Head-to-head reliability
Porsche Cayman vs Chevrolet Silverado
How the Porsche Cayman and Chevrolet Silverado compare on NHTSA complaints, recalls and crash reports — and which is the lower-risk used buy.
Based on NHTSA owner-complaint & recall records
Porsche Cayman vs Chevrolet Silverado: The Cayman averages 3.5 complaints per year with no crash-related reports, while the Silverado averages 510.5 complaints and 117 crash-related incidents. Cayman owners report gearshift and engine debris issues; Silverado owners face sudden power loss and brake failures. Source: NHTSA owner complaints.
The picture
Is the Porsche Cayman or Chevrolet Silverado more reliable?
A plain-English read on what the NHTSA record says about living with each vehicle.
Porsche Cayman
The Porsche Cayman is a sports car that, over a decade, has drawn a modest number of complaints—about 3.5 per year—but they cluster around powertrain and engine issues that can leave you stranded or require costly repairs. Owners report gearshift failures, broken shifter cables, and engine debris, which are serious for a performance vehicle. Airbag and dashboard concerns also appear, but the overall volume is low, suggesting a generally reliable car with specific weak points to check.
Chevrolet Silverado
The Chevrolet Silverado, a full-size pickup, shows a much higher complaint rate—averaging over 500 per year—with frequent reports of engine, transmission, and electrical problems. Owners describe sudden loss of power, brake failures, and diesel particulate filter issues, often in newer models. With 100 recalls and 117 crash-related complaints, the Silverado demands careful inspection and a service history review before purchase.
The numbers
Side-by-side NHTSA record
Lower is better in every category. The highlighted cell is the stronger result.
| Category | Porsche Cayman | Chevrolet Silverado |
|---|---|---|
| Total complaintsAll model years combined | 35 Better | 5,105 |
| Safety recallsFederal recall campaigns | 7 Better | 100 |
| Crash reportsCrash-related complaints | 0 Better | 117 |
| Complaints per yearAveraged across model years | 3.5 Better | 510.5 |
| Reported injuriesTied to owner complaints | 1 Better | 104 |
| Reported deathsTied to owner complaints | 0 Better | 1 |
Source: NHTSA owner complaints & recall records.
What actually goes wrong
The problems owners report
The most-complained-about systems on each vehicle — what fails, and what owners say in their own words.
Porsche Cayman
- 01POWER TRAIN12
- 02ENGINE7
- 03AIR BAGS6
- 04UNKNOWN OR OTHER4
- 05ENGINE AND ENGINE COOLING3
Owners report the manual gearshift lever becoming limp or disconnected, and shifter cables snapping, leaving the car stuck in gear—a serious safety and drivability issue on the highway.
The 3.4L engine can shed metal slivers into the oil, indicating internal wear that could lead to catastrophic failure if not caught early.
Faulty airbag control units trigger warning lights and may not deploy in a crash; some VINs are missed by recalls, so verify your car's status.
Dashboard leather can separate, potentially interfering with airbag deployment, and rear axle carrier fractures have been reported, which could cause loss of control.
“DRIVING AT HIGHWAY SPEEDS (55-60 MPH), ATTEMPTED TO DOWNSHIFT DUE TO TRAFFIC AND THE MANUAL GEAR SHIFT LEVER DID NOT RESPOND. IT WAS COMPLETELY LIMP AND SEEMED DISCONNECTED FROM THE SHIFTING ACTION. LUCKILY I WAS ABLE TO NEGOTIATE THE VEHICLE THROUGH TRAFFIC,…”
“WHILE ON A PUBLIC FREEWAY, I HEARD A LOUD SNAP AND THE SHIFTER CABLES BROKE IN AN ATTEMPT TO SHIFT INTO 4TH GEAR, LEAVING THE VEHICLE STUCK IN 3RD GEAR. VEHICLE WAS IN A GRADUAL ACCELERATION AT THE TIME OF FAILURE ENTERING THE FREEWAY. THIS RESULTED IN AN UNS…”
Chevrolet Silverado
- 01ENGINE1,698
- 02POWER TRAIN1,453
- 03ELECTRICAL SYSTEM982
- 04SERVICE BRAKES691
- 05UNKNOWN OR OTHER542
Frequent reports of 6.2L and 6.6L engines losing power or stalling, and diesel particulate filters clogging repeatedly, requiring dealer intervention.
