# Service bulletin 21\-008\-12

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: 10044186
- Published by NHTSA: 2012\-05\-17
- Manufacturer's number: 21\-008\-12
- Manufacturer's date: 2012\-03\-23
- NHTSA component: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\)

## NHTSA's summary

CHRYSLER: FLASH: SHIFT IMPROVEMENT AND/OR MIL ILLUMINATING AND/OR LONG CRANKS TIMES WHILE USING E85 WITH OR WITHOUT ENHANCED ACCELERATOR PEDAL OPERATION. MODEL DODGE CARAVAN MODEL YEAR 2012. \*JS

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Transmission and driveline, Automatic transmission, Transmission control module

## Vehicles listed

- 2012 CHRYSLER TOWN AND COUNTRY

## Other bulletins for the same vehicles and component

- [V51](/bulletins/10228020.md), 2022-12-19, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); UNKNOWN OR OTHER. Customer Satisfaction Notification V51 Reprogram Powertrain Control Module
- [S1121000006RevA](/bulletins/10221831.md), 2022-09-26, Service bulletin: POWER TRAIN:TRANSMISSION CASE/HOUSING; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM. \(Revision A\) No Start No Crank ? Starter Will Not Engage And There Are No Related Codes Or Concerns
- [21\-012\-12 REV. B](/bulletins/10216347.md), 2022-07-25, Service bulletin: ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER; POWER TRAIN; ELECTRICAL SYSTEM:SOFTWARE. Flash: Transmission Shift Quality Improvements This bulletin involves flash reprogramming the Powertrain Control Module \(PCM\) with new software.There may be two software packages to choose from. Both software updates will fix all symptoms/conditions listed. Refer to Service Bulletin 21\-008\-12 for details about the software choices. Some customers may notice any of the following: Harsh 1\-3 upshift while operating in Economy \(ECO\) mode. Harsh 2\-3 upshift while operating in normal mode.For 2012 model year, the harsh 1\-3 upshift in Economy Mode and the harsh 2\-3 upshift in Normal Mode was corrected in the revised software enhancements that were released in Service Bulletin 21\-008\-12 dated March 23, 2012. 1\-2 upshift clunk following a throttle back out \(2012 \- 2013 model year only\).In addition to correcting the previous Symptom/Conditions, the following enhancements have been made to improve the shift quality of the 62TE transmission: Shift schedule changes for the 1\-2, 3\-4, 4\-5, and 5\-6 upshifts and the 6\-4P, 6\-5, and 5\-4 downshifts. Fifth gear torque converter lock\-up/unlock improvements.
- [S1121000006 Rev.](/bulletins/10180221.md), 2020-09-28, Service bulletin: ELECTRICAL SYSTEM; ENGINE; POWER TRAIN:AUTOMATIC TRANSMISSION. \(Revision A\) No Start No Crank ? Starter Will Not Engage And There Are No Related Codes Or Concerns
- [R4880213A$](/bulletins/10080209.md), 2016-09-15, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT. "SHAFT \- AXLE HALF NOTE: THE JOINT BETWEEN THE SPLINES ON THE HALFSHAFT AND THE HUB AND BEARING IS AN INTERFERENCE FIT. THE HALFSHAFT NUT IS TO BE USED TO DRAW THE HUB AND BEARING ONTO THE HALFSHAFT SPLINES. THIS IS PARTICULARLY TRUE IF HUB AND BEARING IS ALSO BEING REPLACED"
- [CSN\-M\-38](/bulletins/10051775.md), 2013-04-10, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). DODGE/CHRYSLER: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. DUE TO SOFTWARE PROGRAMMING CAUSING POOR AUTOMATIC TRANSAXLE SHIFT PROBLEMS, A NEW PCM SOFTWARE IS AVAILABLE TO IMPROVE SHIFT QUALITY OF AUTOMATIC TRANSAXLE. MODEL 2011\-2013 GRAND CARAVAN, TOWN AND COUNTRY. \*PE

JSON: [/v1/bulletins/10044186](/v1/bulletins/10044186)

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