Gmc C Series — Electrical
High risk
Mar 10, 2003
Model years: 1998
On certain vehicles, a short in the electric outside rearview mirror switch could develop. If this were to occur, it could result in an inoperative switch, heat damage to the drive
Also affects: Chevrolet Astro, Chevrolet Blazer, Chevrolet C Series, Chevrolet K Series, Chevrolet Suburban
Gmc C Series — Accessories
High risk
Mar 21, 2000
Model years: 1989, 1990, 1991, 1992, 1993, 1994, 1995
On certain vehicles operated in areas of high salt use, the spare tire hoist cable may corrode and eventually break. This would allow the spare tire to fall off the vehicle possibl
Also affects: Chevrolet Astro, Chevrolet C Series, Chevrolet Lumina Apv, Chevrolet Tahoe, Chevrolet Venture
Gmc C Series — Brakes
High risk
Feb 7, 2000
Model years: 1994, 1995, 1996, 1997, 1998, 1999
Certain vehicles equipped with auto-apply park brakes may exhibit an unintended brake apply at speed due to a solenoid coil failure or some may exhibit a failure to release and/or
Gmc C Series — Seats And Restraints
High risk
Jun 9, 1999
Model years: 1992
Certain extended cab pickup trucks equipped with high-back bucket seats may have the seat recliner to seat frame attaching bolts loosen, fatigue and fracture, allowing the seat bac
Also affects: Chevrolet C Series, Chevrolet K Series, Gmc K Series
Gmc C Series — Brakes
High risk
Feb 12, 1999
Model years: 1994
Certain vehicles were built with the polarity of the wiring for the zero adjust brake switch reversed from what was specified. Reversed polarity will cause the contacts of the swit
Also affects: Chevrolet C Series, Chevrolet K Series, Gmc K Series
Gmc C Series — Brakes
High risk
Sep 21, 1998
Model years: 1998
On certain C1500, TAhoe and Yukon vehicles, the rear brake front pipe may contact the the left front fender wheelhouse inner panel just above the chassis frame. This could eventual
Also affects: Chevrolet C Series, Chevrolet Tahoe, Gmc Yukon
Gmc C Series — Fuel System
High risk
Aug 20, 1998
Model years: 1995, 1996, 1997, 1998
On certain crew cab pick ups, the front inner corner of the fuel tank may contact the body sill and over time wear a hole in or crack the fuel tank at the point of contact. This co
Also affects: Chevrolet C Series, Chevrolet K Series, Gmc K Series
Gmc C Series — Visual System
High risk
Jul 22, 1998
Model years: 1994, 1995, 1996
Certain vehicles may have windshield wiper motors with solder joints near the wiring harness connector that could crack. This could cause the windshield wiper to work intermittentl
Also affects: Chevrolet C Series, Chevrolet K Series, Chevrolet S10, Gmc K Series, Gmc Sonoma
Gmc C Series — Emissions
High risk
Mar 18, 1998
Model years: 1996, 1997, 1998
Certain vehicles do not comply with CMVSS 1103 - Exhaust Emissions. Vehicles may been built with the ignition coil wire too close to metal brackets or the transmission fluid fill t
Also affects: Chevrolet Astro, Chevrolet C Series, Chevrolet K Series, Gmc K Series, Gmc Safari
Gmc C Series — Seats And Restraints
High risk
Oct 2, 1997
Model years: 1997
Certain vehicles may not comply with CMVSS 207 - Seat Anchorages. Vehicles may have been shipped with one or two front seat mounting bolts not installed. In a vehicle crash, a seat
Also affects: Chevrolet C Series, Chevrolet K Series, Gmc K Series
Gmc C Series — Steering
High risk
Aug 28, 1997
Model years: 1998
On certain vehicles, the lower steering shaft to steering gear pinch bolt may be "finger loose" or missing. A "finger loose" bolt could continue to loosen and fall out. With the bo
Also affects: Chevrolet C Series, Chevrolet K Series, Chevrolet Tahoe, Gmc K Series, Gmc Yukon
Gmc C Series — Seats And Restraints
High risk
Mar 11, 1997
Model years: 1995, 1996, 1997
Certain vehicles exhibit a condition in which a pinch bolt exists in the recliner mechanism that could trap and pinch a person's hand or finger(s) when the easy entry feature is ac
