diff --git a/RELEASES.md b/RELEASES.md
index 9cfcbafea..55b0dbad7 100644
--- a/RELEASES.md
+++ b/RELEASES.md
@@ -1,6 +1,7 @@
Version 0.9.2 (2023-03-XX)
========================
* Draw MPC path instead of model predicted path, this is a more accurate representation of what the car will do.
+* Buick LaCrosse 2017-19 support thanks to koch-cf!
* Škoda Fabia 2022-23 support thanks to jyoung8607!
Version 0.9.1 (2023-02-28)
diff --git a/docs/CARS.md b/docs/CARS.md
index 070d068ca..c4a3cedfe 100644
--- a/docs/CARS.md
+++ b/docs/CARS.md
@@ -4,7 +4,7 @@
A supported vehicle is one that just works when you install a comma three. All supported cars provide a better experience than any stock system.
-# 238 Supported Cars
+# 239 Supported Cars
|Make|Model|Supported Package|ACC|No ACC accel below|No ALC below|Steering Torque|Resume from stop|Harness|Video|
|---|---|---|:---:|:---:|:---:|:---:|:---:|:---:|:---:|
@@ -17,6 +17,7 @@ A supported vehicle is one that just works when you install a comma three. All s
|Audi|Q3 2019-23|Adaptive Cruise Control (ACC) & Lane Assist|openpilot available[1,9](#footnotes)|0 mph|0 mph|[](##)|[](##)|J533||
|Audi|RS3 2018|Adaptive Cruise Control (ACC) & Lane Assist|openpilot available[1,9](#footnotes)|0 mph|0 mph|[](##)|[](##)|J533||
|Audi|S3 2015-17|Adaptive Cruise Control (ACC) & Lane Assist|openpilot available[1,9](#footnotes)|0 mph|0 mph|[](##)|[](##)|J533||
+|Buick|LaCrosse 2017-19[3](#footnotes)|Driver Confidence Package 2|openpilot|18 mph|7 mph|[](##)|[](##)|OBD-II||
|Cadillac|Escalade 2017[3](#footnotes)|Driver Assist Package|openpilot|0 mph|7 mph|[](##)|[](##)|OBD-II||
|Cadillac|Escalade ESV 2016[3](#footnotes)|Adaptive Cruise Control (ACC) & LKAS|openpilot|0 mph|7 mph|[](##)|[](##)|OBD-II||
|Chevrolet|Bolt EUV 2022-23|Premier or Premier Redline Trim without Super Cruise Package|openpilot available[1](#footnotes)|3 mph|6 mph|[](##)|[](##)|GM|
|
diff --git a/selfdrive/car/gm/interface.py b/selfdrive/car/gm/interface.py
index 7e6e71c64..602d7e31b 100755
--- a/selfdrive/car/gm/interface.py
+++ b/selfdrive/car/gm/interface.py
@@ -150,6 +150,13 @@ class CarInterface(CarInterfaceBase):
ret.lateralTuning.pid.kf = 1. # get_steer_feedforward_acadia()
ret.longitudinalActuatorDelayUpperBound = 0.5 # large delay to initially start braking
+ elif candidate == CAR.BUICK_LACROSSE:
+ ret.mass = 1712. + STD_CARGO_KG
+ ret.wheelbase = 2.91
+ ret.steerRatio = 15.8
+ ret.centerToFront = ret.wheelbase * 0.4 # wild guess
+ CarInterfaceBase.configure_torque_tune(candidate, ret.lateralTuning)
