Symptom explainer · every vehicle on the site
Adaptive cruise or lane keeping misbehaves
Most reported: 2021 Tesla Model Y with 363 reports. Across the 351 model years on this site with at least five, owners filed 6,771.
- 6,771owner reports
- 351model years affected
- 23,000median miles
- 250involved a crash
- 11involved a fire
These reports come from drivers whose assistance systems did something they didn't ask for. Adaptive cruise switches itself off, or brakes for a car that isn't there. Lane keeping tugs the wheel toward the line, or a "sensor blocked" message appears on a clear day. Because both systems can brake or steer, owners tend to file them as safety complaints, and NHTSA files them under speed control, lane departure or forward collision.
Which cars report it most · By model · When it happens · What it is and what to do
The 25 vehicles with the most reports
Each row is one model year. The bar is its count of driver assist reports; the share is how much of that car's complaint file this problem takes up. Bigger sellers draw more reports, so read the share alongside the count. Red dots mark crashes and fires in these reports; amber marks a recall on the same system.
- 12021 Tesla Model Y10 crashes1 fire36334% of its complaints10k mi
- 22022 Tesla Model 32 crashes34946% of its complaints3k mi
- 328911% of its complaints39k mi
- 42022 Tesla Model Y8 crashes1 fire26531% of its complaints4k mi
- 52021 Tesla Model 33 crashes26240% of its complaints7k mi
- 62023 Tesla Model Y10 crashes25922% of its complaints5k mi
- 712713% of its complaints65k mi
- 82018 Honda Odyssey1 crash12112% of its complaints59k mi
- 911925% of its complaints52k mi
- 102018 Honda Accord2 crashes1035% of its complaints21k mi
- 112020 Tesla Model 31 crash9120% of its complaints6k mi
- 129011% of its complaints34k mi
- 132022 Honda Civic4 crashes8810% of its complaints18k mi
- 14844% of its complaints26k mi
- 152023 Tesla Model 31 crash8420% of its complaints2k mi
- 162018 Tesla Model 35 crashes828% of its complaints13k mi
- 172021 Ford Mustang Mach-E1 crashrecall7121% of its complaintsfew mileages
- 182017 Honda CR-V1 crash684% of its complaints43k mi
- 192017 Ram 25001 fire6710% of its complaints42k mi
- 202019 Tesla Model 34 crashes6410% of its complaints27k mi
- 21637% of its complaints68k mi
- 222024 Tesla Model Y5 crashes1 fire6119% of its complaints1k mi
- 23604% of its complaints26k mi
- 242020 Tesla Model Y1 crash5118% of its complaints4k mi
- 25496% of its complaintsfew mileages
Where it dominates the complaint file
Model years with at least 25 reports, ranked by the share of all their complaints that describe driver assist. That takes most of the sales-volume effect out (small sellers still swing more).
- 12022 Tesla Model 32 crashes34946% of its complaints3k mi
- 22021 Tesla Model 33 crashes26240% of its complaints7k mi
- 32021 Tesla Model Y10 crashes1 fire36334% of its complaints10k mi
- 42022 Tesla Model Y8 crashes1 fire26531% of its complaints4k mi
- 511925% of its complaints52k mi
- 62023 Tesla Model Y10 crashes25922% of its complaints5k mi
- 72021 Ford Mustang Mach-E1 crashrecall7121% of its complaintsfew mileages
- 82020 Tesla Model 31 crash9120% of its complaints6k mi
- 92025 Hyundai Tucson Hybrid2 crashes2820% of its complaintsfew mileages
- 102023 Tesla Model 31 crash8420% of its complaints2k mi
By model, every year together
The 12 models with the most reports. Each chip is a model year; the darker chip is its worst year.
- Tesla Model Y1,046
- Ram 2500374
- Honda CR-V308
- Honda Accord249
- Honda Pilot222
- Ram 1500191
- Ford F-150183
- Honda Civic165
- Ram 3500112
When it happens
1,630 of the 6,771 reports state a mileage. The middle half fall between 6,900 and 50,000 miles; the median is 23,000. Each column is a 20,000-mile band.
Reports by model year
Every report of driver assist, grouped by the model year of the car. 250 involved a crash and 11 a fire. 147 people were hurt.
What owners describe
Share of the 6,771 reports that use each phrase. One report can use several.
What got replaced
Reports that name the part, across every vehicle.
What it is and what to do
What these systems do
NHTSA describes adaptive cruise control as cruise that adjusts the car's speed to hold a set gap to the vehicle ahead. Lane keeping assistance watches the lane markings and, if the car starts to drift out, corrects with steering or by braking individual wheels. Lane centering goes further and steers continuously to keep the car in the middle of the lane. They rely on forward cameras and radar. IIHS points out that lane systems read painted lines and the road edge, which can be a problem on roads that are poorly marked or covered with snow.
What the shop will look at
Ask for a scan of the camera and radar modules for stored faults, and expect questions about where and when it happened. If the windshield was replaced or the front of the car was repaired, mention it right away: Delphi's technical team lists windshield replacement on cars with driver assistance as a job that needs a static or dynamic calibration afterward.
When to stop relying on it
If the car steers or brakes on its own in a way you can't predict, turn the feature off and drive without it until it's diagnosed. Your owner's manual shows how. The car is still drivable with the assistance off, but a system that brakes hard on an open highway is a rear-end crash risk for whoever is behind you. IIHS research also finds that regular users of these systems can develop a false sense of security, which is one more reason not to lean on a system that's already misbehaving.
What to tell the mechanic
Give the road type, speed, weather and light. Say whether lane lines were clear, and whether the car was following another vehicle. A phone video of the dash message helps, since many of these faults don't repeat on a short test drive.
Recalls, bulletins and warranty
Software problems in these systems are often fixed by a reflash, which may be issued as a recall if it's a safety defect or as a service bulletin if it isn't. Manufacturers have to file copies of both kinds with NHTSA, and you can see them by searching your year, make and model at NHTSA's recall page. A recall repair costs you nothing. If the dealer can't duplicate the fault, ask them to write your complaint on the repair order anyway, so there's a dated record inside the warranty period.
Counts are unique NHTSA complaints on the 1,040 vehicle model years that have a page here, grouped by the word patterns described on the method page. A vehicle needs five matching reports to be counted in this ranking. Checked Sep 27, 2026. All problem explainers.