheduled as parts become available. Dealers are to service all vehicles subject to this campaign at no charge to owners, regardless of mileage, age of vehicle, or ownership, from this time forward. Whenever a vehicle subject to this campaign is taken into your new or used vehicle inventory, or it is in your dealership for service in the future, you should take the steps necessary to be sure the campaign correction has been made before reselling or releasing the vehicle. Owners of vehicles recently sold from your new vehicle inventory are to be contacted by the dealer, and arrangements made to make the required correction according to instructions contained in this bulletin.

Parts Information
Parts required to complete this campaign are to be obtained from General Motors Service Parts operations (GMSPO). To ensure these parts will be obtained as soon as possible, they should be ordered from GMSPO on a "C.I.O." order with no special instruction code, but on an advise code (2).

PART NUMBER	DESCRIPTION	QUANTITY/VEHICLE
14097930	Push Button Kit Each Kit Includes: 4 Push Buttons 4 Button springs 4 Protector Shields	1

For those vehicles which experience pushbutton fractures, dealers will need to order individual buckle assemblies as listed on the following pages. Note that 1984 vehicles with fractured brown or charcoal buckle assemblies MUST have all four (4) seat belt buckle assemblies replaced with black seat belt buckle assemblies due to color availability.

DEALERS ARE TO RETURN ALL SERVICE INVENTORY OF PART NUMBERS 12507818 THROUGH 12507829 & 12507997. PLEASE IDENTIFY AS A SPECIAL RETURN ON YOUR PC659 DOCUMENT.

Seat Belt Buckle Assemblies: Determine proper buckle color to order from the chart below:

INTERIOR COLOR IS:	REPLACEMENT COLOR IS:
1984 Vehicles:
Charcoal	Black (Replace All Belts)
Blue	Dk. Royal Blue
Tan	Lt. Saddle
Lt. Gray	Lt. Sand Gray
Brown	Black (Replace All Belts)
1985-87 Vehicles:
Black	Black
Tan	Lt. Saddle
Gray	Med. Dark Gray
Red	Dk. Carmine
Brown	Russet
1988-89 Vehicles:
Black	Black
Tan	Beachwood
Gray	Med. Dark Gray
Red	Dk. Carmine
1990 Vehicles:
Black	Black
Tan	Beachwood
Gray	Med. Dark Gray
Red	Flame Red

ORDERING SPECIFICATIONS

Part Number	Description	Model Years	Quantity/Vehicle
**** Black ****
(For 1984 vehicles with brown or charcoal buckle assemblies in which a red pushbutton has fractured, all four (4) seat belt buckle assemblies must be replaced with black seat belt buckle assemblies.)
12504429	Left Front Buckle Assm.	1984-90	As Required
12504428	Right Front Buckle Assm.	1984-90	As Required
12504424	Rear Buckle Assm.	1984-88	As Required
12504436	Rear Buckle Assm.	1989-90	As Required
****Med. Dark Gray****
12504435	Left Front Buckle Assm.	1985-90	As Required
12504434	Right Front Buckle Assm.	1985-90	As Required
12504426	Rear Buckle Assm.	1985-88	As Required
12504439	Rear Buckle Assm.	1989-90	As Required
****Lt. Saddle****
12504417	Left Front Buckle Assm.	1984-87	As Required
12504416	Right Front Buckle Assm.	1984-87	As Required
12504421	Rear Buckle Assm.	1984-87	As Required
**** Dk. Carmine****
12504415	Left Front Buckle Assm.	1985-89	As Required
12504414	Right Front Buckle Assm.	1985-89	As Required
12504425	Rear Buckle Assm.	1985-88	As Required
12504427	Rear Buckle Assm.	1989	As Required
**** Dk. Royal Blue****
12504407	Left Front Buckle Assm.	1984	As Required
12504406	Right Front Buckle Assm.	1984	As Required
12507476	Rear BuckIe Assm.	1984	As Required
**** Lt. Sand Gray****
12504409	Left Front Buckle Assm.	1984	As Required
12504408	Right Front Buckle Assm.	1984	As Required
12507477	Rear Buckle Assm.	1984	As Required
**** Russet ****
12504419	Left Front Buckle Assm.	1985-86	As Required
12504418	Right Front Buckle Assm.	1985-86	As Required
12504422	Rear Buckle Assm.	1985-86	As Required
**** Beachwood****
12504431	Left Front Buckle Assm.	1988-90	As Required
12504430	Right Front Buckle Assm.	1988-90	As Required
12504423	Rear Buckle Assm.	1988	As Required
12504437	Rear Buckle Assm.	1989-90	As Required
**** Flame Red****
12504433	Left Front Buckle Assm.	1990	As Required
12504432	Right Front Buckle Assm.	1990	As Required
12504438	Rear Buckle Assm.	1990	As Required

Special Tool Kit and Instructional Video Each dealer will be shipped a Pushbutton Removal Tool Kit (J-38886) and instructional video tape for this campaign. This package is being furnished at no charge to dealers and will be mailed out during the week of February 25, 1991. Each package will be identified with Chevrolet Campaign Number 90C22(c). Each J-38886 Kit will contain:

Tool Number	Quantity/Vehicle	Description
J-38886-1	1	Pushbutton Removal Tool
J-38886-2	1	Spring Installation Tool

Additional tools, if desired, may be purchased by contacting the Kent-Moore Tool Company at 1-800-345-2233. The instructional video tape included in this package demonstrates the service procedure described on the following pages. Mechanics should be certain to view this video tape before attempting to perform the service procedure.