+
elif candidate == CAR.BUICK_REGAL:
ret.mass = 3779. * CV.LB_TO_KG + STD_CARGO_KG # (3849+3708)/2
ret.wheelbase = 2.83 # 111.4 inches in meters
diff --git a/selfdrive/car/gm/values.py b/selfdrive/car/gm/values.py
index 2ac418b62..0d13cb982 100644
--- a/selfdrive/car/gm/values.py
+++ b/selfdrive/car/gm/values.py
@@ -66,6 +66,7 @@ class CAR:
CADILLAC_ATS = "CADILLAC ATS Premium Performance 2018"
MALIBU = "CHEVROLET MALIBU PREMIER 2017"
ACADIA = "GMC ACADIA DENALI 2018"
+ BUICK_LACROSSE = "BUICK LACROSSE 2017"
BUICK_REGAL = "BUICK REGAL ESSENCE 2018"
ESCALADE = "CADILLAC ESCALADE 2017"
ESCALADE_ESV = "CADILLAC ESCALADE ESV 2016"
@@ -99,6 +100,7 @@ CAR_INFO: Dict[str, Union[GMCarInfo, List[GMCarInfo]]] = {
CAR.CADILLAC_ATS: GMCarInfo("Cadillac ATS Premium Performance 2018"),
CAR.MALIBU: GMCarInfo("Chevrolet Malibu Premier 2017"),
CAR.ACADIA: GMCarInfo("GMC Acadia 2018", video_link="https://www.youtube.com/watch?v=0ZN6DdsBUZo"),
+ CAR.BUICK_LACROSSE: GMCarInfo("Buick LaCrosse 2017-19", "Driver Confidence Package 2"),
CAR.BUICK_REGAL: GMCarInfo("Buick Regal Essence 2018"),
CAR.ESCALADE: GMCarInfo("Cadillac Escalade 2017", "Driver Assist Package"),
CAR.ESCALADE_ESV: GMCarInfo("Cadillac Escalade ESV 2016", "Adaptive Cruise Control (ACC) & LKAS"),
@@ -156,6 +158,11 @@ FINGERPRINTS = {
{
170: 8, 171: 8, 189: 7, 190: 6, 192: 5, 193: 8, 197: 8, 199: 4, 201: 6, 209: 7, 211: 2, 241: 6, 288: 5, 289: 1, 290: 1, 298: 2, 304: 1, 308: 4, 309: 8, 311: 8, 313: 8, 320: 3, 328: 1, 352: 5, 368: 8, 381: 2, 384: 8, 386: 5, 388: 8, 389: 2, 390: 7, 417: 7, 419: 1, 426: 7, 451: 8, 452: 8, 453: 6, 454: 8, 456: 8, 458: 8, 479: 3, 481: 7, 485: 8, 489: 5, 493: 8, 495: 4, 497: 8, 499: 3, 500: 6, 501: 3, 508: 8, 512: 3, 528: 4, 530: 8, 532: 6, 537: 5, 539: 8, 542: 7, 546: 7, 550: 8, 554: 3, 558: 8, 560: 6, 562: 4, 563: 5, 564: 5, 565: 5, 566: 5, 567: 3, 568: 1, 573: 1, 608: 8, 609: 6, 610: 6, 611: 6, 612: 8, 613: 8, 647: 3, 707: 8, 711: 6, 761: 7, 810: 8, 821: 4, 823: 7, 832: 8, 840: 5, 842: 5, 844: 8, 853: 8, 866: 4, 961: 8, 967: 4, 969: 8, 977: 8, 979: 7, 988: 6, 989: 8, 995: 7, 1001: 5, 1003: 5, 1005: 6, 1009: 8, 1017: 8, 1019: 2, 1020: 8, 1033: 7, 1034: 7, 1105: 6, 1187: 4, 1217: 8, 1221: 5, 1223: 3, 1225: 7, 1227: 4, 1233: 8, 1249: 8, 1257: 6, 1265: 8, 1267: 1, 1273: 3, 1275: 3, 1280: 4, 1300: 8, 1322: 6, 1323: 4, 1328: 4, 1417: 8, 1905: 7, 1906: 7, 1907: 7, 1910: 7, 1912: 7, 1922: 7, 1927: 7
}],
+ CAR.BUICK_LACROSSE: [
+ # LaCrosse Premium AWD 2017
+ {
