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May 4, 2021 NHTSA CAMPAIGN NUMBER: 21V310000
Transmission Oil Cooler Hose May Leak
A transmission fluid leak increases the risk of a fire.
NHTSA Campaign Number: 21V310
Manufacturer Chrysler (FCA US, LLC)
Components POWER TRAIN
Potential Number of Units Affected 18,800
Summary
Chrysler (FCA US LLC) is recalling certain 2021 Jeep
Cherokee vehicles. The transmission oil cooler hose may have been incorrectly cured, allowing transmission fluid to leak.
Remedy
Dealers will inspect and replace the hose, free of charge. Owners notification letters were mailed May 18, 2021. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler
’s number for this recall is Y18.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Check if your Vehicle has a Recall
New Safety Recall Advanced Communication – Y18
FCA US LLC (FCA US) has announced a safety recall on certain 2021 Model Year (KL) Jeep® Cherokee vehicles equipped with an automatic transmission.
REASON FOR THIS SAFETY RECALL
Some of the above vehicles may have been manufactured with a Transmission Oil Cooler (TOC) hose with incorrectly cured rubber. An incorrectly cured TOC hose may have a weakened hose wall that can rupture, allowing transmission fluid to leak. Transmission fluid leaking from a TOC hose may contact a competent ignition source and lead to a vehicle fire. A vehicle fire may increase the risk of injury to occupants and persons outside of the vehicle, as well as property damage.
SERVICE ACTION
FCA US will conduct a voluntary safety recall to inspect the TOC hoses, and replace as needed. The remedy for this condition is not currently available. Dealers will be notified of the launch of this safety recall by way of established communication methods. This recall is estimated to launch in the 2nd Quarter of 2021.
We ask that you please take the time to ensure that your personnel are aware of this communication and are prepared to execute a customer friendly process for inquiries regarding involved vehicles.
May2021
Dealer Service Instructions for:
Safety Recall Y18 / NHTSA 21V-310 Transmission Oil Cooler Hose
Remedy Available
2021 | (KL) | Jeep![]() |
NOTE: Some vehicles above may have been identified as not involved in this recall and therefore have been excluded from this recall.
IMPORTANT: Some of the involved vehicles may be in dealer new vehicle inventory. Federal law requires you to complete this recall service on these vehicles before retail delivery. Dealers should also consider this requirement to apply to used vehicle inventory and should perform this recall on vehicles in for service. Involved vehicles can be determined by using the VIP inquiry process.
Subject
The transmission oil cooler hose on about 18,800 of the above vehicles may have been manufactured with a Transmission Oil Cooler (TOC) hose with incorrectly cured rubber. An incorrectly cured TOC hose may have a weakened hose wall that can rupture, allowing transmission fluid to leak. Transmission fluid leaking from a TOC hose may contact a competent ignition source and lead to a vehicle fire. A vehicle fire may increase the risk of injury to occupants and persons outside of the vehicle, as well as property damage.
Repair
Inspect the transmission oil cooler hoses for a production date code matching the range listed in the table below. If the hoses fall within the specified date range, they must be replaced.
Alternate Transportation
Dealers should attempt to minimize customer inconvenience by placing the owner in a loaner vehicle if inspection determines that hose replacement is required and the vehicle must be held overnight.
Parts Information
Part Number | Qty. | Description |
68399017AA | 1 | Hose and Tube, oil cooler pressure and return (2.4L) |
68399018AA | 1 | Hose and Tube, oil cooler pressure and return (2.0L) |
68399015AA | 1 | Hose and Tube, oil cooler pressure and return (3.2L) |
06510520AA | 2 or 4 | Rivet, blind bulb, fascia lower support (MSQ 12) |
68218925AB | 1 | Mopar 8&9 speed ATF (MSQ 6) |
Parts Return
No parts return required for this campaign.
Special Tools
The following special tools are required to perform this repair:
| Disconnect, Transmission Cooler Line |
| Disconnect Tool |
| Dipstick, Oil |
Service Procedure
Inspect
NOTE: To enhance customer satisfaction, remember to reset the clock when you have completed the service procedure.
- Raise and support the vehicle.
NOTE: There are several different belly pans depending on engine and drivetrain options. Some may have a fewer number of fasteners but they are all removed by the same procedure.
- Remove the engine belly pan or skid plate (2) from the underside of the vehicle. Skid plates have slots at the front row of fasteners. Loosen, but do not fully remove, these fasteners (Figure 1).
- Slide protective sleeve aside on both hoses until timestamp is visible (Figure 2).
- Inspect both hoses. If the date is 113020 and timestamp between 12:59 and 13:21 on either hose, proceed to removal procedure. If not, reassemble the vehicle and return it to the customer (Figure 3).
NOTE: The date and time stamps in Figure 3 are shown on the bottom of the hose. But the stampings may be on the top or sides of the hose. Use a mirror if necessary to inspect the codes.
Remove
- Lower the vehicle.
- Disconnect and isolate the negative battery cable. If equipped with an Intelligent Battery Sensor (IBS), disconnect the IBS connector first before disconnecting the negative battery cable (Figure 4).
- Remove the push pin fasteners (1) and remove the radiator closeout panel (2) (Figure 5).
- Remove two fasteners from the fascia in the grill opening (Figure 6).
- Raise the vehicles.
