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ProblemsByVinFile / 2021-CADILLAC-CT5NHTSA data synced 1 day ago
Cadillac
2021 Cadillac CT5 problems
Light NHTSA footprint — 20 owner complaints and 4 active recall campaigns. Either a clean record or thin data; we'll show what's there.
The 2021 Cadillac CT5 has 20 NHTSA owner complaints and 4 recalls on file (U.S. federal records, as of August 2026). The most-reported system is electrical at 7 complaints (~$850 to repair). Source: NHTSA Office of Defects Investigation.
Solid reliability overall. Common issues are concentrated in a few systems.
0
Critical
4
Severe
0
Moderate
Should you avoid this 2021 CT5?
Acceptable — with caveats
Worth owning if you verify the specific issues below before you buy.
Reliability score 7.8/10 — above the segment average
4 recall campaigns on file
Our read of the federal NHTSA complaint and recall record for this exact year and model —
not a substitute for a pre-purchase inspection. How we score.
NHTSA crash-test safety ratings
5 / 5 overall
Overall★★★★★5/5
Frontal crash★★★★★5/5
Side crash★★★★★5/5
Rollover★★★★★5/5
Driver-assist features on the tested model:
Electronic stability control: Standard · Forward collision warning: Standard · Lane departure warning: Optional
Source: NHTSA New Car Assessment Program — tested configuration: 2021 Cadillac CT5 4 DR AWD. Stars rate crash protection in NHTSA's tests, not overall reliability — see the owner-complaint data below for what actually goes wrong.
Buying a used 2021 Cadillac CT5? Check these first
Here's what this model is known to do — so you can inspect for it, price it in, or
make the seller fix it before you sign.
What to inspect on this specific car
electrical — 7 owner reports
· ~$850 to fix
body — 4 owner reports
· ~$1,500 to fix
⚠ The one to take seriously: electrical is flagged
severe on this model
.
Inspect it closely on a test drive.
Recalls to confirm are done
Run the VIN from the listing — 4 active recalls on this model. Recall repairs are always free.
Verdict for buyers: 7.8/10 model. The priciest documented failure is
body (~$1,500) — get the
seller's service records for it or inspect closely. Otherwise an average-risk used buy at a fair price.
We tell you what this model is known for and what to inspect — a vehicle-history report
tells you what this exact car has been through. Smart buyers get both.
A noise, a warning light, a repair quote, "should I buy this?" — get an answer grounded in
this vehicle's actual NHTSA record, not generic advice.
Dash light, leak, worn part — snap it and we'll read it against this car's record.
Photo attached — type a question or just hit Ask.
Answers use this vehicle's NHTSA complaint & recall record — owner-reported and unverified, not a diagnosis. Verify anything safety-critical with a mechanic.
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What owners are saying
recent NHTSA-filed complaints · verbatim
2021 CT5· electrical
Driver Side door handle stops working. Because the door handle operates with a sensor and not a standard pull door handle something is being affected and it will not open door. Causing safety issue and not being able to enter car normally.
There was no indication that the Automatic Braking System, Air Bags and Seatbelts were not working properly. In August 12, 2021, I was in an auto accident where I rear-ended another dodge car. The air bags did not deploy and Onstar was not notified. I believe I hit the…
The contact owns a 2021 Cadillac CT5. The contact stated that while driving approximately 42 MPH – 66 MPH, the vehicle was shaking abnormally. The contact stated that while driving at an undisclosed speed, the vehicle jerked and shuddered while shifting gears. The cause of the…
The exterior door handle latch release switch fails to open the door. This issue happened to all 4 exterior doors. The problem starts with intermittently, then progresses to complete failure. Once it fails, the entire door handle needs to be replaced. If all 4 doors fail, the…
Had a problem with your 2021 Cadillac CT5?
File a complaint with NHTSA → It's free and official — owner filings are what build the federal safety record behind this page.
