# Service bulletin 21\-035\-20

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10176569
- Published by NHTSA: 2020\-06\-22
- Manufacturer's number: 21\-035\-20
- Manufacturer's date: 2020\-05\-08
- NHTSA component: ENGINE AND ENGINE COOLING; POWER TRAIN; ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE

## NHTSA's summary

Flash: Transmission Control Module \(TCM\) Update This bulletin involves reprogramming the TCM with the latest available software. Some customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation, a technician may find thefollowing Diagnostic Trouble Codes \(DTCs\) have been set:P0002\-00 \- Fuel Volume Regulator "A" Control Circuit Performance. P026E\-00 \- Charge Air Cooler Coolant Pump Performance. P1066\-00 \- Cylinder 1 Oil Supply Solenoid Valve Switch Off Time Out Of Range. P26E4\-00 \- Starter Relay "B" Circuit. P2B61\-00 \- Engine Coolant Flow Control Valve Stuck Closed. P2BC1\-00 \- Lt Water Pump Smart Driver Module. U1008\-00 \- LIN 1 Bus. Enhancements to this software release:Transmission shift quality improvements. In addition, the following improvement is also available:Turbo coolant pump after run duration and on\-off strategy update, to improveturbo O\-ring durability.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10176569-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10176569-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Engine, Fuel system, Transmission and driveline

## Trouble codes named

P0002, P026E, P1066, P26E4, P2B61, P2BC1, U1008

## Vehicles listed

- CHRYSLER CHRYSLER
- CHRYSLER CHRYSLER TRUCK

JSON: [/v1/bulletins/10176569](/v1/bulletins/10176569)

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