Service Procedure

This procedure must be performed on all 4 buckle assemblies to complete the campaign

1. Inspect all 4 buckle assemblies for the following:

* Improper Function - Fasten seat belt by inserting latchplate into buckle. Pull on belt webbing to ensure proper latching. Release latch. Repeat five times for each buckle to insure proper operation.

* Missing or Fractured Red Pushbutton - Figure # 1 illustrates a typical fracture.

* If the buckle does not function correctly, or if the red pushbutton is broken, replacement of that buckle is required - see Body Service Manual for procedure (seat belt section). NOTE THAT ON 1984 VEHICLES WITH BROWN OR CHARCOAL BUCKLE ASSEMBLIES, IF A PUSHBUTTON DOES NOT FUNCTION PROPERLY, OR IT IS BROKEN, ALL OF THE BUCKLE ASSEMBLIES MUST BE REPLACED WITH BLACK BUCKLE ASSEMBLIES DUE TO COLOR AVAILABILITY.

* If the pushbutton in not broken, and the buckle functions properly, continue on to step 2. BE CERTAIN TO CHECK ALL BUCKLES.

2. Remove pushbutton by inserting pushbutton removal tool (J-38886-1) under the edge of the pushbutton in a horizontal position and then rotate tool to a vertical position. See Figure 3.

NOTICE: Screw tip must be backed out towards top of tool to allow proper clearance for tool insertion.

Finger tighten screw until the screw head has bottomed out on the tool. Be certain to keep tool as vertical as possible.

NOTICE: Pushbutton may fracture at this time - this is acceptable.

Gently rock the tool in a side-to-side motion as shown in Figure # 3 to dislodge the pushbutton cap. DO NOT PRY TOOL ON EDGE OF BUCKLE.

3. Inspect the just removed pushbutton for any fractures. Figure # 2 illustrates a typical pushbutton fracture.

* If pushbutton is not fractured, continue to step 4.

* If pushbutton is fractured, locate the fractured piece and insure that it is not in the buckle mechanism as it may interfere with buckle operation when reassembled. Continue on to step 4 when this is completed.

4. Discard removed pushbutton (and any fractured pieces).

5. Inspect pushbutton spring inside buckle to determine if it is still secured under the pushbutton retainer (black). See Figure # 4.

* If pushbutton spring is secure, continue to step 6.

* If the spring is not secure, reposition the original spring (or install replacement spring if the original was lost or damaged in the removal of the pushbutton cap) using the spring installation tool (J-38886-2).

Install the pushbutton spring on the spring installation tool as illustrated in Figure # 5.

NOTICE: The opposite end of the spring installation tool may be used as a hook, if necessary, to aid in positioning the pushbutton retainer (black) - see Figure # 6.

Install the pushbutton spring on the detent lever. Note that there are two different detent lever designs using either one or two retaining nubs - Figure # 7. The pushbutton spring must be positioned over the retaining nub(s) on the detent lever and secured under the pushbutton - Figure # 8.

6. Install a new pushbutton from the service kit by inserting spring installation tool between buckle cover and pushbutton retainer to move the button away from the cover - see Figure # 9. Locate now red pushbutton to the pushbutton retainer and push into position until an audible "CLICK" is heard. Remove the tool from the buckle assembly.

NOTICE: Pushbutton should now move up and down freely. If it does not, repeat stops 2-6 to remove and reinstall pushbutton.

7. Buckle protector installation.

NOTICE: Buckles in some 1989 vehicles and buckles in all 1990 model year vehicles will not require the installation of buckle protectors. To determine if protectors are needed on 1989 vehicle buckles, note the assembly date stamp on the lower cover - Figure # 10. If the stamp on the buckle is after 120489 (April 12, 1989), it will not require a protector. These buckles have revised lower cover ramps and do not need an additional protector.

After determining if a vehicle requires protectors, position stainless steel protector onto buckle lower cover - Figure # 11. Push steel protector onto cover until it snaps securely.

8. Perform final inspection of safety belt by inserting the latchplate into the buckle and pulling on the safety belt webbing to insure proper latching. Unlatch and repeat this step five times to assure proper operation.

9. Install Campaign Identification Label.

Campaign Identification Label:

Each vehicle corrected in accordance with the instructions outlined in this Product Campaign Bulletin will require a "Campaign Identification Label." Each label provides a space to include the five (5) digit dealer code of the dealer performing the campaign service. This information may be inserted with a typewriter or a ball point pen.

Each "Campaign Identification Label" is to be located on the radiator core support in an area which will be visible when the vehicle is brought in for periodic servicing by the owner.

Apply "Campaign Identification Label" only on a clean, dry surface.