P0894 on Chevrolet
Transmission Component Slipping
P0894 on Chevrolet vehicles indicates transmission component slipping. Au7o has documented this code across 1 Chevrolet model — most commonly on Tahoe. This generic transmission code means the PCM/TCM detected that a rotating component inside the transmission is slipping, by comparing input and output speeds and finding more difference than there should be for the commanded gear. Slippage indicates clutches or bands are not holding properly, which can quickly worsen and damage the transmission through overheating and accelerated wear. It often comes with rough or flaring shifts, reduced power, and overheating, and should be addressed promptly. Typical repair costs on Chevrolet range from $1,500 to $3,500, depending on the specific model and root cause.
Common Causes of P0894
- •Low, dirty, or burnt transmission fluid
- •Worn clutch packs or bands
- •Faulty shift or pressure control solenoid
- •Internal hydraulic/valve body problems
- •Worn torque converter
- •Faulty speed sensors giving false slip readings
- •General internal transmission wear
P0894 on Chevrolet by Model
Chevrolet Tahoe(2 issues)
- 4L60E Automatic Transmission 3-4 Clutch Failure (Loss of 3rd/4th Gear)1995-2010
The 4L60E 4-speed automatic behind the Vortec V8s is the single most common major failure on high-mileage Tahoes. The 3-4 clutch pack is the known weak point: its friction plates burn up, and the truck suddenly slips or drops out of 3rd and 4th gear (RPMs flare with no acceleration), leaving effectively only 1st and 2nd. Later-production units (roughly 2004+) used thinner/cheaper clutch material and tend to fail earlier. Contributing factors include worn shift solenoids, a leaking valve body/accumulator, TCC solenoid failure, and neglected/burnt fluid. Many owners hit this between 120k-180k miles.
- 4L60E transmission loss of reverse (cracked sun shell / worn lo-reverse clutches)1995-1999
The 4L60E automatic behind the 5.7L is prone to losing reverse (and sometimes 2nd) as it ages. The classic root cause is the reaction sun shell ("sunshell") cracking or stripping its splines, along with worn lo-reverse clutches. Slipping typically appears first in reverse and worsens until reverse is gone entirely; a fractured sunshell can also take out 2nd. The 1995 model is a transition year whose transmission does not directly interchange, so a rebuild is generally the only route for those trucks.
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View P0894 across all makes →Frequently Asked Questions
What does P0894 mean on Chevrolet?▼
P0894 stands for "Transmission Component Slipping." This generic transmission code means the PCM/TCM detected that a rotating component inside the transmission is slipping, by comparing input and output speeds and finding more difference than there should be for the commanded gear. Slippage indicates clutches or bands are not holding properly, which can quickly worsen and damage the transmission through overheating and accelerated wear. It often comes with rough or flaring shifts, reduced power, and overheating, and should be addressed promptly. On Chevrolet specifically, this code is documented across 1 model.
What causes P0894 on Chevrolet vehicles?▼
Common causes on Chevrolet: Low, dirty, or burnt transmission fluid, Worn clutch packs or bands, Faulty shift or pressure control solenoid, Internal hydraulic/valve body problems, Worn torque converter. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0894 on a Chevrolet?▼
Repair costs on Chevrolet range from $1,500 to $3,500, depending on the specific model and root cause.
Which Chevrolet models have P0894 documented?▼
Au7o has documented P0894 on 1 Chevrolet model: Tahoe.