Jeep bulletin S1721000016
What it saysService 4wd Light On, AWD System Service Required Message Illuminated. NHTSA’s full summary ↓
Jeep filed this with NHTSA as a service bulletin dated Dec 19, 2025, received Jul 27, 2020, about the power train — 4 documents under this number: S1721000016 REV. B and 3 more. It names 33 model years (2016–2023). A service bulletin is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationService 4wd Light On, AWD System Service Required Message Illuminated. Diagnostic Trouble Code (DTC) C14A7-97 PTU Motor Component Or System Operation Obstructed Or Blocked, Set.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| S1721000016 REV. B | Service bulletin | Dec 19, 2025 | 11026812 | |
| S1721000016 | Service bulletin | Oct 25, 2023 | 10247452 | not found |
| S1721000016 | Service bulletin | Jun 5, 2020 | 10223532 | not found |
| S1721000016 | Service bulletin | Jun 5, 2020 | 10177477 | not found |
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themAlso filed against model years this site has no page for: 2019 Jeep Gladiator; 2018 Jeep Patriot.
A vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
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What owners reported
Source: NHTSA complaint databaseOwners of the 31 model years this bulletin names have filed 16,325 complaints with NHTSA since 2015. 12,524 of them name Power Train, Engine, Electrical System — the same broad component group this bulletin is filed under. NHTSA groups complaints coarsely, so that means the same area of the vehicle, not necessarily the same fault.
On the 2017 Jeep Cherokee, the 408 owners who gave an odometer reading for Power Train reported it at a median of 46,818 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
The contact owned a 2017 Jeep Cherokee. While the contact's spouse was driving 65 MPH, the service shifter warning indicator illuminated. The contact stated that the vehicle accelerated independently and then shifted into park independently. The vehicle became uncontrollable, spun around several times, and crashed into a tractor trailer.
2017 Jeep Cherokee · Air Bags · filed with NHTSA Aug 30, 2017 · ODI 11020520
The contact owns a 2016 Jeep Cherokee. While stationary, another vehicle struck the driver side of the contact's vehicle. The air bags did not deploy. A police report was filed. The contact sustained injuries to the head, shoulder, ribs, hand, and arms, which required medical attention. The vehicle was towed to a collision repair center.
2016 Jeep Cherokee · Air Bags · filed with NHTSA Jul 25, 2016 · ODI 10888262
The contact owns a 2016 Jeep Compass. While driving approximately 5 MPH, the driver's air bag deployed without warning or impact. The contact stated that the air bag exploded and burned both of her hands. In addition, the contact suffered chest and abdominal pain from the impact of the air bag explosion, which required medical attention.
2016 Jeep Compass · Air Bags · filed with NHTSA May 1, 2018 · ODI 11091236
In depth: 2021 Jeep Cherokee transmission and drivetrain problems → · 2020 Jeep Cherokee transmission and drivetrain problems → · 2020 Jeep Cherokee engine problems → · 2019 Jeep Cherokee transmission and drivetrain problems →
A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.
More bulletins about the power train
Source: same model, same component group187 other manufacturer communications filed against these Jeep models under the same component group (power train), newest first. The eight newest are listed; the rest are on the Jeep list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 21-066-26 | Service bulletin | Oct 23, 2026 | 6-Speed Manual Shifter Cable Misaligned Customers may experience the following: SYMPTOM: ● Rough shifting between gears. Particularly diffic… |
| 08-383-26 | Service bulletin | Oct 20, 2026 | Flash: Electronic Shift Module (ESM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must… |
| S2621000004 | Service bulletin | Sep 30, 2026 | The Customer May Complain About a Popping Noise, Grinding Noise, or an Intermittent No Reverse or Forward Transmission Engagement. The Tec… |
| 21-063-26 | Service bulletin | Sep 25, 2026 | Not applicable to vehicles built for US market. Fault Code P120F-00 Present In Hybrid The vehicle may illuminate the Malfunction Indicator L… |
| 21-061-26 | Service bulletin | Sep 25, 2026 | Not applicable to vehicles built for US market. Park Lock Piston Leaking Customers may comment on the following: SYMPTOM: ● Power loss - jer… |
| 114741 | Service bulletin | Sep 24, 2026 | TRANSMISSION KIT - WITH TORQUE CONVERTER |
| 21-042-26 | Service bulletin | Sep 19, 2026 | Not applicable to vehicles built for US market. 1.5L Transmission Diagnosis Service Solution Customers may experience one or more of the fol… |
| 9100904 | Service bulletin | Sep 10, 2026 | Shifter If shifter is having trouble shifting between 1st and 2nd gear, then adjust cables as described in service library. |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Jeep, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Jeep S1721000016 a recall?
No. A service bulletin is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the S1721000016 repair free?
Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way. Every Stellantis warranty extension on file lists the ones Stellantis has filed.
Which vehicles does S1721000016 cover?
The manufacturer filed it against 33 model years: 2023 Jeep Cherokee, 2022 Jeep Cherokee, 2021 Jeep Cherokee, 2020 Jeep Cherokee, 2019 Jeep Cherokee, 2018 Jeep Cherokee and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.