- Remove the fasteners (2), one 10mm bolt at the bottom, and the push pin fasteners (3) from the front half of the wheel liner. Fold the liner back (Figure 7).
- Remove front fascia rivets (1) (Figure 7).
- On non-Trailhawk models, from inside the wheel well, release the clips (3) holding the flare moldings (2) to the front fascia (Figure 8).
- Remove the fasteners attaching the sides of the fascia to the fenders (Figure 9).
- Release the barbed fascia tab just ahead of the bolt (Figure 10).
- Disconnect the wire harness connector (Figure 11).
- On Trailhawk models, remove the lower row of bolts from the fascia (Figure 12).
- Carefully pull out on the upper and lower fascia sides to release the fascia retaining tabs at the fender (2) and below the headlight (1). Repeat on the opposite side (Figure 13).
- Remove the transmission cooler line support brace bolt (Figure 14).
- Disconnect the transmission cooler lines at the cooler (Figure 15).
- Raise the vehicle.
Install
- Position transmission cooler line bundle in vehicle.
- Connect the transmission cooler lines at transmission fittings (Figure 16).
- Lower the vehicle to a good working height.
- Connect the transmission cooler lines to the cooler. Clean fluid from the vehicle. (Figure 15).
- Install the transmission cooler line support brace bolt (Figure 14).
- With the help of an assistant, position the fascia to the vehicle.
- Seat the fascia onto the clips under the headlights (1) fully (Figure 13).
- Seat the sides of the fascia onto the fender clips (2) fully (Figure 13).
- On Trailhawk models, install the lower row of bolts to the fascia (Figure 12).
- Connect the electrical connector (Figure 11).
- Seat the barbed fascia tab just ahead of the bolt (Figure 10).
- Install the fasteners (1) attaching each side of the fascia to the fenders (Figure 9).
- On on-Trailhawk models, install the front flare moldings (2) to the front fascia. Verify the retaining clips (3) are fully seated (Figure 8).
- Install the fasteners (2), bolt, and the push pin fasteners (3) to the front half of the wheel liner (Figure 7).
- Install new rivets (1) (Figure 7).
- Lower the vehicle.
- Install two fasteners to the fascia in the grill opening (Figure 6).
- Install the push pin fasteners (1) and install the radiator closeout panel (2) (Figure 5).
- Connect the negative battery cable. If equipped with an Intelligent Battery Sensor (IBS), connect the IBS connector after connecting the negative battery cable (Figure 4).
NOTE: Special Tool Dipstick, 9 Speed 2064600210 The 2064600210 – Dipstick and a scan tool are required to accurately measure the fluid level in the 948TE automatic transmission.
- Check the transmission fluid level. Checking the fluid level in the 948TE automatic transmission is done by inserting the dipstick tool 2064600210 in the fluid level check port, located on top of the transmission housing above the differential. Tool 2064600210 dipstick is marked in 5 mm increments. The engine must be running at idle with the transmission in park and the vehicle in a level position.
- Connect a scan tool to the Diagnostic Connector under the instrument panel on the driver’s side of the vehicle.
- With the scan tool, view the Data Display and read the Transmission Fluid Temperature.
- Start the engine and allow it to run at idle with the transmission in Park.
- Verify that the fluid temperature is above 50 °C.
NOTE: Vehicle must be level for accurate transmission fluid level readings.
- Remove the engine cover. On 2.0L engines, there are two threaded fasteners (Figure 17).
- Remove the plug (1) from the fluid level check port (Figure 18).
- Insert tool Dipstick, 9 Speed 2064600210 into the fluid level check port and allow the handle of the tool to rest on the flat surface of the transmission housing around the check port.
- Remove the dipstick (1) from the check port (2), keeping the handle above the tip so the level reading remains accurate.
- Note the increment on the shaft of the dipstick where the fluid left a witness mark.
- Based on the temperature of the fluid and the measurement on the tool, refer to the graph or the table to determine the proper level (Figures 19 and 20).
- Install the plug into the fluid level check port and tighten to 23 N·m (17 ft. lbs.).
- Install the engine cover.
1 Affected Product
Vehicle
MAKE | MODEL | YEAR |
JEEP![]() | CHEROKEE | 2021 |
10 Associated Documents
Remedy Instructions and TSB
RCRIT-21V310-1006.pdf 1202.406KB
Recall Quarterly Report #1, 2021-2
RCLQRT-21V310-4484.PDF 211.147KB
ISSUED Owner Notification Letter(Part 577)
RCONL-21V310-6348.pdf 516.734KB
ISSUED Owner Notification Letter(Part 577) (Already Remedied)
RCONL-21V310-0211.pdf 516.733KB
Recall Acknowledgement
RCAK-21V310-9264.pdf 693.267KB
Manufacturer Notices(to Dealers,etc) – NDSRAC Message re FCA US LLC (FCA US) has announced a safety recall on certain 2021 Model Year (KL) Jeep Cherokee vehicles equipped with an automatic transmission
Defect Notice 573 Report
RCLRPT-21V310-4604.PDF 214.368KB
ISSUED Renotification Notice
RCRN-21V310-6284.pdf 137.665KB
Recall Quarterly Report #2, 2021-3
RCLQRT-21V310-1779.PDF 211.249KB
Recall Quarterly Report #3, 2021-4
RCLQRT-21V310-0515.PDF 211.336KB
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