# Service bulletin 24N01 S1

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: 11009831
- Published by NHTSA: 2024\-11\-05
- Manufacturer's number: 24N01 S1
- Manufacturer's date: 2024\-10\-15
- NHTSA component: SUSPENSION

## NHTSA's summary

In some of the affected vehicles, the rear axle bolt may fracture. A fractured rear axle bolt will allow the rear axle housing to move out of position, resulting in severe noise and vibration. If the rear axle bolt breaks, the driveshaft or half shafts may become disconnected, resulting in loss of transmission torque to the rear wheels. Transmission torque is necessary to hold the vehicle in park and is also needed for the vehicle to move forward or backward. Reason for supplement: updated tech instructions and parts list update

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-11009831-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-11009831-9999.pdf)

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

## Components

Suspension

## Vehicles listed

- 2020 to 2022 FORD EXPLORER

## Recalls for the same vehicles and component

- [21V870000](/recalls/nhtsa/21V870000.md), 2021-11-10: SUSPENSION:REAR
- [21V154000](/recalls/nhtsa/21V154000.md), 2021-03-10: SUSPENSION:REAR

## Other bulletins for the same vehicles and component

- [TSB 25\-2568 V2](/bulletins/11037671.md), 2026-10-01, Service bulletin: SUSPENSION; VEHICLE SPEED CONTROL; UNKNOWN OR OTHER. This article supersedes TSB 25\-2373 to update a print error on publication. Some vehicles listed in the model statement above may exhibit an illuminated powertrain malfunction \(wrench\) indicator with diagnostic trouble codes \(DTCs\) C00A6 and/or C0631. This may be due to the front axle disconnect actuator/intermediate shaft.
- [TSB 26\-2242](/bulletins/11032909.md), 2026-05-26, Service bulletin: SUSPENSION. This bulletin supersedes 25\-2213. Reason for update: update the Service Procedure to add notes to clarify the customer symptoms, applicability of this TSB, directing technicians to evaluate both front strut mounts, and add Figure 1 to identify the specific area of the strut mount to observe. Some of the vehicles listed in the Model statement above may exhibit a click/pop noise while turning the steering wheel from straight ahead to full lock during low speed turning events. This noise may be due to the front upper strut mount washer movement under steering loads.
- [TSB 25\-2568](/bulletins/11027608.md), 2026-01-13, Service bulletin: VEHICLE SPEED CONTROL; SUSPENSION; UNKNOWN OR OTHER. This article supersedes TSB 25\-2373 to update a print error on publication. Some vehicles listed in the model statement above may exhibit an illuminated powertrain malfunction \(wrench\) indicator with diagnostic trouble codes \(DTCs\) C00A6 and/or C0631. This may be due to the front axle disconnect actuator/intermediate shaft.
- [SSM 51821](/bulletins/10240575.md), 2023-08-10, Service bulletin: POWER TRAIN:TRANSFER CASE \(4\-WHEEL DRIVE\); SUSPENSION:REAR:AXLE:NON\-POWERED AXLE ASSEMBLY; POWER TRAIN. Some 2020\-2021 Explorer/Aviator/Police Interceptor Utility vehicles equipped with AWD may exhibit a binding or shudder sensation while turning and/or while accelerating from low speeds. The concern may also be described as a grinding and/or chatter noise. If the Workshop Manual \(WSM\) leads to replacement of the rear axle, inspect the differential for damage and differential fluid for metallic chunks in the fluid. Note that some metallic flake in the fluid and/or discoloration is normal and the rear axle should not be replaced for it. If no damage is found to the rear differential, it is not recommended to replace the rear axle assembly. Instead, refer to the Symptom Charts in WSM, Section 307\-07A for further diagnosis of the transfer case.
- [22N06](/bulletins/10222520.md), 2022-10-05, Service bulletin: SUSPENSION; WHEELS. Certain 2020\-2022 Model Year Explorer Vehicles Rear Axle Bolt Replacement REF : NEW VEHICLE DEMONSTRATION / DELIVERY HOLD Safety Recall 22S27 Supplement \#3
- [22N06](/bulletins/10214129.md), 2022-06-13, Service bulletin: SUSPENSION. Certain 2020\-2022 Model Year Explorer \(Non\-Police\) Vehicles \- Rear Axle Repair After Bolt Fracture. In some of the affected vehicles, the rear axle mounting bolt may fracture during vehicle acceleration. A fractured rear axle bolt will allow the rear axle housing to move out of position, resulting in severe noise and vibration. If the rear axle bolt breaks, the driveshaft/half shafts may become disconnected, resulting in loss of transmission torque to the rear wheels which is necessary to hold the vehicle in park. If the parking brake is not applied, the loss of the primary park torque will allow the vehicle to roll in park increasing the risk of crash and injury.
- [SSM 50471](/bulletins/10207898.md), 2022-02-16, Service bulletin: SUSPENSION:REAR; SUSPENSION. Some 2020\-2022 Explorer vehicles may exhibit a rear axle mounting bolt that has broken. In order to correct the condition, the rear subframe, differential cover, and mounting bolts will need to be replaced in addition to any other damaged components. Inspect the halfshafts, drive shaft, and differential for any damage, replacing damaged components as necessary. Refer to Workshop Manual \(WSM\), Section 502\-00 for removal of the subframe. Once the subframe is removed from the vehicle, remove and install any replacement components to the new subframe. Refer to WSM, Section 205\-02. For claiming, use causal part 4001.

JSON: [/v1/bulletins/11009831](/v1/bulletins/11009831)

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