Transmissions can suddenly shift into neutral while driving, and there are reports of driveline failures that leave owners stranded.
Sudden loss of braking and steering, accompanied by warning messages, points to electrical gremlins that can compromise safety.
Brake pedal remains firm but braking effectiveness drops dramatically, a terrifying experience that has led to crashes.
“I purchased the 2026 Chevrolet Silverado with a 6.2L motor "new" from the dealer with 5700 miles on XXX. Roughly a month and 2500 miles later, my family and I were in the vehicle, 750 miles from home, returning from a vacation to [XXX] from the [XXX]/[XXX] ar…”
“My 2026 Chevrolet Silverado 3500 with the 6.6L Duramax diesel has experienced three separate P2463 Diesel Particulate Filter excessive soot accumulation events at approximately 4,300, 5,500, and 10,280 miles. Each event required a Chevrolet dealer to perform…”
Official recalls
Safety recalls on record
Federal recall campaigns — the defect, the risk, and the fix. Confirm any open recall was completed before you buy.
Porsche Cayman — 7 recalls
The defect: Porsche Cars North America, Inc. (Porsche) is recalling certain 2013-2015 Boxster, 2013-2014 Boxster S, 2014-2015 Cayman, Cayman S, 2015 Boxster GTS, and Cayman GTS vehicles. The rear-axle carrier side sections may fracture.
The risk: A carrier fracture may cause a loss of control, increasing the risk of a crash.
The fix: Dealers will replace the rear-axle carrier side sections, free of charge. Owner notification letters were mailed January 6, 2022. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is AMB7.
The defect: Porsche Cars North America, Inc. (Porsche) is recalling certain 2013-2015 Boxster, 2013-2014 Boxster S, 2014-2015 Cayman, Cayman S, 2015 Boxster GTS, and Cayman GTS vehicles. The rear-axle carrier side sections may fracture.
The risk: A carrier fracture may cause a loss of control, increasing the risk of a crash.
The fix: Dealers will replace the rear-axle carrier side sections, free of charge. Owner notification letters were mailed January 6, 2022. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is AMB7.
The defect: Porsche Cars North America, Inc. (Porsche) is recalling certain 2014 Cayman and Cayman S, 2014-2016 911 GT3, 2016 911 GT3 RS and 911 R, 2018 911 GT3 and 911 GT2 RS and 2019 911 GT3 RS, 911 GT3, and 911 GT2 RS vehicles. The Child Restraint System (CRS) instructions within the Owner's Manual may not…
The risk: Improper CRS installation increases the risk of an injury to the occupant in the event of a crash.
The fix: Porsche will notify owners, and dealers will provide a an Owner's Manual supplement with proper CRS installation instructions, free of charge. The recall began February 7, 2020. Owners may contact Porsche customer service at 1-800-767-7243…
The defect: Porsche Cars North America, Inc. (Porsche) is recalling certain model year 2014-2015 Porsche 911, Boxster, and Cayman vehicles manufactured May 7, 2014, to September 23, 2014. The front hood upper lock components were not manufactured to specification and may fail to securely latch the vehicle's ho…
The risk: A failure of the hood latching mechanism may cause the hood to suddenly open during vehicle operation and will severely impede the driver's ability to see out the front windshield, increasing the risk of a vehicle crash.
The fix: Porsche will notify owners, and dealers will replace the lock on the front hood, free of charge. The recall began December 12, 2014. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is AE04.
Chevrolet Silverado — 100 recalls
The defect: General Motors, LLC (GM) is recalling certain 2020-2024 Chevrolet Silverado 2500, 3500, GMC Sierra 2500 and 3500 vehicles equipped with power-unlatching tailgates. The tailgate's electronic gate-release switch may short circuit due to water intrusion, which can result in the tailgate inadvertently…
The risk: An unlatched tailgate may open while driving and result in a loss of unsecured cargo, creating a road hazard and increasing the risk of a crash.
