Chevrolet Trax: Description and operation
Chevrolet Trax (2013-2022) Workshop Manual / Transmission / Automatic Transmission - 6T40 (MH8 MHB) / Description and operation
- Definitions and abbreviations
- Transmission general description
- Electronic component description
- Automatic transmission hydraulic diagrams
- Park - Engine Running - Gen 2/Hybrid
- Neutral - Engine Running - Gen 2/Hybrid
- Drive Range, First Gear Engine Braking - Gen 2/Hybrid
- Drive Range, First Gear - Gen 2/Hybrid
- Drive Range, Third Gear - Gen 2/Hybrid
- Drive Range, Fourth Gear - Gen 2/Hybrid
- Drive Range, Fourth Gear Default - Gen 2/Hybrid
- Drive Range, Fifth Gear - Gen 2/Hybrid
- Fluid passages (GEN 2/HYBRID)
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Definitions and abbreviations
Throttle Positions
Engine Braking
A condition where the engine is used to slow the vehicle by manually
downshifting during a zero throttle
coastdown.
Full Throttle Downshift
A quick apply of the acce
Transmission general description
The Hydra-matic 6T40/45/50 is a fully automatic, 6-speed, front-wheel drive,
electronic-controlled
transmission. It consists primarily of a 4-element torque converter, a compound
planetary gear set,
Electronic component description
Control Solenoid Valve Assembly
Fig. 2: View Of Control Solenoid (W/Body & TCM) Valve Assembly
Manual Shift Detent Lever with Shaft Position Switch Assembly
Fig. 3: View Of Manual Shift Dete
SEE MORE:
DTC B3984: Device 1 environment identifier not programmable
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
Diagnostic Procedure Instructions provides an overview of each
diagnostic category.
DTC Descriptor
DT
Tire Pressure
Tires need the correct amount of
air pressure to operate
effectively.
Caution
Neither tire underinflation nor
overinflation is good.
Underinflated tires, or tires
that do not have enough air,
can result in:
Tire overloading and
overheating which could
lead to a blowout.
Premature or
irregular
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