Land Rover bulletin SSM75771
What it saysEngine knocking noise post service engine replacement - incorrect fuel injector installation. NHTSA’s full summary ↓
Land Rover filed this with NHTSA as a service bulletin dated Jun 2, 2023, received Jul 11, 2023, about the engine. It names 5 model years (2018–2019). 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 communicationEngine knocking noise post service engine replacement - incorrect fuel injector installation.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| SSM75771 | Service bulletin | Jun 2, 2023 | 10239031 | PDF, 64 KB |
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 Land Rover Defender.
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 4 model years this bulletin names have filed 335 complaints with NHTSA since 2015. 107 of them name Engine — 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 2018 Land Rover Range Rover, the 13 owners who gave an odometer reading for Engine reported it at a median of 60,000 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
Ever since I bought the car back in April 2022, it has been in the dealer for intermittent check engine lights due to problems with the engine and transmission. The car would go on a limp mode especially when driving on a highway at steady speed. It would rattle, slow down or will not accelerate even when pressing the gas.
2018 Land Rover Discovery · Engine · filed with NHTSA Oct 15, 2025 · ODI 11693500
The contact owns a 2019 Land Rover Discovery. The contact stated that while driving at 20 MPH and entering the highway, the vehicle shut off. While driving at 45 MPH, the vehicle shut off and restarted. The vehicle coasted after stalling. The vehicle was shifted into park and then into drive to continue driving.
2019 Land Rover Discovery · Engine · filed with NHTSA Sep 19, 2025 · ODI 11688432
The contact owns a 2018 Land Rover Range Rover. The contact stated that while driving at an undisclosed speed, the message flashing forward alert not available, brake assist not available, transmission fault, AEB not available, HDC not available were displayed.
2018 Land Rover Range Rover · Engine · filed with NHTSA Sep 2, 2026 · ODI 11761553
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 engine
Source: same model, same component group93 other manufacturer communications filed against these Land Rover models under the same component group (engine), newest first. The eight newest are listed; the rest are on the Land Rover list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| D089 Defender 18SEP26 | Other | Sep 18, 2026 | The engine coolant temperature amber warning is not enabled and not displayed on the instrument panel cluster. |
| D061 Range Rover 18SEP26 | Other | Sep 18, 2026 | Turbocharger Coolant Feed / Return Leak |
| D011 Range Rover 18SEP26 | Other | Sep 18, 2026 | Coolant Bypass Hose Leak |
| D011 Defender 18SEP26 | Other | Sep 18, 2026 | Coolant Bypass Hose Leak |
| N861 Range Rover 21AUG26 | Other | Aug 21, 2026 | Mild Hybrid Electric Vehicle (MHEV) Battery Offline |
| D061 Range Rover 21AUG26 | Other | Aug 21, 2026 | Turbocharger Coolant Feed / Return Leak |
| D061 Defender 21AUG26 | Other | Aug 21, 2026 | Turbocharger Coolant Feed / Return Leak |
| D061 Range Rover 17JUL26 | Other | Jul 17, 2026 | Turbocharger Coolant Feed / Return Leak |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Land Rover, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Land Rover SSM75771 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 SSM75771 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.
Which vehicles does SSM75771 cover?
The manufacturer filed it against 5 model years: 2019 Land Rover Discovery, 2018 Land Rover Discovery, 2019 Land Rover Range Rover, 2018 Land Rover Range Rover, 2019 Land Rover Defender. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.