The fix: Owners are advised to check that the tailgate is closed and latched before driving. Dealers will replace the exterior touchpad switch assemblies, free of charge. Owner notification letters were mailed May 17, 2024. Owners may contact Chevr…
The defect: General Motors, LLC (GM) is recalling certain 2024 Chevrolet Silverado 2500, 3500, and GMC Sierra 2500, 3500 vehicles. The steering gear shaft may fracture and disconnect from the steering arm.
The risk: A steering arm that disconnects may result in a total loss of steering control, increasing the risk of a crash.
The fix: Dealers will inspect and replace the steering gear, if necessary, free of charge. Owner notification letters were mailed September 22, 2023. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-800-4…
The defect: General Motors, LLC (GM) is recalling certain 2024 Chevrolet Silverado HD 2500, 3500, and GMC Sierra HD 2500, 3500 vehicles equipped with power-unlatching tailgates. The tailgate's electronic gate-release switch may short circuit due to water intrusion, which can result in the tailgate inadvertentl…
The risk: An unlatched tailgate may open and result in a loss of unsecured cargo, creating a road hazard and increasing the risk of a crash.
The fix: Owners are advised to check that the tailgate is closed and latched before driving. Dealers will replace the exterior touchpad switch assemblies, free of charge. Owner notification letters were mailed December 17, 2024. Owners may contact…
The defect: General Motors, LLC (GM) is recalling certain 2023-2024 GMC Hummer EV pick up, 2024 GMC Hummer EV SUV, and 2024 Chevrolet Silverado EV vehicles. The left or right front seat belt buckle attachment bolts may not be tightened properly.
The risk: An improperly tightened seat belt buckle may not restrain an occupant as intended, increasing the risk of injury during a crash.
The fix: Dealers will tighten the left and right front seat belt buckle attachment bolts, free of charge. Owner notification letters were mailed December 21, 2023. Owners may contact GMC customer service at 1-833-EVCHEVY (1-833-382-4389) (TTY 711 /…
Buyer analysis
Porsche Cayman or Chevrolet Silverado: which should you buy?
The Porsche Cayman has far fewer complaints per year (3.5 vs 510.5) and no crash-related reports, making it a lower-risk choice in terms of frequency. However, its issues are still serious, so a thorough pre-purchase inspection is essential. The Silverado's high complaint volume and crash involvement suggest more frequent and potentially dangerous failures.
Key differences
- Cayman complaints are rare but involve gearshift and engine failures; Silverado complaints are common and include sudden power loss and brake failures.
- Cayman has no crash-related complaints; Silverado has 117, indicating real-world safety incidents.
- Cayman airbag issues are specific to control units; Silverado electrical problems can disable brakes and steering.
- Silverado's diesel particulate filter issues are unique to its diesel engines, adding maintenance burden.
- Test the gearshift through all gears at speed; listen for any looseness or hesitation.
- Check for oil analysis reports or service records showing metal debris in the oil.
- Ask about any engine stalling or loss of power incidents, and verify all recalls are performed.
- Inspect brake system for any warning lights or unusual pedal feel, and check for DPF service history.
Before you buy
- Obtain a vehicle history report and verify all recalls are completed for both models.
- Have a trusted mechanic perform a pre-purchase inspection, focusing on the specific problem areas listed.
- For the Cayman, request oil analysis results and test the shifter mechanism thoroughly.
- For the Silverado, check for any pending electrical or brake warnings and review service records for DPF cleanings.
- Consider an extended warranty to cover potential costly repairs.
Check the actual car
Comparing models is smart. Checking the VIN is essential.
Brand averages tell you the trend. A VIN check tells you what's wrong with the specific Porsche Cayman or Chevrolet Silverado in front of you — accident history, open recalls and title records.
Go deeper
Full reliability reports
- Comparison
- Porsche Cayman vs Chevrolet Silverado
- Porsche Cayman total complaints
- 35
- Chevrolet Silverado total complaints
- 5,105
- Porsche Cayman total recalls
- 7
- Chevrolet Silverado total recalls
- 100
- Porsche Cayman avg complaints/year
- 3.5
- Chevrolet Silverado avg complaints/year
- 510.5
- More reliable overall
- Porsche Cayman
- Porsche Cayman top complaint area
- POWER TRAIN
- Chevrolet Silverado top complaint area
- ENGINE