Acura TL Shift Knob Size Manual

The Acura TL shift knob is designed for precise gear shifting with ergonomic comfort. This manual covers specifications, installation procedures, maintenance guidelines, and troubleshooting for Acura TL shift knobs across various model years. Below are key sections for specifications, installation, operation, maintenance, and troubleshooting.

1. Specifications 2. Installation Procedures 3. Removal Instructions 4. Compatibility Chart 5. Operation Guidelines 6. Maintenance & Care 7. Troubleshooting 8. Warranty Information

Specifications

Detailed technical specifications for Acura TL shift knobs:

Specification	Details
Thread Size	M10 x 1.5 mm (standard)
Height	2.5 inches (63.5 mm)
Diameter	1.8 inches (45.7 mm)
Weight	180-220 grams (varies by material)
Materials	Leather, aluminum, stainless steel, polymer
Finish Options	Chrome, brushed aluminum, leather-wrapped
Installation Type	Screw-on with reverse thread lock
Temperature Range	-40°F to 185°F (-40°C to 85°C)

Installation Procedures

Proper installation ensures optimal shifting performance and safety.

Park vehicle on level surface and engage parking brake
Remove existing shift knob by turning counterclockwise (lefty-loose)
Clean shift lever threads with compressed air
Apply thread locker to new shift knob threads
Screw new knob clockwise until hand-tight
Final tighten with 15-20 ft-lbs torque (do not overtighten)
Test shift pattern through all gears

WARNING! Ensure vehicle is in park/neutral during installation. Overtightening may damage threads.

Removal Instructions

Safe removal procedure for shift knob replacement:

Park vehicle and engage parking brake
Grip knob firmly and turn counterclockwise
If stuck, use strap wrench for additional leverage
Clean shift lever threads after removal
Inspect for thread damage before installing new knob

CAUTION! Avoid using excessive force that could damage shift lever mechanism.

Compatibility Chart

Acura TL shift knob compatibility across model years:

Model Year	Thread Size	Notes
1999-2003	M10 x 1.5 mm	Standard thread pattern
2004-2008	M10 x 1.5 mm	Includes automatic and manual transmissions
2009-2014	M10 x 1.5 mm	Some models may require adapter
Automatic	M10 x 1.5 mm	Push-button release models may vary
Manual	M10 x 1.5 mm	Reverse thread lock standard

Operation Guidelines

Proper operation and shifting techniques:

Normal Shifting: Apply firm, deliberate pressure when changing gears
Cold Weather: Allow knob to warm up if stiff in extreme cold
Cleaning: Use appropriate cleaner for knob material (leather conditioner, metal polish)
Inspection: Monthly check for looseness or wear
Grip Position: Maintain proper hand position for ergonomic shifting

Maintenance & Care

Regular maintenance ensures longevity and performance:

Monthly: Check tightness and retighten if necessary
Quarterly: Clean with appropriate material-specific cleaner
Annually: Inspect for wear, cracks, or material degradation
As needed: Reapply thread locker if knob becomes loose

Materials Care: - Leather: Use leather conditioner to prevent cracking - Metal: Polish with non-abrasive metal cleaner - Polymer: Clean with mild soap and water

Troubleshooting

Problem	Possible Cause	Solution
Loose shift knob	Improper installation or worn threads	Retighten to 15-20 ft-lbs; inspect threads
Difficult shifting	Overtightened knob or misalignment	Loosen and retighten properly; check alignment
Knob won't thread	Wrong thread size or damaged threads	Verify M10 x 1.5 mm size; inspect for damage
Material cracking	Age, sun exposure, improper cleaning	Replace knob; use UV protectant for leather
Vibration/rattling	Loose installation or internal components	Retighten; check for broken internal weights

Warranty Information

Acura TL shift knobs are covered by limited warranty against manufacturing defects:

Duration: 12 months from purchase date
Coverage: Material and workmanship defects
Exclusions: Normal wear, improper installation, accidents
Claims: Contact Acura customer service with proof of purchase
Support: 1-800-382-2238 or www.acura.com