TSB: CHRYSLER 300, 300 AWD, 300C, CHARGER, DAKOTA, DURANGO, DURANGO 4X4, LIBERTY, MAGNUM, NITRO, RAM 1500, RAM 2500, RAM 3500, RAM 4500, RAM 5500, TOURING, WRANGLER, WRANGLER 2-DR 4X4, WRANGLER 2-DR 4X4 RHD, WRANGLER 4-DR 4X2, WRANGLER 4-DR 4X4 (2007–2008)

Bulletin 21-018-08 — July 12, 2008

Bulletin Details

Bulletin ID21-018-08
ManufacturerCHRYSLER
Models300, 300 AWD, 300C, CHARGER, DAKOTA, DURANGO, DURANGO 4X4, LIBERTY, MAGNUM, NITRO, RAM 1500, RAM 2500, RAM 3500, RAM 4500, RAM 5500, TOURING, WRANGLER, WRANGLER 2-DR 4X4, WRANGLER 2-DR 4X4 RHD, WRANGLER 4-DR 4X2, WRANGLER 4-DR 4X4
Model Years2007–2008
Date IssuedJuly 12, 2008
Date Added to NHTSAOctober 3, 2008
ComponentPOWER TRAIN:AUTOMATIC TRANSMISSION
Vehicles Affected26 combinations

What is a TSB?

A Technical Service Bulletin is a document issued by the vehicle manufacturer to inform dealership technicians about a known issue and the recommended repair procedure. TSBs are not mandatory recalls — they serve as repair guidance for common problems.

If your vehicle has this issue, bring this bulletin ID to your dealer. If under warranty, the repair should be covered at no cost.

Summary

CHRYSLER/DODGE/JEEP: FLASH:DIAGNOSTIC TROUBLE CODE, DTC P0740 OR P1798 AND AUTOMATIC TRANSMISSION SHIFT IMPROVEMENTS 1-2 OR 2-3 COLD SHIFT IMPROVEMENTS. *PE

Affected Vehicles

MakeModelYearComponent
CHRYSLER 300 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHRYSLER 300 AWD 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
DODGE CHARGER 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
DODGE DAKOTA 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
DODGE DURANGO 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHRYSLER DURANGO 4X4 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
JEEP LIBERTY 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
DODGE MAGNUM 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
DODGE NITRO 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
DODGE RAM 1500 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
DODGE RAM 2500 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
DODGE RAM 3500 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
DODGE RAM 4500 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
DODGE RAM 5500 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
HARLEY-DAVIDSON TOURING 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
JEEP WRANGLER 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
JEEP WRANGLER 2-DR 4X4 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
JEEP WRANGLER 2-DR 4X4 RHD 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
JEEP WRANGLER 4-DR 4X2 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
JEEP WRANGLER 4-DR 4X4 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHRYSLER 300 2007 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHRYSLER 300 AWD 2007 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHRYSLER 300C 2007 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
DODGE CHARGER 2007 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
DODGE DAKOTA 2007 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
DODGE MAGNUM 2007 103000 POWER TRAIN:AUTOMATIC TRANSMISSION

Related CHRYSLER Recalls

CampaignModelYearComponentSummary
PACIFICA 2023 BACK OVER PREVENTION: SENSING SYSTEM:... Chrysler (FCA US, LLC) is recalling certain 2019 and 2023 Chrysler Pacifica, ...
PACIFICA 2019 BACK OVER PREVENTION: SENSING SYSTEM:... Chrysler (FCA US, LLC) is recalling certain 2019 and 2023 Chrysler Pacifica, ...
PACIFICA 2023 EQUIPMENT ADAPTIVE/MOBILITY:WHEELCHAI... Braun Corporation (Braun) is recalling certain 2023-2026 Chrysler Pacifica ve...
PACIFICA 2024 EQUIPMENT ADAPTIVE/MOBILITY:WHEELCHAI... Braun Corporation (Braun) is recalling certain 2023-2026 Chrysler Pacifica ve...
PACIFICA 2025 EQUIPMENT ADAPTIVE/MOBILITY:WHEELCHAI... Braun Corporation (Braun) is recalling certain 2023-2026 Chrysler Pacifica ve...

What Should You Do?

If your vehicle is affected by this TSB, contact your authorized CHRYSLER dealer. Bring this bulletin ID (21-018-08) when you visit. If under warranty, the repair should be free. If your warranty has expired, ask about goodwill coverage — manufacturers sometimes cover TSB-related repairs beyond the warranty period.

Frequently Asked Questions

A recall is a mandatory safety fix — the manufacturer must repair every affected vehicle for free. A TSB is an advisory document that describes a known issue and the recommended fix, but repairs are not required. However, some TSBs eventually lead to recalls if the issue poses a safety risk. TSBs are generally issued for quality or performance problems, while recalls address safety defects.

If your vehicle is still under the manufacturer's warranty, TSB-related repairs are typically covered at no cost. If your warranty has expired, you can ask the dealer about goodwill or customer assistance programs. Many manufacturers will cover or partially cover repairs for well-known issues, especially if the TSB was issued recently or affects a large number of vehicles.

Check the make, model, and model year listed above against your vehicle. If they match, this bulletin likely applies. However, TSBs may only affect vehicles with specific production dates, VIN ranges, or configurations. Your dealer can confirm by entering your VIN into their service system, which will show all applicable TSBs and recalls.

This data comes from the National Highway Traffic Safety Administration (NHTSA). Manufacturers are required to submit copies of all communications (including TSBs) sent to their dealers to NHTSA. The agency makes this data publicly available as part of its vehicle safety monitoring program.