Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET1994C 2500 SUBURBAN 2WD V8-454 7.4LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSAIR FLOW METER/SENSOR RELAYTECHNICAL SERVICE BULLETINSSHIFT INDICATOR LIGHT APPLICATION AND OPERATION
1994 Chevrolet C 2500 Suburban 2WD V8-454 7.4L
Shift Indicator Light Application and Operation
1994 Chevrolet C 2500 Suburban 2WD V8-454 7.4LSECTION Shift Indicator Light Application and Operation
File In Section: 7 - Transmission
Bulletin No.: 36-72-07A
Date: February, 1995
Subject:
Manual Transmission Shift Indicator Light Application and Operation
Models:
1993-95 Chevrolet and GMC Truck C/K and S/T Models
with Manual Transmission
This bulletin is being revised to add the 1995 model year. Please discard bulletin number 367207 (Group Reference - Transmission).
Certain trucks are not equipped with a shift indicator light. The shift light is commonly used to achieve improved fuel economy by prompting the driver when to upshift. Depending on the engine/transmission installed in the vehicle, the shift light can have the following characteristics:
^ Indicates proper shift point for maximum fuel economy.
^ Indicates engine over-speed.
^ Shift light is inoperative.
The following charts detail normal shift light operation:

1993 Models:

1994 Models:

1995 Models:
Bulletin No.: 36-72-07A
Date: February, 1995
Subject:
Manual Transmission Shift Indicator Light Application and Operation
Models:
1993-95 Chevrolet and GMC Truck C/K and S/T Models
with Manual Transmission
This bulletin is being revised to add the 1995 model year. Please discard bulletin number 367207 (Group Reference - Transmission).
Certain trucks are not equipped with a shift indicator light. The shift light is commonly used to achieve improved fuel economy by prompting the driver when to upshift. Depending on the engine/transmission installed in the vehicle, the shift light can have the following characteristics:
^ Indicates proper shift point for maximum fuel economy.
^ Indicates engine over-speed.
^ Shift light is inoperative.
The following charts detail normal shift light operation:
1993 Models:
1994 Models:
1995 Models:
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.