Also affects: Chevrolet C Series, Chevrolet K Series, Chevrolet Tahoe, Gmc K Series, Gmc Yukon
Gmc C Series — Emissions
High risk
Jan 14, 1997
Model years: 1997
Certain vehicles do not comply with CMVSS 1101 - Emissions. Vehicles were built with an incorrect emission control label. The label incorrectly identifies the engine family name. C
Also affects: Chevrolet C Series, Chevrolet K Series, Gmc K Series
Gmc C Series — Structure
High risk
Nov 26, 1996
Model years: 1996
On certain vehicles, the crankshaft balancer centre attaching bolt was under-torqued. This bolt secures the balancer, which is pressed onto the crankshaft, and the accessory drive
Also affects: Chevrolet C Series, Chevrolet K Series, Gmc K Series
Gmc C Series — Suspension
High risk
Jul 11, 1996
Model years: 1995, 1996
Certain vehicles may have a bead damage to the tires which occurred during tire mounting. The damage to the tire reinforcing structure in the bead "toe" area would likely manifest
Also affects: Chevrolet C Series, Chevrolet G Series, Chevrolet K Series, Gmc G Series, Gmc K Series
Gmc C Series — Suspension
High risk
May 6, 1996
Model years: 1996
On certain vehicles, the four u-bolt nuts on either side of the rear axle may be under torqued. This could cause the bolts to loosen and eventually fall off the u-bolt. Should this
Also affects: Chevrolet C Series, Chevrolet K Series, Gmc K Series
Gmc C Series — Other
High risk
Apr 17, 1996
Model years: 1995, 1996
Certain vehicles may not comply with CMVSS 124 - Accelerator Control Systems. Vehicles may have been assembled with the throttle cable contacting the dash mat. The dash mat may bin
Also affects: Chevrolet C Series, Chevrolet Cab Chassis, Chevrolet K Series, Chevrolet Suburban, Gmc Cab Chassis
Gmc C Series — Seats And Restraints
High risk
Jan 10, 1996
Model years: 1993, 1994
On certain vehicles, the seat recliner to seat frame attaching bolts could loosen, fatigue and fracture, allowing the seat back to suddenly recline. If this were to occur to the dr
Also affects: Chevrolet C Series, Chevrolet K Series, Gmc K Series
Gmc C Series — Steering
High risk
Jan 10, 1996
Model years: 1995
On certain vehicles, the steering column upper intermediate shaft nut may not be torqued to the proper specification. The nut could detach allowing the through bolt that secures th
Also affects: Chevrolet C Series, Chevrolet K Series, Gmc K Series
Gmc C Series — Fuel System
High risk
Dec 28, 1995
Model years: 1996
Certain vehicles may experience a fuel leak at the fuel rail assembly end plug due to an improperly crimped end retainer clip. If this condition were to occur, and an ignition sour
Also affects: Chevrolet C Series, Chevrolet K Series, Gmc K Series
Gmc C Series — Powertrain
High risk
Jul 26, 1995
Model years: 1995
On certain vehicles, the transmission shift cable lock clip may back out of its installed position resulting in loss of cable adjustment. This could cause the transmission to not o
Also affects: Chevrolet C Series, Chevrolet K Series, Gmc K Series
Gmc C Series — Fuel System
High risk
Jun 1, 1995
Model years: 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986
On certain vehicles, the service-part fuel tanks may have one or more pairs of the six projection welds which attach the sender-unit ring to the tank that do not meet specification
Also affects: Chevrolet C Series, Chevrolet K Series, Chevrolet Suburban, Gmc K Series, Gmc Suburban
Gmc C Series — Other
High risk
Mar 27, 1995
Model years: 1995
Certain vehicles may experience an external transmission fluid leak at the lube feed passage due to thin case casting in the cooler boss area. This condition could allow transmissi
Also affects: Chevrolet G Series, Chevrolet P Series, Gmc G Series, Gmc K Series, Gmc P Series
Gmc C Series — Suspension
High risk