Estimate your repair exposure
Drag to your current mileage. Numbers are derived from this vehicle's complaint history.
General Motors LLC (GM) is recalling certain 2019-2020 Cadillac CT6, 2020-2021 CT4, CT5, and 2020-2022 Chevrolet Camaro vehicles equipped with a 10-speed transmission
Wheel lock-up while driving increases the risk of a crash.
Fix: Dealers will install transmission control module monitoring software, free of charge. Owner notification letters were mailed April 7, 2025. Owners may contact Cadillac customer service at 1-800-333-4223 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N242480630.
General Motors, LLC (GM) is recalling certain 2020-2023 Cadillac CT4 and CT5; 2021-2023 Buick Envision; and 2022-2023 Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles
DRLs that do not deactivate as intended may result in a glare, reducing visibility, and increasing the risk of a crash.
Fix: The body control module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. Owner notification letters were mailed January 23, 2023. Owners may contact GMC customer service at 1-888-988-7267, Chevrolet customer service at 1-800-222-1020, or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N222386380. This recall expands previous recall number 22V-827.
Air bags that do not deploy properly can increase the risk of injury in a crash.
Fix: Dealers will inspect both left and right-side roof rail air bags and reinstall the air bags, as necessary, free of charge. Owner notification letters were mailed on August 30, 2021. Owners may contact Cadillac customer service at 1-800-458-8006. GM's number for this recall is N212342780.
Mostly yes. With a reliability score of 7.8 out of 10 based on 20 owner complaints filed with NHTSA, the 2021 Cadillac CT5 is generally a sound vehicle. The areas to watch are listed in the top problem section above — most are budget items, not deal-breakers.
Should you avoid the 2021 Cadillac CT5?
The 2021 Cadillac CT5 is acceptable, with specific caveats. Worth owning if you verify the specific issues below before you buy. The record behind that call: Reliability score 7.8/10 — above the segment average; 4 recall campaigns on file. This is our read of the federal complaint and recall data — not a substitute for a pre-purchase inspection.
What should I check before buying a used 2021 Cadillac CT5?
Inspect the electrical first — it's the most-reported issue on this model, with 7 owner complaints filed. Average repair cost runs about $850 at an independent shop. Also confirm any open recalls have been completed by running the VIN, and ask for service records covering the problem areas listed above.
Is the 2021 Cadillac CT5 a good used car to buy?
It scores 7.8 out of 10 on our NHTSA-based read of 20 owner complaints. The main thing to watch is electrical. Priced fairly and clean on inspection, it's a reasonable used buy. Our data covers what this model is known for — pair it with a vehicle-history report on the VIN to see what that specific car has been through.
What's the most common problem on the 2021 Cadillac CT5?
Based on NHTSA records, the most-reported issue is electrical, with 7 complaints filed. Average repair cost runs about $850 at an independent shop.
What's the most expensive thing that goes wrong?
The electrical is one of the costlier repair items. Average repair cost runs about $850 at an independent shop. Catching early warning signs can sometimes extend life by 20–30,000 miles.
How do I check if my Cadillac CT5 has open recalls?
Paste your VIN into the decoder at the top of this page. We pull live from NHTSA, so you'll see exactly which campaigns apply to your vehicle and whether the dealer has logged the fix. Recall repairs are always free regardless of mileage or warranty status.
Is an extended warranty worth it on a 2021 Cadillac CT5?
Math is straightforward: a quality service contract runs $1,800–3,500 over 3 years. With 20 complaints on file and the costliest repair averaging $850, one major failure more than pays for it. The catch is reading the contract — many providers exclude wear items and require pre-authorization, so cheaper plans are not always better value.
Recall and complaint data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database, last synced 1 day ago. Verify the raw federal record at
nhtsa.gov/vehicle/2021/Cadillac/CT5.
Editorial commentary written by ProblemsByVin contributors and reviewed by ASE-certified mechanics.
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