Service bulletin 11-001-13

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
Type	Service bulletin
NHTSA id	10216409
Published by NHTSA	2022-07-25
Manufacturer's number	11-001-13
Manufacturer's date	2013-02-27
NHTSA component	TRAILER HITCHES

NHTSA's summary

Exhaust Tip Contacting Hitch Causing Buzz, Squeak Or Rattle (BSR) This bulletin involves replacing both left and right exhaust tips. The customer may experience a buzz, squeak or rattle (BSR) coming from the rear of the vehicle over bumps.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Trailer hitch

Vehicles listed
JEEP GRAND CHEROKEE	2013

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
21-014-14	2022-08-29. Service bulletin. Flash: Transmission Shift Enhancements This bulletin involves selectively erasing and reprogramming the Transmission Control Module (TCM) with new software. NOTE: This bulletin applies to the following vehicles: • Wrangler vehicles equipped with the WA580 Automatic Transmission (Sales Code DGJ) • Challenger vehicles equipped with either the 3.6L engine (Sales Code ERB) or the 6.4L Engine (Sales Code ESH or ESG) and the WA580 Automatic Transmission (.Sales Code DGJ) • Durango vehicles equipped with the 3.6L engine (Sales Code ERB) and the WA580 Automatic Transmission (Sales Code DGJ) • Grand Cherokee vehicles equipped with the 6.4L engine (Sales Code ESG) for all markets except Australia (Sales Code 8AL) or the 3.6L engine (Sales Code ERB) (All Markets) and the WA580 Automatic Transmission (Sales Code DGJ). Australian vehicles equipped with the 6.4L can refer to Service Bulletin 21-010-14
21-014-14	2022-08-22. Service bulletin. Flash: Transmission Shift Enhancements This bulletin involves selectively erasing and reprogramming the Transmission Control Module (TCM) with new software. The following Transmission Control Module (TCM) calibration improvements are available for vehicles equipped with WA580 Automatic Transmission (Sales Code DGJ).3.6L Grand Cherokee/Durango Transmission shifting does not meet customers expectation while towing a loaded trailer in high ambients (>32°C/90°F). Poor performance and/or poor powertrain response when trying to accelerate from speeds >58 kph (36 mph) - All Markets. Poor performance and/or poor powertrain response when trying to accelerate from speeds >48 kph (30 mph) - Japan/Taiwan/China vehicles only. Transmission shifts inconsistently (gear hunting) when driving up/down steep hills or when towing a trailer.6.4L Grand Cherokee Poor acceleration or performance above 113 kph (70 mph). Transmission shifting while accelerating from a stop does not meet customers expectation. Harsh shifting during acceleration with moderate accelerator pedal and then lifting off the accelerator pedal. Cannot accelerate up a steep incline or with a loaded trailer in reverse.3.6L Wrangler Transmission shifting does not meet customers expectation while towing a loaded trailer in high ambients (>32°C/90°F). Poor performance and/or poor powertrain response when trying to accelerate from speeds >48 kph (30 mph) - Japan/Taiwan/China vehicles only. Rubicon Only.2.8L Wrangler Transmission shifts inconsistently (gear hunting) when driving up/down steep hills or when towing a trailer. Delayed Drive to Reverse shift engagement when the transfer case is in Low Range (4LO) Transmission shifting while accelerating from a stop does not meet customers expectation. Poor vehicle performance in Drive Poor vehicle performance in Auto Stick Mode. Rubicon Only.3.6L Challenger Transmission shifting does not meet customers expectation while towing a loaded
21-014-14	2018-06-11. Service bulletin. Transmission Shift Enhancements: This bulletin involves selectively erasing and reprogramming the Transmission Control Module (TCM) with new software. The following Transmission Control Module (TCM) calibration improvements are available for vehicles equipped with WA580 Automatic Transmission (Sales Code DGJ).3.6L Grand Cherokee/Durango Transmission shifting does not meet customers expectation while towing a loaded trailer in high ambients (>32°C/90°F). Poor performance and/or poor powertrain response when trying to accelerate from speeds >58 kph (36 mph) - All Markets. Poor performance and/or poor powertrain response when trying to accelerate from speeds >48 kph (30 mph) - Japan/Taiwan/China vehicles only. Transmission shifts inconsistently (gear hunting) when driving up/down steep hills or when towing a trailer.6.4L Grand Cherokee. Poor acceleration or performance above 113 kph (70 mph).Transmission shifting while accelerating from a stop does not meet customers expectation. Harsh shifting during acceleration with moderate accelerator pedal and then lifting off the accelerator pedal. Cannot accelerate up a steep incline or with a loaded trailer in reverse.3.6L Wrangler Transmission shifting does not meet customers expectation while towing a loaded trailer in high ambients (>32°C/90°F). Poor performance and/or poor powertrain response when trying to accelerate from speeds >48 kph (30 mph) - Japan/Taiwan/China vehicles only. Rubicon Only.2.8L Wrangler Transmission shifts inconsistently (gear hunting) when driving up/down steep hills or when towing a trailer. Delayed Drive to Reverse shift engagement when the transfer case is in Low Range (4LO) Transmission shifting while accelerating from a stop does not meet customers expectation. Poor vehicle performance in Drive Poor vehicle performance in Auto Stick Mode. Rubicon Only.3.6L Challenger Transmission shifting does not meet customers expectation while towing a loaded trailer in high ambients (>32°C/90°F).