Apr 7, 1994
Model years: 1994
On certain vehicles, the left-hand lower control arm to frame rear nut was inadequately torqued. This may allow the attachment bolt to loosen and subsequently fatigue and break. Bo
Also affects: Chevrolet C Series, Chevrolet K Series, Gmc K Series
Gmc C Series — Structure
High risk
Mar 29, 1994
Model years: 1994
On certain vehicles, each side of the weight-distribution trailer hitch was attached by just two of the three specified fasteners. This could allow the hitch to move under towing l
Also affects: Chevrolet C Series, Chevrolet K Series, Gmc K Series
Gmc C Series — Seats And Restraints
High risk
Dec 16, 1993
Model years: 1994
Certain vehicles do not comply with CMVSS 207 - Anchorage of Seats. Vehicles may be missing bolts that connect the upper slave hinge to the seat back frame or bolts that connect th
Also affects: Chevrolet C Series, Chevrolet K Series, Gmc K Series
Gmc C Series — Seats And Restraints
High risk
Sep 24, 1993
Model years: 1993
Certain crew cab pick ups do not comply with CMVSS 207 - Anchorage of Seats. Rear bench seat latch mechanism was riveted to the back frame lower cross tube instead of bolted as spe
Also affects: Chevrolet C Series, Chevrolet K Series, Gmc K Series
Gmc C Series — Brakes
High risk
Sep 13, 1993
Model years: 1994
Certain vehicles were built with a brake pedal push rod retainer missing, mispositioned or not properly seated. This condition could cause the stop lamp switch and the brake booste
Also affects: Chevrolet C Series, Chevrolet G Series, Chevrolet K Series, Gmc G Series, Gmc K Series
Gmc C Series — Powertrain
High risk
Mar 11, 1993
Model years: 1988, 1989, 1990, 1991, 1992, 1993
On certain vehicles, the transmission fluid may be forced out of the vent tube due to heat generation in the transmission caused by trailering heavy loads at high speeds or high-lo
Also affects: Chevrolet C Series, Chevrolet K Series, Gmc K Series
Gmc C Series — Powertrain
High risk
Jul 8, 1992
Model years: 1988, 1989, 1990
Certain vehicles may develop an abnormal pressure build-up in the transmission with the possibility of transmission fluid coming out of the filler tube onto hot engine parts result
Also affects: Chevrolet C Series, Chevrolet K Series, Gmc K Series
Gmc C Series — Powertrain
High risk
Jul 8, 1992
Model years: 1988, 1989, 1990
Certain vehicles may develop an abnormal pressure build-up in the transmission with the possibility of transmission fluid coming out of the filler tube onto hot engine parts result
Also affects: Chevrolet C Series, Chevrolet K Series, Gmc K Series
Gmc C Series — Steering
High risk
Mar 20, 1992
Model years: 1991
On certain C3500HD vehicles, the tie rod may fracture through the damper stud mounting hole. Under moderate to heavy braking or significant power steering pump inputs, the wheel ca
Also affects: Chevrolet C Series
Gmc C Series — Steering
High risk
Jan 13, 1992
Model years: 1985, 1986
On certain C3500, G3 and P30 vehicles, the left hand lower control arm can crack starting at the rear flange and progress to the ball joint mounting hole and eventually cause the l
Also affects: Gmc G Series, Gmc P Series
Gmc C Series — Other
High risk
Nov 8, 1990
Model years: 1990
Certain vehicles do not comply with regulation 6 - statement of compliance. Month/year on label was printed as 01/89 instead of 01/90.
Also affects: Gmc K Series
Gmc C Series — Seats And Restraints
High risk
Sep 25, 1990
Model years: 1989, 1990
Certain vehicles do not comply with CMVSS 209 - Seatbelt Assemblies. Incorrect instructions for rear seat lap-shoulder belts. Correction: Owners manuals will be revised.
Also affects: Chevrolet C Series, Chevrolet K Series, Gmc K Series
Gmc C Series — Other
High risk
Aug 20, 1990
Model years: 1990
Certain crew cab pickups do not comply with regulation 6 - statement of compliance. Certification label not installed.
