Chevrolet Spark EV (BEV) 1ET35 Transmission Fluid Appears Overheated Or Dark In Color – 2014-2016 Chevrolet Spark EV

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Bulletin No.: PIP5295B
Published date: 06/17/2019
Preliminary Information
PIP5295B Chevrolet Spark EV (BEV) 1ET35 Transmission Fluid
Appears Overheated Or Dark In Color
Models
Brand: Model: Model Years:
VIN:
Engine: Transmissions:
from to
Chevrolet Spark EV 2014 – 2016 All All N/A MME
Supersession Statement
This PI was superseded to update the wording and format. Please discard PIP5295A
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition / Concern
A technician may comment that the Dexron HP synthetic fluid in the 1ET35 Transmission appears to be overheated or extremely dark in color.
Recommendations / Instructions
DO NOT replace the Transmission, Transmission Cooler or recommend flushing the Transmission or Transmission Cooler based only on the appearance of the Transmission Fluid.
If the Transmission is operating as designed (no noise or vibration from the Transmission when operated, no debris is found in the fluid the Transmission, etc.) but there is a DTC found, follow current Global Service Information (G.S.I.) diagnostic procedure or continue with diagnosis of the concern.
The Transmission Fluid in the 1ET35 may turn dark after mileage is accrued on the vehicle. If the transmission fluid appears dark, do not assume that the transmission is damaged internally.
The photo below is an example showing a comparison between new and used Dexron HP fluid and extreme discoloration found in a perfectly operating unit after 15,000 miles of operation.
Please Take a Sample and compare it to the Picture.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is
resolved without completing every step, the remaining steps do not need to be performed.

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