2021 Chevrolet Blazer Exterior lighting Problems
- Complaints
- 1about this part
- Share
- 1%of 141 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the exterior lighting of the 2021 Chevrolet Blazer, 1% of the 141 complaints for this model year.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Headlights flash or stay on either low or hi beam,hatch opens itself, awd poping, noise in dash, shifting into awd by itself, transmission not shifting correctly . There is no pattern and it throws no codes. Major electric problems. The keyless entry pad didn't work the day I purchased my car. Had a new one installed 3 programs and now all this started.”
NHTSA complaint #11405457, filed 2021-03Related service bulletins
- 11014170Jan 27, 2025This service bulletin provides information on Exterior Lamp Condensation and Water Leak Information and Replacement Guidelines.
Exterior lighting: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2025 | 1 | 3% |
| 2023 | 4 | 9% |
| 2022 | 1 | 2% |
| 2021 | 1 | 1% |
| 2020 | 1 | 0% |
| 2019 | 1 | 1% |
| 2008 | 1 | 20% |
| 2007 | 2 | 22% |
| 2005 | 1 | 7% |
| 2004 | 2 | 4% |
| 2003 | 4 | 5% |
| 2002 | 54 | 22% |
| 2001 | 68 | 21% |
| 2000 | 79 | 13% |
| 1999 | 30 | 7% |
| 1998 | 40 | 6% |
| 1997 | 15 | 2% |
| 1996 | 21 | 2% |
| 1995 | 12 | 1% |
| 1994 | 5 | 1% |
| 1993 | 1 | 0% |
| 1988 | 1 | 3% |
Other parts of the 2021 Chevrolet Blazer
42 complaintsElectrical system
40 complaintsOther or unknown
24 complaintsBrakes
21 complaintsTransmission and drivetrain
19 complaintsFuel system
18 complaintsSteering
15 complaintsForward collision avoidance
8 complaintsTires
5 complaintsSuspension
4 complaintsEngine cooling
3 complaintsLane departure
3 complaints
← All problems reported for the 2021 Chevrolet Blazer
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology