S10/T10 Blazer 4WD V6-262 4.3L VIN Z (1994)
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2HI to 4LO
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4HI to 4LO
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4LO to 4HI
A range shift from 4L0 directly to 2HI cannot be made. The operator must first make range shift from 4LO to 4HI, then a mode shift from 4HI
to 2HI.
A range shift can only be made with the automatic transmission in neutral or with the manual transmission clutch fully depressed. The vehicle
speed must also be below three miles per hour before the shift can occur.
Whenever a shift into 4LO is initiated, the amber 4LO status lamp flashes and continues to flash until the TCCM completes the shift (or until
30 seconds elapses). The 4LO status lamp must glow steadily before the vehicle transmission is shifted into gear or before the clutch pedal is
released. If a range shift is initiated when the transmission is engaged or when the vehicle speed is above 3 mph, the 4LO status lamp flashes
for 30 seconds and no range shift actually occurs; the system returns to the position before the shift was initiated.
