Expert Transmission Repair in Henderson, NV
Your transmission is one of the most complex and costly systems in your vehicle. Sonny's Auto Repair provides complete drivetrain diagnostics, precision fluid exchanges, and expert repair to restore smooth, reliable power transfer. Our ASE-certified technicians diagnose the true cause before recommending work — protecting you from unnecessary rebuilds at transparent, honest pricing.

Transmission diagnostics, fluid exchange & repair — Henderson, NV
Complete Transmission Service
- Computerized transmission diagnostic scan
- Fluid level, color, and condition inspection
- Transmission fluid and filter exchange to spec
- Road test to evaluate shift quality and engagement
- Leak inspection of pan, seals, and cooler lines
- Complimentary multi-point drivetrain inspection
Why It Matters in the Desert
Extreme Las Vegas heat is transmission fluid’s worst enemy. High ambient temperatures and stop-and-go valley traffic cause fluid to break down and overheat, leading to harsh shifting, slipping, and premature failure of expensive internal components.
Fresh, correct-spec fluid and a properly functioning cooler are critical desert defenses. We inspect and service both, catching heat-related wear early — long before it becomes a full transmission replacement.
Your Transmission Service in Three Simple Steps
Book Online
Schedule in 60 seconds. Choose your date, time, and service.
Expert Service
ASE-certified technicians perform your service with factory precision.
Drive Safe
Back on the road with warranty-backed protection and peace of mind.
Transmission Questions, Answered
What are the warning signs of transmission trouble?+
Watch for slipping between gears, delayed or harsh shifting, grinding or shaking, a burning smell, leaking red fluid, or a check engine light. In Las Vegas heat these symptoms can worsen fast, so book a diagnostic as soon as you notice them.
How often should I change my transmission fluid in Las Vegas?+
Because desert heat accelerates fluid breakdown, many vehicles benefit from service more often than the standard interval. We inspect your fluid’s color and condition at each visit and recommend the right schedule for your vehicle and driving habits.
Do I need a full rebuild or just a repair?+
Not every transmission problem requires a rebuild. Our diagnostic process identifies whether the issue is a fluid, sensor, solenoid, or internal mechanical fault. We always recommend the least invasive effective repair and provide a written quote before any work.
Do you service both automatic and manual transmissions?+
Yes. Our ASE-certified technicians service automatic, manual, CVT, and dual-clutch transmissions across most makes and models, using manufacturer-specified fluids and procedures.
How long does transmission service take?+
A fluid-and-filter service is typically completed the same day. More involved repairs vary in scope; we diagnose first, then give you a clear written estimate and timeline for your approval before proceeding.
Explore Our Other Henderson Services

Auto Brake Repair
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AC & Heating
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Auto Engine Repair
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Preventive Maintenance
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Advanced Diagnostics
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Check Engine Light
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Full-Service Repairs
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Oil Changes
View Service Details →Areas We Serve
Sonny's Auto Repair provides expert transmission diagnostics and repair to Henderson, NV and the greater Las Vegas metro area — transparent pricing and ASE-certified technicians on every job.
- Las Vegas
- Paradise
- Spring Valley
- Sunrise Manor
- Enterprise
- Whitney
- Winchester
- Boulder City
- North Las Vegas
- Green Valley
- Seven Hills
- Anthem
- Henderson
- Summerlin
- Blue Diamond
- Sloan
- Mountain’s Edge
- Inspirada

Henderson, NV — Serving the Greater Las Vegas Valley
