NHTSA ID Number: 10240577
Manufacturer Communication Number: SSM 51823
Summary
Some 2019-2023 Edge/Nautilus, 2020-2023 Escape/Corsair, 2021-2023 Bronco Sport, 2022-2023 Maverick vehicles equipped with all wheel drive (AWD) may exhibit chatter/shudder during low speed turning events. This may be due to fluid contamination in the rear drive unit (RDU). Drain and refill the RDU, refer to Workshop Manual Section (WSM) 205-02. Drive for 5 miles (8 km) in stop and go conditions with right and left turns and re-evaluate. If the issue is still present, continue with normal WSM diagnostics. For claiming, use base (4000) causal part.
26 Affected Products
Vehicles
| MAKE | MODEL | YEAR |
FORD | BRONCO SPORT | 2021-2023 |
| FORD | EDGE | 2019-2023 |
| FORD | ESCAPE | 2020-2023 |
| FORD | MAVERICK | 2022-2023 |
| LINCOLN | CORSAIR | 2020-2023 |
| LINCOLN | MKX | 2019-2021 |
| LINCOLN | NAUTILUS | 2019-2023 |
1 Associated Document
Manufacturer Communications
SSM 51823 2019-2023 Edge/Nautilus, 2020-2023 Escape/Corsair, 2021-2023 Bronco Sport, 2022-2023 Maverick – AWD – Chatter/Shudder During Low Speed Turning Events
NHTSA ID Number: 10187981
Manufacturer Communication Number: SSM 49571
Summary
Some 2019-2021 Edge/Nautilus, 2020-2021 Escape/Corsair, 2021 Bronco Sport vehicles equipped with all wheel drive (AWD) may exhibit chatter/shudder during low speed turning events due to fluid contamination. Drain and refill the rear drive unit (RDU), refer to Workshop Manual Section (WSM) 205-02. Drive for 8 km (5 miles) in stop and go conditions with right and left turns and re-evaluate. If the issue is still present, continue with WSM diagnostics. For claiming, use base (4000) causal part.
1 Associated Document
Manufacturer Communications
SSM 49571 – 2019-2021 Edge/Nautilus, 2020-2021 Escape/Corsair, 2021 Bronco Sport – AWD – Chatter/Shudder During Low Speed Turning Events
MC-10187981-0001.pdf 116.501KB
- SATISFIES REQUIREMENTS - for gear oil viscosity of SAE 75W80, 75W, 80W and 85W, as well as SAE 30 and SAE 10W30 motor oil
- APPLICATIONS - include differential oil, final drive oil, gear oil and transfer case fluid, this product is not designed for use in most manual transmissions or transaxles with synchronizers, as extreme slipperiness may cause shifting problems
- CONTAINS - additional friction modifiers for suitability with clutch-type limited slip differentials - for most LSDs, no additional friction modifiers are required, known formerly as LightWeight Gear Oil
- POPULAR GEAR OIL FOR - in many late model BMW, Dodge, Ford, GM, Jeep, Lexus, Mercedes-Benz, Ram, Toyota, also popular in many Formula racing transaxles, including Hewland LD-200 and FTR sequential
- WHY RED LINE - Established in 1979, Red Line Products perform & protect better than any on the market. No compromises
- SATISFIES REQUIREMENTS - for gear oil viscosity of SAE 75W80, 75W, 80W and 85W, as well as SAE 30 and SAE 10W30 motor oil
- APPLICATIONS - include differential oil, final drive oil, gear oil and transfer case fluid, this product is not designed for use in most manual transmissions or transaxles with synchronizers, as extreme slipperiness may cause shifting problems
- CONTAINS - additional friction modifiers for suitability with clutch-type limited slip differentials - for most LSDs, no additional friction modifiers are required, known formerly as LightWeight Gear Oil
- POPULAR GEAR OIL FOR - in many late model BMW, Dodge, Ford, GM, Jeep, Lexus, Mercedes-Benz, Ram, Toyota, also popular in many Formula racing transaxles, including Hewland LD-200 and FTR sequential
- WHY RED LINE - Established in 1979, Red Line Products perform & protect better than any on the market. No compromises
- API GL-5 GEAR OIL FOR DRIVETRAINS: Designed for differentials, transfer cases, and gear systems in a wide range of U.S., European, and Asian vehicles
- OEM SPECIFIC FORMULATION: Delivers performance equal to or better than OEM fluids, ensuring smooth gear operation, frictional stability, and gear functionality while preventing shuddering, sticking, and slipping
- OUTSTANDING EXTREME PRESSURE (EP) PROTECTION: Exceptional shear stability and friction control for seamless gear transitions, torque transfer, and superb performance in high horsepower, high-speed, sustained mechanical and thermal loads
- ADVANCED METAL PROTECTION: Formulated to protect brass, copper, and aluminum alloys, outperforming many OEM and premium brands in severe service conditions
- ALL-CLIMATE PERFORMANCE: Superior performance in both extreme heat and cold, down to -50°F, and supports lifetime fill unless otherwise specified by the manufacturer
- SATISFIES REQUIREMENTS - for gear oil viscosity of SAE 75W80, 75W, 80W and 85W, as well as SAE 30 and SAE 10W30 motor oil
- APPLICATIONS - include differential oil, final drive oil, gear oil and transfer case fluid, this product is not designed for use in most manual transmissions or transaxles with synchronizers, as extreme slipperiness may cause shifting problems
- CONTAINS - additional friction modifiers for suitability with clutch-type limited slip differentials - for most LSDs, no additional friction modifiers are required, known formerly as LightWeight Gear Oil
- POPULAR GEAR OIL FOR - in many late model BMW, Dodge, Ford, GM, Jeep, Lexus, Mercedes-Benz, Ram, Toyota, also popular in many Formula racing transaxles, including Hewland LD-200 and FTR sequential
- WHY RED LINE - Established in 1979, Red Line Products perform & protect better than any on the market. No compromises
- FlexFill squeezable pouch releases 2X more fluid with less effort for 3X faster filling vs. traditional bottle packaging
- Contains limited slip for optimal performance of the clutch pack, while also delivering 30% better protection against towing and heavy loads and 1.5X better gear wear protection
- Advanced full synthetic helps prevent noise and reduce chattering, while protecting gear teeth from wearing out prematurely
- High and low temperature protection ranges from -50F to 300F degrees for cold temperature fluidity and high temperature performance
- Fights rust and corrosion with corrosion inhibitors and safeguards against impurities, oxidation and thermal breakdown
Last update on 2026-06-04 / Affiliate links / Images from Amazon Product Advertising API
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