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NHTSA ID Number: 10202399
Manufacturer Communication Number: PIT5854
Summary
This Preliminary information communicates information on vehicle speed being limited due to aftermarket lower kit being installed on the vehicle.
Condition
Some customers may comment on a Service Leveling System/Speed Limited message on DIC. Dealers may find no DTC’s present.
Cause
This could be caused by incorrect vehicle ride height variance due to an aftermarket lowering kit installed.
4 Affected Products
Vehicles
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT5854
Published date: 09/21/2021
MC-10202399-9999.pdf 1397.865KB
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- Fitment: For GMC Yukon/Yukon XL 1500 2WD/4WD/AWD 2000-2006; For Chevy Tahoe/Suburban/Avalanche 1500 2WD/4WD/AWD 2000-2006; For Cadillac
Escalade 2WD/4WD /AWD 2000-2006 - Introduction: The kit can lower For Chevrolet / For GMC / For Cadillac SUV 2000-2006 using Drop Keys, Drop Rear Coils including Rear Shock Extensions. This kit will allow you to lower your SUV 2"-3" in the front and 4" in the rear
- Feature: Durable powder coat finish Precision laser cut steel. Easy to install
- Package Includes: (Front) 1-3" Adjustable Drop Steel Torsion Keys (Rear) 4" Drop Coil Springs (3" Drop for Avalanche) (Rear) Powder Coated Shock Extenders Necessary hardware included
- Note: The longer spring is for driver-side. Must have Torsion Key Front End.No instruction included, Contact us if you have any questions
- Drops the front 2" and the rear 4" for a level drop.
- Maintains factory ride quality and uses N3 Performance Rear Shocks
- Includes Grade 9 hardware and hardened washers.
- Rear drop is adjustable between 4" and 4.5"
- Backed by Rough Country's Limited Lifetime Replacement Warranty.
- Available with or without shocks
- Specifically made for your vehicle with guaranteed fitment
- OEM ride quality with added performance, control and comfort
- Premium hardware along with detailed instruction to insure you'll get the job done right the first time
- [Application 1982-2004] Drop coil spring lowering kit fit for Chevrolet S10 V6 2WD; for Chevrolet Blazer 2WD; for GMC Sonoma 2WD; for GMC Jimmy 2WD. *Note: ONLY V6
- [Strong Steel] High-strength steel drop coil springs and drop blocks have a great powder coating keeping this item from rust and corrosion for an extended lifespan
- [Reduce Ground Clearance] Drop kit provides 3 inches of front lowering and 4 inches of rear lowering, effectively reducing suspension travel
- [Performance Improvement] Lower center of gravity will aid cornering and improve overall performance. Plus, lowered trucks are more aerodynamic, which in turn makes them faster
- [Premium Service] 1-Year limited warranty for quality-related issues (since the date of purchase) and lifetime technical support. We are committed to providing every customer with high-quality products. If you require any further information, feel free to contact us anytime
- Application - For Chevy Silverado C1500 1988-1998, For GMC C1500 Half-Ton Trucks 1988-1998.(Can work on Vehicle Rear Axle only)
- Features - The kit can be used to lower your truck by placing the rear axle on top of the leaf spring,Smooth ride comfort can be well-maintained.
- Material - Heavy duty stainless steel lift kit, for rusting resistance and long service time.Durable and anti-rust.
- Package including - 2*Spring axle plates,2*Perches,4*U-bolts,2*Bump stops and Enough hardware.
- Satisfaction Guarantee - If you are not completely satisfied with our product, simply return it within 30 days to receive a complete refund. The warranty period is 12 months. Should you have any questions about our product, our customer service team is always ready to assist you.