Also affects: Gmc K Series
Gmc C Series — Brakes
High risk
May 29, 1990
Model years: 1990
On certain vehicles, the pivot bolt, which holds the brake pedal to its support bracket, could disengage from the bracket weld nut resulting in loss of braking action. This could r
Also affects: Chevrolet C Series, Chevrolet K Series, Gmc K Series
Gmc C Series — Fuel System
High risk
Jan 24, 1990
Model years: 1990
On certain vehicles with diesel engines, the front fuel feed and/or return lines can contact the automatic transmission shift linkage cordon shaft and/or, on k models, the front pr
Also affects: Chevrolet C Series, Chevrolet K Series, Gmc K Series
Gmc C Series — Emissions
High risk
Oct 17, 1989
Model years: 1990
Certain vehicles may not comply with CMVSS 1103 - exhaust emissions. Engine cam gear misorientaion.
Also affects: Gmc K Series, Gmc S Series, Gmc Safari, Gmc T Series
Gmc C Series — Suspension
High risk
Sep 14, 1989
Model years: 1989
Certain vehicles do not comply with CMVSS 120 - Tire Selection and Rims
Also affects: Chevrolet K Series, Gmc K Series, Chevrolet C Series
Gmc C Series — Suspension
High risk
Jul 11, 1989
Model years: 1988
Certain C3500 and K1500 vehicles may not comply with CMVSS 110 - Tire Selection and Rims (incorrect tire size infomation on compliance label).
Also affects: Chevrolet C Series, Chevrolet K Series, Gmc K Series
Gmc C Series — Accessories
High risk
Jun 8, 1989
Model years: 1989
Certain C1500, C3500, K1500 and K3500 vehicles may have below specified torque on the optional trailer hitch attaching fasteners. This could allow the trailer hitch to move under t
Also affects: Chevrolet C Series, Chevrolet K Series, Gmc K Series
Gmc C Series — Brakes
High risk
May 19, 1988
Model years: 1988
Certain C2500 and K2500 vehicles with 6.2 Litre diesel engines and thm700 r-4 transmissions the rear antilock brake system could become disabled by an electrical malfunction. The f
Also affects: Chevrolet C Series, Chevrolet K Series, Gmc K Series
Gmc C Series — Other
High risk
Jan 26, 1987
Model years: 1984, 1985, 1986
Certain vehicles do not comply with CMVSS 301 - fuel system integrity. Fuel tank punctured in barrier test.
Also affects: Chevrolet C Series
Gmc C Series — Fuel System
High risk
Jun 6, 1986
Model years: 1984
On certain propane fueled trucks, a crimp on the housing of the 80 percent shut-off valve at the tank, designed to prevent the valve stem from coming out of the housing may be miss
Also affects: Gmc G Series
Gmc C Series — Lights And Instruments
High risk
May 6, 1986
Model years: 1986
On certain vehicles, the push-pull headlight switch may have been manufactured with electrical contacts which allow an intermittent headlight circuit. An intermittent circuit could
Also affects: Buick Estate Wagon, Cadillac Cimarron, Cadillac Deville, Cadillac Fleetwood, Chevrolet C Series
Gmc C Series — Wheels
High risk
Nov 27, 1985
Model years: 1985
On certain vehicles, A wheel failure could develop with a crack through the fillet weld nugget between the disc and rim. This crack could propogate around the wheel eventually resu
Also affects: Chevrolet C Series, Chevrolet K Series, Chevrolet P Series, Gmc K Series, Gmc P Series
Gmc C Series — Wheels
High risk
Nov 27, 1984
Model years: 1984, 1985
On certain C30 vehicles, the Firestone 16x6 disc wheels may crack in the drop centre portion of the rim. If a crack were to occur on a wheel with a tube type tire mounted to it and
Gmc C Series — Steering
High risk
May 20, 1984
Model years: 1984
On certain C30 vehicles, the toe-in may not have been set, nor the tie rod clamp fastened. This condition could in one of the tie rods separating, and if the vehicle was in motion
Also affects: Chevrolet C Series
Gmc C Series — Fuel System
High risk
Apr 25, 1984
Model years: 1984
On certain C20 propane fueled trucks, the swivel nut on the lower fitting of the 80 percent fuel fill line may have developed a crack during assembly. When the 80 percent shut-off
Gmc C Series — Brakes
High risk
Jan 11, 1983
Model years: 1981
Certain C10 and C20 vehicles do not comply with CMVSS116 - hydraulic brake fluid.
Also affects: Chevrolet C Series
Gmc C Series — Label
High risk
Jan 11, 1983
Model years: 1982
Certain vehicles do not comply with section 6 of the motor vehicle safety regulations - statement of compliance.