+ 190: 6, 193: 8, 197: 8, 199: 4, 201: 8, 209: 7, 211: 2, 241: 6, 249: 8, 288: 5, 298: 8, 304: 1, 309: 8, 311: 8, 313: 8, 320: 3, 322: 7, 328: 1, 352: 5, 353: 3, 381: 6, 386: 8, 388: 8, 393: 7, 398: 8, 407: 7, 413: 8, 417: 7, 419: 1, 422: 4, 426: 7, 431: 8, 442: 8, 451: 8, 452: 8, 453: 6, 455: 7, 456: 8, 463: 3, 479: 3, 481: 7, 485: 8, 487: 8, 489: 8, 495: 4, 497: 8, 499: 3, 500: 6, 501: 8, 503: 1, 508: 8, 510: 8, 528: 5, 532: 6, 534: 2, 554: 3, 560: 8, 562: 8, 563: 5, 564: 5, 565: 5, 567: 5, 573: 1, 608: 8, 609: 6, 610: 6, 611: 6, 612: 8, 613: 8, 647: 5, 707: 8, 753: 5, 761: 7, 801: 8, 804: 3, 810: 8, 840: 5, 842: 5, 844: 8, 866: 4, 872: 1, 882: 8, 890: 1, 892: 2, 893: 1, 894: 1, 961: 8, 967: 4, 969: 8, 977: 8, 979: 8, 985: 5, 1001: 8, 1005: 6, 1009: 8, 1011: 6, 1013: 3, 1017: 8, 1019: 2, 1020: 8, 1022: 1, 1105: 6, 1217: 8, 1221: 5, 1223: 2, 1225: 7, 1233: 8, 1243: 3, 1249: 8, 1257: 6, 1259: 8, 1261: 7, 1263: 4, 1265: 8, 1267: 1, 1280: 4, 1300: 8, 1322: 6, 1328: 4, 1417: 8, 1609: 8, 1613: 8, 1649: 8, 1792: 8, 1798: 8, 1824: 8, 1825: 8, 1840: 8, 1842: 8, 1858: 8, 1860: 8, 1863: 8, 1872: 8, 1875: 8, 1882: 8, 1888: 8, 1889: 8, 1892: 8, 1904: 7, 1906: 7, 1907: 7, 1912: 7, 1913: 7, 1914: 7, 1916: 7, 1918: 7, 1919: 7, 1937: 8, 1953: 8, 1968: 8, 2001: 8, 2017: 8, 2018: 8, 2020: 8, 2026: 8
+ }],
CAR.BUICK_REGAL : [
# Regal TourX Essence w/ ACC 2018
{
diff --git a/selfdrive/car/tests/routes.py b/selfdrive/car/tests/routes.py
index 2c4ec84e8..4dd19d24e 100644
--- a/selfdrive/car/tests/routes.py
+++ b/selfdrive/car/tests/routes.py
@@ -52,6 +52,7 @@ routes = [
CarTestRoute("7cc2a8365b4dd8a9|2018-12-02--12-10-44", GM.ACADIA),
CarTestRoute("aa20e335f61ba898|2019-02-05--16-59-04", GM.BUICK_REGAL),
+ CarTestRoute("75a6bcb9b8b40373|2023-03-11--22-47-33", GM.BUICK_LACROSSE),
CarTestRoute("ef8f2185104d862e|2023-02-09--18-37-13", GM.ESCALADE),
CarTestRoute("46460f0da08e621e|2021-10-26--07-21-46", GM.ESCALADE_ESV),
CarTestRoute("c950e28c26b5b168|2018-05-30--22-03-41", GM.VOLT),
diff --git a/selfdrive/car/torque_data/substitute.yaml b/selfdrive/car/torque_data/substitute.yaml
index 696d9829d..5feef1220 100644
--- a/selfdrive/car/torque_data/substitute.yaml
+++ b/selfdrive/car/torque_data/substitute.yaml
@@ -50,6 +50,7 @@ HONDA CIVIC SEDAN 1.6 DIESEL 2019: HONDA CIVIC (BOSCH) 2019
HONDA E 2020: HONDA CIVIC (BOSCH) 2019
HONDA ODYSSEY CHN 2019: HONDA ODYSSEY 2018
+BUICK LACROSSE 2017: CHEVROLET VOLT PREMIER 2017
BUICK REGAL ESSENCE 2018: CHEVROLET VOLT PREMIER 2017
CADILLAC ESCALADE ESV 2016: CHEVROLET VOLT PREMIER 2017
CADILLAC ATS Premium Performance 2018: CHEVROLET VOLT PREMIER 2017