- Complete Lowering Kit: Includes spindles, torsion keys, coils, shock extenders, and sensor rods for a comprehensive suspension upgrade
- Factory Shock Compatibility: Utilizes your vehicle's original shocks, saving you the cost of replacements
- Vehicle Compatibility: Fits 2000-2006 Chevrolet Tahoe, Suburban 1500, GMC Yukon, and Chevy Avalanche 1500 with 17" wheels or larger
- Smooth Ride Enhancement: Reduces vehicle height by 3/4 inch for a smoother, more controlled driving experience
- Easy Installation: Designed to work with your vehicle's existing hardware for a straightforward installation process
- MUST HAVE CAST STEEL CONTROL ARMS, SEE CHART IN IMAGES FOR GUIDANCE
- Includes: Drop Spindles, Front Adjustable Performance Struts, Rear Shocks, Rear Axle Flip Kit (Uses Factory U Bolts), Adjustable Rear Hangers, Shock Extenders, Rear Bump Stops, Hardware and Instructions
- Includes: Spindles, Front Adjustable Performance Struts, Rear Shocks, Rear Axle Flip Kit, Adjustable Rear Hangers, Shock Extenders, Hardware and Instructions
- Fitment:for 1999-2006 Chevy Suburban 1500 2500，Tahoe，Avalanche，GMC Yukon; for 2000-2006 Cadillac Escalade; for 2000-2009 Hummer H2
- BST BSSP rear lower & upper control arms LCAs for the 2000-2006 GM SUVs outperform the flexible, stamped steel arms and soft rubber bushings that come from the factory
- Advantage: Eliminate wheel hop, increase traction, and gain much more stable towing performance with an easy bolt on installation. All of the ends are fitted with grease fittings for easy lubrication of the fluted polyurethane bushings
- Performance/Custom for GM SUV Rear Lower Control Arms is easy 100% bolt in installation with the use of basic hand tools. No cutting or welding is required; Note:the Instruction is not included. Professional installation is highly recommended
- Package:Come with Pair Suspension Lower Control Arms&Pair Upper Control Arms; 100% TIG welded for the ultimate in strength and appearance; Please make sure that your model is suitable for this product before purchasing
- Lowering 2" in the Front and 3" in the Rear , offering a sleek level drop.�
- Maintains factory geometry and optimum component angles.
- Fabricated blocks are stronger and offer a longer lifespan than cast blocks
- Sturdy Driver and Passenger Lowering Spindles offer plenty of strength and durability�
- Backed by Rough Country's Limited Lifetime Replacement Warranty.
Last update on 2025-05-08 / Affiliate links / Images from Amazon Product Advertising API
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Bulletin No.: PIT5854 Published date: 09/21/2021 Preliminary Information PIT5854 Service Leveling System/Speed Limited Message Due to Aftermarket Modifications Models Brand: Cadillac
Chevrolet Chevrolet GMC Model: Escalade Suburban Tahoe Yukon Model Years: 2021 2021 2021 2021 VIN: from to All All All All All All All All All All All All Engine: All All All All Transmissions: The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI. Involved Region or Country North America Additional Options (RPO) F47 Condition Some customers may comment on a Service Leveling System/Speed Limited message on DIC. Dealers may find no DTC’s present. Cause This could be caused by incorrect vehicle ride height variance due to an aftermarket lowering kit installed. Correction: Inspect for vehicle ride height being altered by performing the Trim Height Inspection (example Document ID # 5568651.) These lowering kits can cause premature wear to the air suspension components, tires, CV Joint, and also affect headlamp aiming. Vehicle Ride Height lowered Note: Decreased distance between top of tire and fender well. If the suspension has been found to be lower than factory settings, inspect for aftermarket adjustable suspension height sensor links being installed. Factory suspension height sensor links are not adjustable. As shown below: Aftermarket Adjustable suspension height sensor links. As shown below: Aftermarket Adjustable Height Sensor Linkages incorrectly adjusted side to side. Aftermarket Adjustable Height Sensor Link not secured properly, preventing accurate height sensor readings. Notice Angle or Rear Axle Drive Shaft due to suspension being lowered. Warranty Information Any concerns or damage that occurs as a result of vehicle modification may not be covered under the Terms of the New Vehicle Limited Warranty. Reference the latest version of TSB 09-00-89-016 (Warranty Administration – Labor Operation 0600014 – Suspected Tampering or Vehicle Modifications) if needed. Version History Version 1 Modified 09/21/2021 – Created on.
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