Also affects: Chevrolet C Series, Chevrolet K Series, Gmc K Series
Gmc C Series — Brakes
High risk
Dec 10, 1982
Model years: 1982
On certain Blazer, Jimmy and C10 vehicles, the rear brake drums may exhibit an interference condition between the rear brake drum balance weights and aluminum wheels. This conditio
Also affects: Chevrolet Blazer, Chevrolet C Series, Chevrolet Jimmy
Gmc C Series — Powertrain
High risk
Aug 24, 1982
Model years: 1982
On certain vehicles, the rear axle shafts may have been improperly heat treated. As a result the shaft may break which could allow the wheel assembly to separate from the vehicle p
Also affects: Chevrolet C Series, Chevrolet K Series, Chevrolet P Series, Gmc K Series, Gmc P Series
Gmc C Series — Brakes
High risk
Jan 14, 1981
Model years: 1979, 1980
On certain vehicles equipped with cacuum power disc/drum brakes may experience brake vacuum booster fatigue cracks. Cracks may propogate to the extent that when a minimum stopping
Also affects: Gmc K Series
Gmc C Series — Electrical
High risk
Jul 14, 1979
Model years: 1979
On certain vehicles equipped with cruise control. The brake stop light and cruise control switch may be assembled with incorrect lubrication on the actuating plunger. This results
Also affects: Buick Century, Buick Electra, Buick Lesabre, Buick Regal, Chevrolet C Series
Gmc C Series — Brakes
High risk
Jan 31, 1979
Model years: 1979
On certain C20 pickup trucks, the front brake hoses may have improperly oriented hose fittings which could cause the right hose to rub against the upper control arm or could leave
Also affects: Chevrolet C Series
Gmc C Series — Wheels
High risk
Aug 22, 1978
Model years: 1978
On certain vehicles equipped with spare tires. The nut on the spare tire assembly carrier support bolt may break and allow the tire and wheel assembly to separate from the vehicle.
Also affects: Chevrolet C Series, Chevrolet K Series, Gmc K Series
Gmc C Series — Suspension
High risk
May 10, 1978
Model years: 1978
On certain C30 pickup trucks equipped with hydraulic power brakes. The left and right hand strut rods (added to the front suspension crossmember and frame rail to give added streng
Also affects: Chevrolet C Series
Gmc C Series — Engine
High risk
Oct 17, 1977
Model years: 1976, 1977
On certain vehicles, heavy or repeated full throttle application can cause the accelerator pedal rod lower end to cut through the carpet or rubber mat and may prevent the throttle
Also affects: Chevrolet C Series, Chevrolet K Series, Gmc K Series
Gmc C Series — Suspension
High risk
Sep 20, 1977
Model years: 1975, 1976
On certain C20, C30, G3, P20 and P30 vehicles, the front suspension lower control arm ball joint sockets were not properly hjeat treated and may cause the ball joint stud to separa
Also affects: Chevrolet C Series, Chevrolet G Series, Chevrolet P Series, Gmc G Series, Gmc P Series
Gmc C Series — Brakes
High risk
Aug 16, 1977
Model years: 1977
On certain C30 vehicles, the master cylinder to hydraulic brake booster attaching bolts may have been over tightened resulting in stripped threads and/or cracking of the booster ca
Also affects: Chevrolet C Series
Gmc C Series — Emissions
High risk
May 27, 1976
Model years: 1976
On certain C10 pickup trucks equipped with 454 cu. In. Engine. Engines have incorrect air injector pipe extensions so that the vehicle will not meet federal emission standards.
Also affects: Chevrolet C Series
Gmc C Series — Wheels
High risk
Feb 11, 1976
Model years: 1960, 1961, 1962, 1963, 1964, 1965
On certain C20 pickup trucks equipped with 15 x 5.50 Kelsey-hayes three piece wheels. These wheels may, without warning, fail by fracturing and breaking while the truck is in motio
Also affects: Chevrolet C Series
Gmc C Series — Wheels
High risk
Sep 4, 1975
Model years: 1975
On certain vehicles equipped with dual rear wheel option. The wheel side ring will not properly seat on the wheel rim due to differences in size and configuration.
Also affects: Chevrolet C Series, Chevrolet P Series, Gmc P Series
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