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 B1405 (Rear park assist - ud7): control module
voltage reference output 2
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 Descriptors
D
Coolant system flushing
NOTE:
Do not use a chemical flush.
Store used coolant in the proper manner, such as in a used engine
coolant
holding tank.
Do not pour used coolant down a drain. Ethylene glycol antifreeze is
a
very toxic chemical.
Do not dispose of coolant into the sewer system or ground water. This
is
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