# Service bulletin S2003000001 Rev.

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: 10190629
- Published by NHTSA: 2021\-04\-26
- Manufacturer's number: S2003000001 Rev.
- Manufacturer's date: 2021\-03\-15
- NHTSA component: SUSPENSION

## NHTSA's summary

Noise From Front Axle Area Over Bumps

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10190629-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10190629-9999.pdf)

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

## Components

Suspension

## Vehicles listed

- 2020 to 2021 JEEP GLADIATOR
- 2018 to 2021 JEEP WRANGLER

## Recalls for the same vehicles and component

- [20V042000](/recalls/nhtsa/20V042000.md), 2020-01-24: SUSPENSION:FRONT:CONTROL ARM:LOWER ARM

## Other bulletins for the same vehicles and component

- [9100756](/bulletins/11028885.md), 2026-02-19, Service bulletin: SUSPENSION. DO NOT REPLACE MULTIPLE SHOCKS UNLESS ALL ARE VERIFIED TO BE DEFECTIVE. Reference Master Tech article released in January 2026 for updated diagnostic and testing procedures. Master Tech link: https: //mastertech.playerlync.net/app/player/p2tQVm
- [9100756](/bulletins/11028252.md), 2026-02-04, Service bulletin: SUSPENSION. DO NOT REPLACE MULTIPLE SHOCKS UNLESS ALL ARE VERIFIED TO BE DEFECTIVE. Reference Master Tech article released in December 2025 for updated diagnostic and testing procedures. Master Tech link: https: //mastertech.playerlync.net/app/player/p2tQVm
- [S1819000004 REV.R](/bulletins/11026558.md), 2025-12-11, Service bulletin: WHEELS; STEERING; SUSPENSION. Shimmy Felt In Front End
- [02\-002\-25 REV. A](/bulletins/11023168.md), 2025-09-17, Service bulletin: SUSPENSION. Shock And Strut Diagnosis And Replacement Guidelines Leaking, noisy, or weak shocks or struts.
- [106352](/bulletins/11023074.md), 2025-09-10, Service bulletin: SUSPENSION. SHOCK ABSORBER – SUSPENSION \& SHOCKS \- REAR
- [02\-002\-25](/bulletins/11018676.md), 2025-05-30, Service bulletin: SUSPENSION. "Shock And Strut Diagnosis And Replacement Guidelines Leaking, noisy, or weak shocks or struts. "
- [S2123000046 REV.B](/bulletins/11006622.md), 2024-08-26, Service bulletin: SUSPENSION. Click Noise From Front End While Driving And Or Turning.
- [9100229](/bulletins/10244356.md), 2023-10-30, Service bulletin: SUSPENSION. LIFTER, Hydraulic Roller Deactivating Please do not replace MDS lifters because the disconnecting pin is not lined up, this is normal and not a defect.
- [S2302000001](/bulletins/10234414.md), 2023-04-17, Service bulletin: ELECTRONIC STABILITY CONTROL:AUTOMATIC \(ASC\); SUSPENSION. Service Air Suspension Message In Cluster. C15AD\-92\-Ride Height System\- Performance In Below Freezing Temperatures.
- [18\-002\-22 REV. A](/bulletins/10229782.md), 2023-01-17, Service bulletin: SUSPENSION; BACK OVER PREVENTION; FUEL SYSTEM, DIESEL; EXTERIOR LIGHTING; FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM; SERVICE BRAKES, HYDRAULIC. Flash: Powertrain Control Module \(PCM\) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation, a technician may find one or more of the following DTCs have been set: P016F \- Closed Loop Fuel Pressure Control At Limit \- Pressure Too Low. P025C \- Fuel Pump Module Control Circuit Low. P0300\-00 \- Multiple Cylinder Misfire. P0301\-00 \- Cylinder 1 Misfire. P0302\-00 \- Cylinder 2 Misfire. P0303\-00 \- Cylinder 3 Misfire. P0304\-00 \- Cylinder 4 Misfire. P0305\-00 \- Cylinder 5 Misfire. P0403\-00 \- EGR Control Circuit Open \(Disabled Fault\). P208B \- Reductant Pump 1 Control Performance. P04DB \- Crankcase Ventilation System Disconnected. P040F \- EGR Temperature Sensor A\-B Correlation. P225D \- Nox Sensor 1/1 Performance \- Signal Stuck Low. P0088 \- Fuel Rail Pressure Too High. P0404 \- EGR ?A? Control Circuit Range/Performance. P20C6 \- Reductant Heater 4 Control Circuit Performance. P0524 \- Low oil pressure \(during start up in cold ambient temps\). P249C\-00 \- Excessive Time To Enter Closed Loop Reductant Injection Control. P02E8\-00 \- Diesel Intake Air Flow Position Sensor Circuit Low. P20FB\-00 \- Reductant Pump 2 Control Performance. P065A\-00 \- Generator System Performance. Customers may experience one or more of the following: Slow acceleration. Reduced vehicle speed\&torque in high and 4 low. Poor cold idle stability. Poor idle quality with AC on. Excessive engine speed oscillations at tachometer red\-line. Following a long key\-on situation, poor cold start and idle stability. Cold hard start/extended crank. Block heater not providing a proper cold start and stable idle. High idle speeds at altitude when remote start is active. The cruise control and speed limited set speed doesn?t match the speedometer. It could be up to 2.5 kph \(1.5 mph\) difference. Other Software enhancements:Low speed engine idle improvements. Improved engine restart performance

JSON: [/v1/bulletins/10190629](/v1/bulletins/10190629)

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